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'AspNet' does not exist in the namespace 'Microsoft''EntityState' is an ambiguous reference between 'System.Data.EntityState' and 'System.Data.Entity.EntityState''NavigationExpandingExpressionVisitor query in ef core 3.1 error'System.Data.Entity.Core.EntityCommandExecutionException' occurred in EntityFramework.SqlServer.dll but was not handled'System.Data.Entity.DbContext' is defined in an assembly that is not referenced'Validation failed for one or more entities. See 'EntityValidationErrors' property for more details.'"An entity object cannot be referenced by multiple instances of IEntityChangeTracker" Exception Occur when adding value to the table using Entity Framework"Cannot implicitly convert type 'int?' to 'int'. An explicit conversion exists (are you missing a cast?)" when using .max()"EF 6.x DbContext Generator" NOT "ADO.NET Entity Data Model""TableName" does not contain a definition for 'ToList'/'Where'/'Single'“Cannot insert the value NULL into column ” but my column is Nullable…[DatabaseGenerated(DatabaseGeneratedOption.Identity)] not working in Entity Framework[EF] CodeFirst connect to remote SQL database[ERROR] - Object must implement IConvertible - while using EF and Repository UoW to fetch Data -[SqlException (0x80131904): A transport-level error has occurred when receiving results from the server. (provider: TCP Provider, error: 0 - The specified network name is no longer available.)][System.InvalidOperationException] = {"The Entity Framework provider type 'System.Data.SQLite.EF6.SQLiteProviderServices, System.Data.SQLite.EF6' registered in the application config file for the ADO.NETa circular reference was detected while serializing an object of type 'System.Reflection.RuntimeModule'A transport-level error has occurred when sending the request to the serverAbout error: "Cannot find the object "dbo.xxxx" because it does not exist or you do not have permissions.", in PM window, help pleaseAccessing related tables when no Foreign Key relationship is definedadd a new column to list using linq and entity?add a new row on top of the datatableAdd a Row to a Table Using LINQ TO SQLAdding 2 additional fields to SQLBulkCopyAdding a new table (entity) to the already created Model(edmx) file.Adding entity with its related entities (navigated properties) using entity frameworkAdding items from one datatable to anotheradding null values to datatableAdding prefix 'N' in SQLAdditional information: User without permissions.After "drop table", EF Migration can't create tableAfter giving default value to NULL, store procedure still demand the variable.An entity object cannot be referenced by multiple instances of IEntityChangeTracker with repository + unit of workAn Entity with Key (PK) will not round-trip when...An error occurred while getting provider information from the database. This can be caused by Entity Framework using an incorrect connection string. Check the inner exceptions for details and ensure that the connection string is correct.An error occurred while updating the entries. See the inner exception for details.An exception of type 'NHibernate.Exceptions.GenericADOException'An exception of type 'System.Data.Entity.Core.MetadataException' occurred in EntityFramework.dll but was not handled in user codeAn exception of type 'System.NotSupportedException' occurred in EntityFramework.SqlServer.dll but was not handled in user codeAn object with the same key already exists in the ObjectStateManager. The ObjectStateManager cannot track multiple objects with the same key.Any tool exist to convert any SQL query to LINQ statement in c#Any way to create an nvarchar(MAX) column using code firstare entity framework avoid SQL injection ?Asp.net mvc select from databaseAuto Increment (Identity) does not work in Entity FrameworkBest way of extracting column names from a datatableBest way to check if exists?Best way to delete records from Child and Parent tablesBest way to Find Duplicate entries by a LINQ Group ByBest way to handle exception in ADO.Net repository patternBest way to read multiple records based on a list of IDsBuild failed error!Build Where Clause Dynamically in Entity Frameworkbulk insert, update and delete from c# datatable to sql tablebulkcopy for computed columnsBUMP EF Core 5.0 model customization needed - Microsoft.Data.SqlClient.SqlException (0x80131904): Invalid column name 'BIdNavigationBId'.C# & Oracle.DataAccess.Client.OracleExceptionC# Entity Framework Last RecordC# Entity LINQ Include another table into collection with .Include()C# Linq Subquery (NOT IN)C# LINQ: How to select multiple field and return listC# Question: LINQ Select statement all records ....c# sql delete commandcall an oracle function from c#Can I get a value or null from an Entity query?Can I specify the parent ID column to use for one-to-many relationship with EF code first?can't convert from model to another ?Can't Find .HasForeignKeycan't find edmx file in Entity FrameworkCan't save date from a textbox to a database.Cannot assign method group to an implicitly-typed local variablecannot be applied to operands of type 'string' and 'System.Guid'Cannot convert anonymous type to an MVC modelcannot convert from 'int' to '<anonymous type:cannot convert string to bool error in LINQCannot create a DbSet for 'ApplicationUser' because this type is not included in the model for the contextCannot create file *.mdf because it already exists...Cannot find System.Data.EntityCannot find the object "xxx" because it does not exist or you do not have permissions.Cannot implicitly convert type 'AnonymousType#1' to 'System.Collections.Generic.List<ProductType>'Cannot implicitly convert type 'long' to 'int?'. An explicit conversion exists (are you missing a cast?)Cannot implicitly convert type 'System.Data.Entity.DbSet<> 'System.Linq.IQueryable<>'Cannot implicitly convert type 'System.DateTime?' to 'System.DateTime'Cannot insert the value NULL into columnCannot update identity column 'ID' errorcasting to decimal is not supported in LINQ to entities queriesChange connection string of Linq to Sql entitiesChanging Multiple Properties Of An Object Using A Single Indexer And A Single LINQ QueryCharIndex in LINQcheck duplicated columns in datatable using linqCheck for Duplicate data in C#Check GUID is null?Check if a column exists in a DataviewCheck if a table column value exists in another table column using linqCheck to see if last recordChecking Null in where condition using entity frameworkCode first approach with database table already exists.Code First Entity : The property is part of the object's key information and cannot be modified.Code First Entity Framework not creating tables in the databaseCode first, EntityType 'IdentityUserLogin' has no key defined.Column names in each table must be unique. Column name 'BackupFilename' in table 'dbo.MachineData' is specified more than once.compare two columns in two data tablesCompare two data tables for differences, using LINQComparing Guid field in lambda expressionComparing two datasets in