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How I can do raw query in jquery datatable to acces to the files from sqlserver file table?
Hi, I have an asp.net core 5 application that displays the entire sqlserver file table content. My question is : How can open the file in colunm Name? I would like to modify the code below (extract from jquery-datatable-in-aspnet-core …
ASP.NET CORE server side processing to acces to the files stored in FILE TABLE ?
Hi, first I want to create an ASP.NET core application linked to the FILE TABLE to open the files directly in my interface After several attempts I was able to implement in my interface the links of my files to be able to consult them. In the FILE…
JsonConvert System.ArgumentNullException : 'Value cannot be null. Arg_ParamName_Name'
Hi, I tried to do the tree view structure. The code behind is public string TreeViewJSON { get; set; } public void OnGet() { List<TreeViewNode> nodes = new List<TreeViewNode>(); …
I am looking for updates for .NET 4.5.x (i.e. 4.5, 4.5.1 and 4.5.2) for Win 10 IoT Enterprise 2019 LTSC
Hi I am working on a legacy application and need to find updates for .NET 4.5.x (i.e. 4.5, 4.5.1 and 4.5.2) for Win 10 IoT Enterprise 2019 LTSC. Kind regards


Execute task in an already existing thread
Hello, I would like to execute a task on an already existing thread. How can I tell the task to use this specific thread? I saw there is a task scheduler available in .net but if this would be the vehicle to implement I have no glue how to do…


Excel row height logic calculation
Using C# and OpenXML, given a font name and its height, I need to calculate the exact row height in pixels in order to draw an Excel spreadsheet in a CAD software. What I have done so far: I have been able to accurately calculate a column width given…


Please HELP! performance in C#
HI All, I've migrated a VB.Net code to C# and will working very well, the performance of the C# code is really awful, about 5 times slower than its VB.Net counterpart. Granted, I've made some changes, from Modules to Classes, and from ByRef to ByVal, and…


API to connect a FileTable in Blazor Wasm
Hi, I've created a Filetable via SqL server 2019 to have an architecture of the file (quantities 100 000 files). I would now like to display my database file on a razor page to open the files directly from my interface. Is this possible? Do you have…
Databindings are not working
I have made a small Project where I have a wcf service and an wpf app to look up weather data in between certain dates. At first, everything was fine, but when I used Databindings, the Datagrid stayed emty. Can someone help me? //WCF interface: public…


About the IIS site request queue length?
OS: Windows Server 2016 Standard IIS: Version 10.0.14393.0 Web Sites: WebIISQueueTest .NetFramework4.5 Asp.net mvc Question 1: By which performance counter does the site's request queue length be monitored? Question 2: The request queue…


Still having big problems with Object reference not set to an instance of an object in my solution but have nailed it down.
Hi I get the above error and when removing all try/catch stack trace sais the problem is in the method Conn in my Helper Class in the DAL project. using System; using System.Configuration; namespace DAL { public class Helper { …


Creating an multidimensional array of measurement files dynamically
Hello All, I want to create an app for reading multiple measurement files. First of all I don't know how many files I will get. I also don't know how many measurement points one file has. The situation could be as follows: I have 7 measurement…


C# Task - LazyAsyncResult - NullReferenceException
There is something wrong with the following method: public async Task<ExtendedProductDTO> GetProductByUniqueIDAsync(string id) { var product = await _productRepo.FindFirstOrDefaultAsync(i => i.UniqueID ==…


How to target .NET 6.0 with Visual Studio 2019?
Hello: I know .NET 6.0 is released, but I don’t know how to create a WinForm App targeting .NET 6.0 with Visual Studio 2019 (Version 16.11.5) on Windows 10 (Version 21H1) I can download the following packages: .NET 6.0 SDK (v6.0.100) - Windows x64…


Need a query builder for Deleting specific Rows
Need a query builder for BulkDeleting specific Rows by using SqlBulkCopy. List<Part> parts = new List<Part>(); parts.Add(new Part() { PartName = "crank arm", PartId = 1234 }); parts.Add(new Part() { PartName = "chain…
Windows Server 2012 R2 TLS 1.2 Cipher Suites
Hello - I have a .Net application that accesses an external website to retrieve data. The external website removed TLS 1.1 support and only supports the following TLS 1.2 cipher suites: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384…


SQL Server Management Studio - Create queries, Export, Import
Hello, What is the best way to create a SQL query with the studio? Is there a wizard similar to Office Access? I have a data model with primary key, foreign key. Can I have the complete database model displayed visually? If yes how? I have to fill the…


JsonSerializer throws exception in xamarin.ios
While in android everything works fine (as most times), in iOS this line var payload = System.Text.Json.JsonSerializer.Serialize(postData); throws an exception: System.TypeInitializationException: The type initializer for…


How to create a .NET 5.0 Console application in Visual Studio 2019
I have Visual Studio 2019 Community, version 16.8.3. How do I use it to create a .NET 5.0 Console application without editing the project file? If I choose the Console .NET Core template, it creates a project file targeted for .NET Core 3.1…


How to implement trigger on File Table in Sql ?
Hi, How can I implement a trigger on the file table to insert rows in the document table eg strem_id? The simple table call FileDescriptions and is defined as below : public class FileDescription { public int Id { get; set; } …