C#Compile Error : Cannot implicitly convert type 'long?' to 'long'. An explicit conversion exists (are you missing a cast?)Complex Joins with EF,Repository PatternConditional where clause inline query if parameter is emptyConditional Where clauses of EF QueriesConfused by Unable to cast object of type 'System.Byte' to type 'System.Boolean'Connecting Ms Access Database to .Net MVC ApplicationContains() method not working in Linq to EntitiesContext used twice and complains about not being thread safe only in production dev is finecontext.Entry(entity).State = EntityState.Modified; won't update my record.Context.SaveChanges() in foreach throwing "already an open data reader..." errorcontext.SaveChanges() not workingConversion from type 'DBNull' to type 'String' is not valid (How to fix this code)convert .dbml to entityConvert a datatable column from string to integerconvert arraylist tinto datatableconvert dataset to object in c#Convert IQueryable to DatatableConvert Linq to SQLConvert linq to sql queryConvert SQL query to LINQConvert string to Int in LINQ to Entities !!Convert to List after FirstOrDefaultConvert.ToDouble Conversions in Linqconverting a list to dataset errors as "Cannot set Column '' to be null. Please use DBNull instead."Converting datareader to a listConverting datareader to a list of Classes?Converting Ilist to List<>converting the Datatable to string builder formatConverting Variable Column Datatable to ListCould not create the driver from NHibernate.Driver.SqlServerCeDriver.Could not find stored procedure (but it's there)Could not load an entity when table is existingCould not load file or assembly 'MySql.Data.Entity, Version=6.9.8.0Could not load file or assembly EntityFrameworkCreate a New Schema via MigrationCreate DataTable in For LoopCreate table on runtimeCREATE TABLE permission denied with MigrateDatabaseToLatestVersionCreating a generic filter for IQueryable collectionsCreating LINQ queries with 'distinct' and multiple 'inner joins'CS1703: An assembly with the same identity has already been imported. Try removing one of the duplicate references.Custom compare dictionaries using LINQda.Fill(ds) not working.......and not throwing any error/exception alsodata is null. this method or property cannot be called on null values. datareaderData is sorted by date but sorted with time not working ?Database already exists. Choose a different database name.Database Connection is a managed object or unmanaged object??Database First: Multiplicity Conflicts with the referential Constraints in Role 'UserInformation'DataBase Update error in Entity framework.Database was not configured through Database method - error found in Global.asax.csDataContext.SaveChanges on two related tables.datareader threw an exception of type 'system.indexoutofrangeexception'DataSet - Does not contain a constructor that takes '1' argumentsDataset column id get max value in the columnDataSet does not support System.Nullable<>.Dataset.select using Group byDataTable.Count vs DataTable.Rows.CountDataTable.Load(dr) not working somehow.DataTable.Reset() and DataTable.clear()?DataTable.Select Vs DataTable.AsEnumerable().FirstOrDefaultDataTable.Select() Filtering Character CaseSensitive ProblemDbContext ExecuteSqlCommand always return -1DbFunctions.TruncateTime and compare datesDeadlock: System.Data.SqlClient.SqlException: Transaction (Process ID 51) was deadlocked on lock resources with another process and has been chosen as the deadlock victim.Defining a Child Repository + Generic Repository + UnitOfWorkDelete Table (Entity Set) from EDMX File not Deleted .... when i open it by xml .... and can't add that table againDetermining the principal end of the association between the typesDifference between context.add and attachDifference Between EDMX.cs file and Objectset.tt fileDirectory lookup for the file mdf type failed with the operating system error 5(Access is denied.)distinct values from a column in datatableDoes loading SqlDataReader data into object is possible in c#Does Single , SingleOrDefault , First, FirstOrDefault & ToList cause the query to execute in the databaseDropdownlist Boolean Yes No TextDuplicate Primary Key ValidationDuplicate Records using Join in Linq to Entitiesdynamic linq groupby with substringDynamic Linq To Entity doesn't workDynamic or conditional where clause in linqDynamic stored procedures not working in Entity Frameworkdynamically building a linq to sql where predicateDynamically change table schema in entity framework not workingDynamically passing Tablename and Column name at runtime to Linq QueriesEdmx designer won't update after adding table column, weird errorEF - A member of the type, 'X', does not have a corresponding column in the data reader with the same name.EF - Bridge Tables in the Entity ModelEF 4.0 The selected stored procedure returns no columns, when i try to import my stored procedure inside my asp.net mvcEF 5, How can I insert into child table without loading parent table into memory first?EF 6 and Default ValuesEF 7 Circular dependency resolve?EF Core - conditionally use .IncludeEF Core - InvalidOperationException: No database provider has been configured for this DbContextEF Core - select MAX with subqueryEF Core 3 design time migrations broken by Microsoft.EntityFrameworkCore.Design DevelopmentDependency- [
EF Core 3.1.0 - Method not found: 'System.Collections.Generic.IEnumerable1<!!0>](/archive/msdn-technet-forums/078819cf-4c27-424b-bd31-3fc77a987862 "EF Core 3.1.0 - Method not found: 'System.Collections.Generic.IEnumerable1<!!0>") EF core and Visual studio 2019 errorEF Core Failing on IDENTITY_INSERT is set to OFFEF core LAG sql functionEF Core Migration: InsertData() with using a value from a select statementEF Core run stored procedure from multiple tablesEF Core target project and startup project main purposes under hoodEF does not recognize my SQL server table's Primary key.EF Exception:The context cannot be used while the model is being createdEF for cross reference tables?EF Linq How to exclude fields?EF LINQ: How to fetch data from few specific columnEF returning two identical records when 2 different records are in the table.EF SaveChanges gives Object reference not set to an instance of an objectEF trying to select a column that doesn't exist (Oracle database)EF: Order by DateTime including MillisecondsEF/ASP.NET - Should I use the Repository as a singleton?EF4 CTP4, SqlException (0x80131904): Invalid object name 'dbo.LanguageCultures'EF5 - No migrations configuration type was foundEmpty string and not nullEncryption of password which is mentioned in hibernate.cfg.xml file of NhibernateEntity Data Model Designer is unable to display the file you requestedEntity Data source wizard version is only compatible with Entity Framework 5Entity Framework - Bad performance with SNINativeMethodWrapper:SNIReadSyncOverAsyncEntity Framework - Change database nameEntity Framework - OnModelCreating not executedEntity Framework -database permissionEntity Framework : Schema specified is not validEntity Framework and changing table mappings dynamicallyEntity Framework and ToList() methodEntity Framework Auto Increment code firstEntity Framework code first database is not createdentity framework connection string errorEntity Framework Core Invalid Column after updating database tableEntity Framework Core no mapping to a relational type can be found for the CLR type 'object[]'Entity Framework Data Annotation - Working With DateTimeEntity Framework don't create databaseEntity Framework Entity without primary key.Entity Framework Error - not defined in namespaceEntity framework escaping like %Entity framework is getting timed out to connect to SqlserverEntity Framework Query Where Clause Being IgnoredEntity Framework Random OrderingEntity Framework Slow first queryEntity Framework Update Model from DataBase Give me alot of Exception "Problem in Mapping Fragment(s) starting at line"Entity Framework: Get count fasterEntity Framework: How to get ID of a parent table before insert the same id in child tableEntity Framework: How to set a start value for an Auto Incremented Column?Entity model from table views.Entity Not Updating in DatabaseEntityFramework - Update only "dirty" fieldsEntityFramework Core, Do we have to explicitly dispose the DBContextEntityFramework.dll Could not be loadedEntitySet -Best way to query related child objects with a limiting criteraEnumeration yielded no results??Environment.NewLine Can't save MS SQL in Entity FrameworkError : The SqlParameter is already contained by another SqlParameterCollectionERROR [42000] [Microsoft][ODBC Microsoft Access Driver] Syntax error (missing operator) in query expressionError 11009: Property 'xxx' is not mappedError 2019 Member Mapping specified in not validerror 3007: Problem in mapping fragments starting at lines 346, 499:Column(s) [TenantID] are being mapped in both fragments to different conceptual side properties.Error appears: "This row already belongs to this table." on add row to a datatableError building an entity model - .tt is empty with one line: ErrorGeneratingOutputError: "System.Data.OleDb.OleDbException: No value given for one or more required parameters.error: 40 -Could not open a connection to SQL ServerError: Cannot implicitly convert type '.....DbSet<...Entities.Product>' to '....Linq.IQueryable<...Entities.Product>'Error: Cannot implicity convert type System.Data.DataTable to System.Collection.IEnumerableError: Could not load type 'System.Data.Entity.Design.AspNet.EntityDesignerBuildProvider'Error: Incorrect syntax near 's'. Unclosed quotation mark after the character string ')'.Error: LINQ to Entities does not recognize the method 'Int32 Parse(System.String)' method, and this method cannot be translated into a store expression.Error: LINQ to Entities only supports casting EDM primitive or enumeration types: after update to .Net Framework 4.5error:"Format of the initialization string does not conform to specification starting at index 0"Error:2019 Member mapping specified is not valid. -- Error while changing the datatype of a column.Error:A query body must end with a select clause or a group clause_Etnity Framework ContainsAll matching multiple valuesevent id 1309, An unhandled exception has occuredexecute multiple sql statements on single connectionExecuteDataSet vs ExecuteReaderExecuteNonQuery requires the command to have a transaction errorExecuteNonQuery SQL injection error from concatanating C# client values into a hard coded SQL string making a call to a SQL server.ExecuteNonQuery with output parameterExecuteNonQuery() returning -1 from an insert spExecuteReader requires an open and available Connection. The connection is currently closed.ExecuteReader then ExecuteNonQuery INSERT - ProblemexecuteScalar method is giving errorExecuteScalar: CommandText property has not been initialized - againExecution Timeout Expired. The timeout period elapsed prior to completion of the operation or the server is not respondingExport DataTable to fixed width text fileFetching a single Row from Sql DatareaderFill DataTable Using Entity Framework using linq Query with all Possible way?Filter Upper case records using DataTable.DefaultView.RowFilterFiltering DataTable Against Second DataTableFind Duplicate Rows in DataTable using LINQ via VB.Net syntaxFinding a specific record when multiple records are retreived using Linq to SqlFine tuning one-to-many relationshipFK Column error - MVC Core 2 - SqlException: Invalid column name 'DepartmentID1'.Foreign Key constraint in Entity Framework in code first approachForeign key object is nullForeign key referencing same tableFree Tool for SQL to LINQgeneric repository and multiple column sortGenericArguments[0], 'Models.User'...violates the constraint of type 'TUser'get all records created today when date is formatted as UTCGet Column Name and Value using Linq QueryGet datetime.toShortdatestring() inside a linq Query in VB.NETGet difference between two datetime values in hoursGet Max value for selected column of each row in LinqGet only one column (full) data in List<string> entity framework?Get the next row in a data tableget the unmatched records from DataTable1 by comparing DataTable2Get total Row count with some condition in EFget value between two numbers using LINQ QueryGetting an error "Sequence contains more than one element"getting array of ID fields in many to many relationship in Entity frameworkgetting error "cannot Implicitly convert type int? to bool"Getting error LINQ to Entities does not recognize the method 'Int64 ToInt64(System.String)' methodGetting error while updating model while change in databaseGetting full recordcount from data adapterGetting last autoincrement ID after a Linq to sql SubmitChanges()Getting specific columns from an INCLUDE statement with EFGetting VP.NET code to respond to SQL Return values and Error CodesGroup by and Order by in the same expressiongroup by date in linqGroup by in DataTable using LINQgroupby and orderby thenorderby - results not as expectedGuid endswith or contains in a where statementGuid to string in LINQ EntityHaving an issue with linq order by with a custom comparer not finishing.Help needed in linq expression and funcHelp on Compilation Error- does not contain a definition and no extension methodHelp with inserting MAX ID into table dynamicallyHow can access db works without installing MS Access on server?How can I filter by date on a string field in entity framework?how can I get number of returned rows by data reader ?how can i get object from iqueryableHow can I groupby and count in ef core linqHow can i handle the Linq error "Sequence contains no matching element"How can I hide certain fields when accessing database from DbContextHow can I insert HTML data in the DB ?How can I load a dynamic database by entity framework core?How can I retrieve the ID of the inserted row using ExecuteScalar function and the SCOPE_IDENTITY() function?How can I return all columns from DataTables using LINQHow can i update a list with new values using Linq ?How can I use AddDbContextPoolHow custom function can be used with LINQ order by clauseHow do i add datatabel to dataset in vb.netHow do I check if my ExecuteScalar() is null?How do I combine 2 lists into one in linq?How do I combine two lists using LINQ?How do I convert OdbcDataReader to DataTable or DataSet?How do I fix this error: ExecuteNonQuery: CommandText property has not been initializedHow do I get column names on datareader loopHow do i insert Data from DataSet/DataReader to a new TableHow do I insert data into a Many - Many Relationship Table?How Do I Select Fields from a Nested ICollection?How do I serialize Entity Framework entities?How do I set default values for a date field using EF and code firstHow do I set Identity seed on an ID column using Entity Framework 4 code first with SQL Compact 4?How do i split ReadAsStringAsync value to list array using linq C#How do I use "less than or equal to" in LINQ-to-SQL?How do I use Multiple DBContext in my Controller ClassHow do I work with an integer value read from a SqlDataReader object?HOW DO YOU ADD MULTIPLE TABLES TO SINGLE DATASET IN ONE SQLCOMMAND CONECTIONHow do you concatenate multiple Lists within a ForEach loop?How do you convert a List to an IQueryable List?How do you determine if a varbinary field is empty?How do you loop through a Entity List and update a columnhow do you scaffold a new table into an existing context withdotnet ef dbcontext``How find name by id use LINQ to EF?how to add datacolumn dynamically in a datatable..??how to add datatable into dataset for particular index of the dataset table?How To add Include to Generic Repository ?How to add multiple data by EF6How to add multiple roles at the same time on a single userhow to alias column in linq to sqlHow to alter table from c#.net codeHow to attach a dynamic table to entity frameworkHow to bind gridview using Entity Framework 6.0?How to call function from LINQ Query Select statement!How to call scalar value function from vb.netHow to Change Date Format in LINQHow to change the column name in gridviewHow to change the database that the entity framework connects to (dev vs. staging server)how to check boolean returned value in a condition in asp.netHow to check if DataTable row is emptyHow to check if entity is null if using singleordefault()?How to check if statement is null in linq sql, then continueHow to check if the tables has rows in Linqhow to check isNull or isDBNull? C#how to check null before linq concat list c#how to check null values using datareaderhow to check user password correct or not using linq to sql in entity framework?how to check var variable is emptyHow to combine multiple IEnumerableHow to combine two data tables based on common data in one row using LINQ ?How to combine two DbContextHow to combine two resultsets into one in LINQhow to compare the structure of two DataTables in C#How to compare two GUIDs in Linq to EntitiesHow to concatenate multiple columns through LINQ for a DatasoucreHow to Concatenate multiple rows into a single row in LINQHow to concatenate string on a server side in Entity Framework core Linq queryHow to concatenate texts in LINQ to SQL?how to connect with odbc connection in vb.netHow to convert a SqlDataReader object to a certain model object?How to Convert Complex Sql Stored procedure into LINQHow to convert DataSet into object?How to convert Datatable columns and rows to List in C#?.. Please help guysHow to convert htmltable to datasetHow to convert Ienumerable to IcollectionHow to convert string datatype column value to DateTime in format dd/MM/yyyy in LINQ query Statementhow to convert string to clob and how to declare clob in C# funtionHow to convert timespan to datetime.How to copy data from one table to another?how to copy one datatable to another datatable using column mappingHow to correctly delete a list of tables in EF Core?How to create a comma separated list using LINQ?How to create a new data table from another data table in c#How to create an upsert methodHow to create DbContext at runtimeHow to create dynamic linq pivot query in C#?How to delete child from children collection of parent in EF core? (removing an orphan?)How to design repository pattern to find data for single column or multiple columnHow to determine version of EF being used in a projecthow to do bulk update using linqHow to do insert/update (merge) operation by EF6how to do null date comparison in linq?How to do return array or list<string> Entity Framework ?how to encrypt and decrypt connection string in case of entity frameworkHow to exclude a class from MigrationHow to exclude columns being updated by Entity FrameworkHow to execute two EF linq query with one db round tripHow to fetch and store single value using EFHow to filter DataTable using LINQHow to find parameters passed in with Linq SQL ToTraceString();How to find specified column and its row value if column name as parameter using LINQ C#how to find the average of columns ina datatableHow to fix: Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints.?how to generate a unique sequence numberHow to get Column names from entity in mvc.How to get all unmatched records from table2 uisng LINQHow to get assembly for System.LINQ.Dynamichow to get column names from linq datasource?How to get count of repeated values in datatable in asp.net.How to Get Max/Min values from multiple columns in single row using LINQ Query.?how to get only time from database ?How to get parent and child using Linq queryHow to get particular datatable from dataset in c#How to get property of anonymous type?how to get row id of a datarowHow to get sum of all parent and child elements in linq?how to get sum using linq in datatable with multiple where condition?How to get the distinct value form DataTable using LINQ?How to get the number of rows selected by a LINQ query?How to get the range of strings between two given string values (A to M) in LINQ?How to get the SUM value of a column using LINQHow to get values from nested DictionaryHow to give a DataTable Name When returning Dataset From a StoreProcedurehow to give alias for column name when fetch data with EFHow to Group by a string value which is combin with comma valule using LINQ in C#How to handle errors in data access layer codeHow to ignore or stop creating table from class EF code firstHow to import LINQ to my project?how to increase value of a field with linq query?How to insert a Parent along with it's children in EF CoreHow to Insert data into table using SqlBulkCopy in c#How to insert multiple values at the same time with sqlcommandHow to insert records in db if is not exists in db with linqHow to Insert Unique Value in Table's column.How to insert update data in multiple table with EFHow to join multiple tables at a time using LINQ to SQL?How to load child collections with filter?How to lock a row /set of rows(IEnumerable) in entity frameworkHow to lock down a record in a database when being updated. I am using entity Framework.how to loop with sqldatareader?How to manually update entity object in .edmx to reflect a new column in the DB?How to obtain a single integer returned from a stored procedure.How to ON UPDATE CASCADEHow to orderby an include entity in Entity FrameworkHow to pass multiple parameters with SQLHow to pass string values to parameterized sql query in Clause?How to pass the DataTable from one method to another in the same class...How to put where condition in sum function in LINQHow to query multiple Data or fields from repository patternHow to query the multiple parameters at a time in entity framework?How to read a datatable rowsHow to read data from database and store it in arrayhow to read data from SQLDATAREADER when it contains only single record?How to read the first column value from Datarowhow to remove Time in dateTime using linq?how to replace single quotes in a datatableHow to resolve the error 'System.Int32' type to the 'System.String' type is not valid in mvc api ?How to retrieve just a single column in Entity Framework 4How to retrieve values from a dataset VB.netHow to retutn query results from IQueryableHow to see EF SaveChanges() generate what sqlhow to see sql generated by LINQHow to Seed a Many to Many in EF Code FirstHow To Select Distinct Using Partition By With An Inner JoinHow to select distinct value in dropdownlist?How to select multiple columns that not using in group by?how to select parent and children in one select using entity framework in a self related tableHow to select some specific column in Lambda Expression LINQ in Entity frameworkHow to select specific column form DataTable Using Linq?How to Select Top 1 row from Data setHow to set a bit to NullHow to show customer data and order count using LINQhow to solve this: DataSet does not support System.Nullable<>.How to specify -verbose flag to update databasehow to store a dataset to an arrayhow to store Max value of table in database to a C# variablehow to sum a column in entity frameworkHow to update a .dbml fileHow to update entity without fetching it firstHow to update field without loading entire entity?How to update modified fields onlyHow to update single field with EFHow to update table without primary key using EF?How to use Aliases in DataSet?How to use Between operator in linqHow to use distinct on one column in linq?How to use dt.Rows.Cast<System.Data.DataRow>().Take(n)How to use enums in tables in entityframework core?How to use like operator in Linq QueryHow to use skip and take in DatatableHow to use split in linq query?How to use SqlBulkCopy with Entity FrameworkHow to use Transactions in ASP.NET MVC identity 2?how to work with temporry table in linqHow to write a Linq 'Where' clause for nullable datetime?How to write SQL "not exists" in LINQhow to write subquery inside lambda expression..?How to write unit test code for my ADO.Net based repository from VS2013I can't add a table to entity data modelI Can't create a migration identityI get error when I do update-databaseI upgraded Entity Framework from 6.0.0 to 6.1.3 and got the error "Could not load type 'System.Data.Entity.Infrastructure.TableExistenceChecker' from assembly 'EntityFramework, Version=6.0.0.0"I want to merge cells of same value in the first column in itextsharp for asp.netif (string.IsNullOrEmpty to intIf Else in LINQif statements within Linq query?Ignore DbSet property of DbContext base classignore duplicates while bulk insert on c# data tableimplement cross apply in linqimport excel file to sql server asp.net + vbImport Excel to database MVC 5 / HttpPostedFileBase ContentLength always ZeroIndex was outside the bounds of the array.Inline if check in Linq? (Best practice)Input string was not in a correct format.insert a collection of entities to table if not exists (entity framework-linq)Insert a null string value into an SQL databaseinsert for many to many relation in entity frameworkInsert Single Quote seeded data through EF in migration ScriptInsert, Many-To-Many, Entity FrameworkInserting data in multiple tables C#Inserting multiple rows into table using the Entity FrameworkInstance failure Error at connection open- [
Invalid cast from 'System.DateTime' to 'System.Nullable1[[System.DateTime, System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=xxxxxx]]](/archive/msdn-technet-forums/40502396-e787-4878-ba3d-b5d253eb715c "Invalid cast from 'System.DateTime' to 'System.Nullable1[[System.DateTime, System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=xxxxxx]]") Invalid column name 'UserId'.Invalid column name Discriminator, in Code FirstInvalid object error in EFInvalid object name 'tableName'Iqueryable support lazy loading howIs EF STILL slower than ADO.NET and DAPPER ?Is it possible to pass model in stored procedure calling from LINQIs it Possible to Replace all Null/Blank Values in DataTable with some default Value using Linq and without LoopingIs it possible to use single dbcontext file for multiple schemas of oracle database?Is LINQ case sensitive on joinsIs there a way to defined .Where inside .IncludeIs there a way to get a link query to return a row from a table?is there a way to update a column for all rows in a collection using linq?Issue with contains and GetValueOrDefaultJoin 2 tables in one to many relationship without duplicatesJoin 2 tables on different databasesJoin Multiple table with Multiple Condition in LINQJoin three tables using LINQ QueryJoin two tables (One to Many) using Web APIJoin two tables and sum a certain colum with linq to sql c#json parse erorJSON_Value error: The argument 2 of the “JSON_VALUE or JSON_QUERY” must be a string literal (SQL 2016)Lambda Expression Breaks if Values are NullLambda expression check if Todays date is between 2 dates in databaseLambda Expression with Not In clauseLambda Sort with nulls LastLast 3 Records In SQLLeft and right outer join by LINQLeft outer join multiple tables on multiple fields in Linqleft, right join in linq or lambdaLing to Sql OR stored procedures In Generics Repository for database interaction?LINQ - Cannot cast DBNull.Value to type 'System.Double'. Please use a nullable type.Linq - Contains in a select statementLINQ - Exclude from a list objects that not satisfying a conditionLinq - how to add case when?LINQ - How to Check only matching string based on conditions in LINQ QueryLINQ - How to search list values from another multiple list.Linq - rounding up the average?- [
Linq "Unable to create a null constant value of type 'System.Collections.Generic.List1"](/archive/msdn-technet-forums/ac63f9da-4a4f-4bae-a883-ba3bcaa9f3c5 "Linq 'Unable to create a null constant value of type 'System.Collections.Generic.List1'") linq and max, if return null return errorLINQ and Recursive CTE and Windows FunctionsLINQ columns select based on if conditionLINQ compare list<int> in list<int>Linq Convert DateTime? to DateTime in ("dd/MM/yyyy")LINQ filter by month and yearLINQ filter child collectionLINQ FirstOrDefault is not returning Null if no values are foundLinq FromSqlRaw - Data is Null. - Comments Field Varchar NullLinq GroupBy and Sum - .First() could not be translatedlinq help to get record with the latest dateLINQ if statement inside select new queryLINQ Include() method nullifies whole queryLINQ Inner join return classLinq join with if statementLinq Lambda join returning duplicate recordsLINQ lambda to filter the value from the List or DictionaryLINQ left outer join null questionlinq multi keyword search to match any of the keywordLinq Order By Date not returning expected resultslinq prevent sql injectionLinq query against string array or listLinq query for multiple grouping and sum in vb.netLinq query not ordering alphabeticallyLinq query returns only the first sequence in a list in C#Linq Query to Extract Detail from multiple rows of same ID from one tableLINQ query to get column count (number of columns)Linq Query To get CountLINQ Query to get the Not null ValuesLINQ query to get the top 1 from each group by first datelinq query with a dynamic variable in the where clauseLinq result fails when checking for null value for column.Linq Search more than one column in database tableLinq search on integer and nameLINQ select distinct c#LINQ select entire employee for employee Age is maximumLINQ Select Row with Max date per categoryLINQ Selecting multi tables without Join?linq statement for filtering Enumeration by List of stringsLinq String CompareLinq to check boolean result in table and return true or false (3 tables join)LINQ to Entities .Join with multiple conditionsLINQ to Entities does not recognize the method '' method, and this method cannot be translated into a store expression.linq to entities does not recognize the method 'system.datetime todatetime(system.string)' methodLINQ to Entities does not recognize the method 'System.Object get_Item(System.String)' method, and this method cannot be translated into a store expression.Linq to entities update joined tableLINQ to get total counts from linked tablesLINQ to retrieve the number of users registered per monthLINQ to SQL - split string field by space character?Linq to Sql ( Select A random Row)LINQ to SQL Insert into select whereLINQ to SQL IQueryable date filter with "Contains"LINQ to SQL join 3 tables and select multiple columnsLINQ to SQL join 3 tables and select multiple columnsLinq To Sql Join ContainsLinq to SQL join on two columnsLINQ to SQL query with SingleOrDefault() returning first record not default item when record not found.Linq to SQL returns null for DateTime fields.Linq to Sql ToList() or Count() of IEnumerable timeoutLinq to sql using distinct on individual valuesLinq to SQL within a Foreach loopLINQ to SQL; Distinct, Take and OrderByDescendingLINQ to SQL: Generic OrderByLinq Update List marking duplicates based of a columns in the list .Linq where and nullable int columnLINQ Where Case StatementLinq Where Clause (on class that has an [array])LINQ Where DateTime Contains StringLinq with Count and Group ByLinq: multiple sub joins or sub-queriesLoad Data FastLoad Entity data model from xmlLocal sequence cannot be used in LINQ to SQL implementations of query operators except the Contains operator.Loop through each item in a datasetLooping through DataSet in C#Looping through SqlDataReader resultsMake linq case insensitiveMany to many relationship with ASP.NET Identity Table and Custom TableMap Stored Procedure Column names to POCO / DTOMaximum length of string which can be returned from stored proc in SQL Server 2008 to .net appsMaximum Number of Retries ExceededMicrosoft.Data.SqlClient.SqlTransaction.ZombieCheck() with EF CoreMigrations - 'PK_dbo.products' is not a constraint. Could not drop constraint. See previous errors ?Model navigation property returns null value in my asp.net core project.Model.context.tt and Model.tt is missingMore than one migrations configuration type was found in the assembly 'SMSApp'. Specify the name of the one to use.MSDTC on server is unavailable.MSSQL converting string to uniqueidentifierMultiple join in Method syntaxMultiple On Conditions in LINQ Left JoinMultiple Relationships/Foreign Keys Between Two Tables (in Classes)Must declare the scalar variable "@p0".MVC Where IN clause for Entity FrameworkMy Context does not inherit from DbContext in Entity Framework CoreMy Model.tt related classes did not get updated when i chose to update my .edmx file from databaseNeed help in FromSQL sql Query not working with Unittest casesNeed help on LinQ query left joins and multiple fieldsNeed my EF core to see already existing primary key in my SQL server table and work with it.Need some info about MapLeftKey and MapRightKeyNeed to add hard coded values to LINQ query resultNeed to get distinct rows from Data Table.Nested Include in EF 6Nested Select in LINQ using Lambda expressionNew Tables does not show up in Add tab in Entity Model Update Wizard.Newbie Question: Cannot Implicitly convert type 'object' to 'int'Nhibernate Mapping exceptionNHibernate - Could not compile the mapping documentNHibernate - could not execute query ErrorNHibernate : How to get NOLOCK equivalent facility while reading dataNHibernate problem - Could not delete collection: Cannot insert the value NULLnHibernate: Illegal attempt to associate a collection with two open sessionsNo column name was specified for column 1 of 'T'.No Entity Framework provider found for the ADO.NET provider with invariant name 'System.Data.SqlClient'.No Entity Framework provider found for the ADO.NET provider with invariant name 'System.Data.SQLite'. Make sure the provider is registered in the 'entityFramework' section of the applicationNo Overload Method for Join takes 4 argumentsNumber of rows returned by a DataReaderobject reference not set to an instance of an object all left joins with linqOne to many relationship without foreign keyOperator '=' incompatible with operand types 'Guid' and 'Int32Operator '==' cannot be applied to operands of type 'long' and 'System.Linq.IQueryable<AnonymousType#1>Optimizing Linq Group By (large data set)Optional Parameters in EntityFrameWork queryORA-00933: SQL command not properly ended in C#Oracle Connection issue in VIsual StudioOracle.DataAccess.Client.OracleConnection ExceptionOrder by bool in LINQ syntaxorderby clause doesn't workOrderBy Descending Multiple ColumnsOrderByDescending in ENTITY framework query?Output parameter from SP inside async methodParameterized query which was not supplied??Partner transaction manager has disabled its support for remote/network transactionsPass Linq results to another functionPass list object to web servicePass null values to oracle parameter in C#Passing DataTable as session variablePassing DataTable to Stored ProcedurePassing Date Parameter as SqlCommand Parameter in C#Passing Null values in to stored procedure in Entity FrameworkPassing value to SQL query parameter from my textboxPerformance of DataReader vs DataAdapter for retrieving dataPopulate a DropDownList from Code Behindpreventing duplicate records being returned from linq to sql queriesProblem in updating stored procedure or table in EF data modelProblem with linq distinct and sort/order byProblem with Null values in DataViewproblem with the entityProblems converting string to date LInq Entity FrameworkProcedure or function expects parameter '@parm', which was not suppliedProcedure returning value but code returning nullps1 cannot be loaded software restriction policiesquery error when using .Include / .ThenIncludeQuerying an entity with Linq with name based on a stringRaw Sql Query EF - How to pass list of string parameter to In ClauseREMOVE ROW FROM DATATABLE USING LINQRemove() doesn't work with many-to-many relationship in Entity Framework 4Removing Duplicates From DataTable, specific columns used as keysreplace datatable column nameReplace special character in datatable rowsRepository pattern and retrieving data from multiple tables?Retrieve multiple values using join in LINQRetrieve random recordsretrieve value from datatable to a string in c#return a string value from stored procedureReturn Object from Linq Query?Return value from EF Stored ProcedureReturn Value from Stored Procedure in c#S1928: 'System.Linq.IQueryable<AnonymousType#1>' does not contain a definition for 'Concat' and the best extension method overload 'Save multiple parent child record in foreach loop (Multiple added entities may have the same primary key.)Save value type Decimal from VB.Net to SQL Server DBSaveChanges() does not commit changes to the Database; Entity FrameworkSaveChanges() has no effect in the DatabaseSaving many objects in db with Entity Framework (EF) takes too longscalar function entity frameworkSearch data in a database with using textboxsearching by multiple values....Select Case in linq querySelect Distinct 1 Field and include other fields in LINQSelect Distinct from multiple tables linq to sqlSelect Distinct MVC LinqSelect multiple column with sum and group by more than one column using lambdaSelect one recent row for that record with group by two columnsSelect Query to get records within last 24 hours in NhibernateSelect where not existsselecting distinct values without case sensitiveselecting records given with a array using LinqSelecting top 5 rows from a datatableSelf Join using EF and lambda expressionSelf referencing foreign keys in EF Code FirstSet Command timeout in NHibernateSetting DataTable fields to nullShares DbContext for multiple threadsSimple linq foreach dataColumn in a dataTableSimple Linq To SQL query fails with invalid column namesSimple SELECT statement using ADO.NETSorting on a calculated field in Entity FrameworkSpecified Cast is not validSpecified cast is not valid during using LINQSpecify table field size for Int in EF Code First modelSplit a dataTablesplit one datatable into multiple datatable based on valuesSQL connection string ignoring specified username & password?SQL Dapper UNION extension method.SQL Injection-- Parameterize the IN clauseSQL parameter : {"String[1]: the Size property has an invalid size of 0."}SQL Query :Pass string variable to SQLSQL query built using input coming from an untrusted sourceSql to Check a condition before making an insert (Stored Procedures pls)SqlBulkCopy error The given value of type String from the data source cannot be converted to type int of the specified target columnSqlClient vs Entity Framework vs LINQ to SQLsqlCmd.ExecuteReader() starts taking more and more time after 100 iteration inside foreachSqlConnection vs IDbConnectionSqlDataReader data is returning nullSqlDependency Start ExceptionSqlException (0x80131904): Invalid column nameSQLite datatime with .net C#SQLite Error 1: 'default value of column [Name] is not constantStore procedure gives null values to model class propertiesStored procedure and decimal/doubles (C#)Stored Procedure with multiple Parameters as GUIDStored procedure with temporary table in Entity frameworkStrange Behavior with ODBC :: ERROR [IM014] [Microsoft][ODBC Driver Manager] The specified DSN contains an architecture mismatch between the Driver and ApplicationString or binary data would be truncated. The statement has been terminated.String to ClobString with Comma find DISTINCT Using LINQstring.format for insert commandSubtract the values of two columns in LINQSuddenly a lot of SQL Errors (EF6)Sum and Case to linqSum column with Linq to sqlSystem.ArgumentNullException: Value cannot be null. Parameter name: entitySystem.Collections.Generic.List<OnlineStore.Models.SliderImages> does not contain a definition for FirstOrDefaultSystem.Data.DataTableCollection.get_Item(Int32 index) ExceptionSystem.Data.Entity.DbSet<Entities.User>' does not contain a definition for 'FirstOrDefault'System.Data.SqlClient.SqlException (0x80131904): Login failed for userTables will not be generated but database does. What am I do wrong? Plus get this error: SqlException: Invalid object name 'Products'Textarea Preserve LinebreaksTextFieldParser ignoring header rowThe ADO.NET provider with invariant name 'System.Data.SqlClient' is either not registered in the machine or application config file, or could not be loaded.The argument types 'Edm.Int32' and 'Edm.String' are incompatibleThe cast to value type 'Int32' failed because the materialized value is null.The changes to the database were committed successfully, but an error occurred while updating the object contextThe connection string 'EFDbContext' in the application's configuration file does not contain the required providerName attribute."The connection was not closed. The connection's current state is open.The ConnectionString property has not been initialized. URGENTThe conversion of a datetime2 data type to a datetime data type resulted in an out-of-range value ErrorThe conversion of a datetime2 data type to a datetime data type resulted in an out-of-range value.The data reader is incompatible with the specified 'QuestionModel.sp_userQuestion_Result'. A member of the type, 'ID1', does not have a corresponding column in the data reader with the same nameThe data reader is incompatible with the specified modelThe data reader returned by the store data provider does not have enough columns for the query requested.The data types ntext and nvarchar are incompatible in the equal to operator.The EF Core tools in error when create the migrationThe Entity Framework provider ... could not be loadedThe entity or complex type cannot be constructed in a LINQ to Entities query.The entity type 'UserRole' was not found. Ensure that the entity type has been added to the model.The entity type does not declare a navigation property with the nameThe entity type is not part of the model for the current contextThe EntityFramework package is not installed on projectThe FunctionImport 'SP1' could not be found in the container 'MyContext'.The instance of entity type cannot be tracked because another instance with the same key value for {'ID'} is already being tracked.The mapping of CLR type to EDM type is ambiguousThe method 'OrderBy' must be called before the method 'Skip'The Microsoft Distributed Transaction Coordinator (MS DTC) has cancelled the distributed transaction.The model item passed into the dictionary is of type 'System.Data.Objects.ObjectQueryThe number of properties in the Dependent and Principal Roles in a relationship constraint must be identical.The object cannot be deleted because it was not found in the objectstatemanagerThe property "id" is part of the object's key information and cannot be modifiedThe recommended of Max Pool Size on 10000 concurrent userThe seed entity for entity type 'UserName' cannot be added because there was no value provided for the required property 'NameId'.The specified type member 'Date' is not supported in LINQ to Entities. Only initializers, entity members, and entity navigation properties are supported.The type or namespace name 'Core' does not exist in namespace 'System.Data.Entity'The underlying provider failed on CommitThe wait operation timed outThe wait operation timed outThere is already an object named 'AspNetRoles' in the database.There is already an open DataReader associated with this Command which must be closed firstThere is already an open DataReader associated with this Connection which must be closed first.This SqlTransaction has completed; it is no longer usable.Throwing Errors System.InvalidOperationException No service for type and System.Exception Could not resolve a service of typeTimeout error in executing linq queryTransfer/Read Column Names in a FoxPro .dbf file in C#Trim string in LINQ QueryTrim trailing spaces from retrieved strings in EF CoreTrying to do migration in my asp .net Entity Framework core web application but getting following error.Two migration sets with two DBContext generate an errorUnable to add stored procedure in entity frame work in asp.net- [
Unable to cast object of type 'System.Data.Linq.DataQuery1[Customer]' to type 'System.Data.DataSet'.](/archive/msdn-technet-forums/bcf92f17-6899-4dc0-9b67-84279709e82e "Unable to cast object of type 'System.Data.Linq.DataQuery1[Customer]' to type 'System.Data.DataSet'.") - [
Unable to cast object of type 'System.Data.Objects.ObjectQuery1[<>f__AnonymousType03[System.String,System.String,System.String]]' to type 'System.Collections.Generic.List1[ProductsEntities.dp_Products]'.](/archive/msdn-technet-forums/d0214a3e-051e-458e-bc70-915392253103 "Unable to cast object of type 'System.Data.Objects.ObjectQuery1[<>f__AnonymousType03[System.String,System.String,System.String]]' to type 'System.Collections.Generic.List1[ProductsEntities.dp_Products]'.") Unable to cast object of type 'System.Double' to type 'System.String' in LINQUnable to cast object of type 'System.Guid' to type 'System.String'.Unable to cast object of type 'System.String' to type 'System.Nullable'Unable to cast the type 'System.Int32' to type 'System.Object'. LINQ to Entities only supports casting EDM primitive or enumeration types.Unable to create a constant value of type .Only primitive types or enumeration types are supported in this context.Hybrid DictionaryUnable to create a constant value of type ''. Only primitive types or enumeration types are supported in this context.Unable to create a constant value of type 'System.Object'. Only primitive types or enumeration types are supported in this context.Unable to determine the relationship represented by navigation propertyUnable to determine the relationship represented by navigation propertyUnable to load the specified metadata resource : Entity FrameworkUnable to seed data, getting error message: The seed entity for entity type 'Logs' cannot be added because another seed entity with the same key value for {'LogsId'} has already been addedUnable to update the EntitySet 'Student' because it has a DefiningQuery and no <InsertFunction> element exists in the <ModificationFunctionMapping> element to support the current operation.- [
Unable Unable to cast object of type 'System.Data.Linq.DataQuery1[System.Nullable1[System.Int32]]' to type 'System.Linq.IQueryable1[System.Int32]'.](/archive/msdn-technet-forums/f8b122c9-8238-4078-8c6a-6607e68497f4 "Unable Unable to cast object of type 'System.Data.Linq.DataQuery1[System.Nullable1[System.Int32]]' to type 'System.Linq.IQueryable1[System.Int32]'.") Unexpected end of file while parsing Name has occurred, when reading xml fileUNIT OF WORK & REPOSITORY PATTERN & ADO.NET STORED PROCEDURESUnit Testing Entity Framework can't find connection stringUpdate a single column value from a record within the dbupdate a single table in edmx fileupdate dictionary value by LINQUpdate Gridview using dropdownlist Selected Value in Edit templateUpdate in Generic Repository with Entity FrameworkUpdate model from Database per .edmx doesn't update model/cols if deleted from database?update on Entity framework is not workingUpdate Query in LinqUpdate Record based on WHERE clause in Entity Framework 6Upload and download a zip file from SQL databaseUploading excel data to sql database in asp.net applicationUsing COALESCE in LINQ - SQL conversionUsing columns not defined in model with Entity Framework Core in ASP.NET Core 5Using EF as scoped service throws exception "A command is already in progress"Using EF Core entity if child view also exists throws errorUsing Linq Error: Could not find an implementation of the query pattern for source type'blah blah'.'Join not foundUsing Linq extensions to group DataTable by multiple columns with multiple sumsUsing long for primary key instead of intUsing SqlDataAdapter To Insert/Update/Delete RowsUsing variable table name in 'LINQ to SQL'Using Where clause before select in LINQValidation failed for one or more entities. See 'EntityValidationErrors' property for more details.Value cannot be null. Parameter name: keyVisual Studio can't load MySql.Data.EntityFrameworkwant to give table name dynamically in linqWas Active Record the inspiration for Entity FrameworkWhat is DbContext and DbSet in EF ?What is default IsolationLevel for TransactionScope?what is default location of localdb created by EFwhat is difference between any and existWhat is difference between StringLength and MaxLength AttributeWhat is the best way to open/maintain connection to database in loop?What is the difference between Find and whereWhat is the difference between normal DbContext and IdentityDbContext classWhat is the difference Between SqlCommand and SqlDataAdapterWhat is the fastest way to get datawhat is the order of exeution in linq.What is the usage of context.Entry in EFWhat is the use of EntityBase class in Generic Repository?What is this style of Linq? ((p) => p.Id == id)What is wrong with my queryWhen I try use .include() to include just 1 field from foreign table EF gets madWhich is best LINQ or SQL queries?white spaces are being added to my database tableWhy change in CommandTimeout not workingWhy does my web application hang up on "await _context.SaveChangesAsync();"Why does Remove() not delete objects from the database?Why ICollection and Virtual keyword is used in EFWhy is there no .AddRange() method for System.Data.Entity.IDbSet<T>?- [
Why This Nonsense?? : System.Data.Entity.Core.Objects.ObjectResult1[Some Stored Procedure]] List](/archive/msdn-technet-forums/3a189c92-caac-4e54-a757-a35a22f33981 "Why This Nonsense?? : System.Data.Entity.Core.Objects.ObjectResult1[Some Stored Procedure]] List") Wierd Problem while trying to retrieve data?Writing Parent and Child data at the same time.