bool flag = false;

        private void Form1_MouseDown(object sender, MouseEventArgs e)

        { 

            flag = true;

        } 

        private void Form1_MouseMove(object sender, MouseEventArgs e)

        {

            //Check if Flag is True ??? if so then make form position same

            //as Cursor position

            if (flag == true)

            {

                this.Location = Cursor.Position; 

            }

        } 

        private void Form1_MouseUp(object sender, MouseEventArgs e)

        {

            flag = false;

        }

Another way is to TRICK WINDOWS MANAGER into thinking that it is grabbing title bar of the Windows form.

publicconstint WM_NCLBUTTONDOWN =0xA1;

publicconstint HT_CAPTION =0x2;

[DllImportAttribute("user32.dll")]publicstaticexternintSendMessage(IntPtr hWnd,intMsg,int wParam,int lParam);

[DllImportAttribute("user32.dll")

]publicstaticextern bool ReleaseCapture();

privatevoidForm1_MouseDown(object sender,System.Windows.Forms.MouseEventArgs e){

if(e.Button==MouseButtons.Left){ReleaseCapture();SendMessage(Handle, WM_NCLBUTTONDOWN, HT_CAPTION,0);}

}

• Precompiled execution: SQL Server compiles each Stored Procedure once and then re utilizes the execution plan. This results in tremendous performance boosts when Stored Procedures are called repeatedly.
• Reduced client/server traffic: If network bandwidth is a concern in your environment then you'll be happy to learn that Stored Procedures can reduce long SQL queries to a single line that is transmitted over the wire.
• Efficient reuse of code and programming abstraction: Stored Procedures can be used by multiple users and client programs. If you utilize them in a planned manner then you'll find the development cycle requires less time.
• Enhanced security controls: You can grant users permission to execute a Stored Procedure independently of underlying table permissions.

I executed below command and was not able to resolve the issue.

I downloaded WMI Diagnosis utility(https://www.microsoft.com/en-in/download/details.aspx?id=7684)  and diagnosed WMI service and found following connection errors but no luck.

After some research, I was able to resolve by 

1. Stop WMI service

2. Navigate to the folder “C:\Windows\System32\wbem” and rename the repository folder to repository_old

After executing above command, I was able to open Sql Server Configuration Manager.

Two things are important. Check the following:

1. That your project properties are referencing .NET Framework 4 or higher (if that is not the case, change it: Right click on the project, select the "Properties..." menu item, then select as target framework ".NET Framework 4" (or higher))
2. That you have added the "Microsoft.CSharp" assembly as reference (note that step 1., which requires to re-load the project, must be done before you can do that)

Afterwards you can use the dynamic type. The reference needs to be added in the selected project or in the startup project in order to become available in the immediate window's scope.

you can add any no of extensions to above regex expression.

How to use check is a filepath is matching with regular expression.

if(Regex.IsMatch(filePath, @"^(?:[\w]\:|\\)(\\[A-Z_\a-z_\-\s0-9\.]+)+\.(txt|gif|pdf|doc|docx|xls|xlsx|mht|pptx|ppt)$"))

{

// put your code here

}

DECLARE @Date DATETIME,@Cast VARCHAR(20),@FilePath VARCHAR(100)
SELECT @Date= (GETDATE())
EXECUTE master.dbo.xp_delete_file  0 , N'\\FilePath\' , N'bak' ,@Date , 0

GO

The above command will delete the .bak files which are created before @Date

Today we ll see how to create a SQL table schema based on flat files(excel, csv, txt formats).

Steps:

1. Create a datatable and load data into datatable from a flat file.

2. Read each coloumn from datatable and set its data type, length and other configurable properties.

3. Convert C# data types to SQL DB data types.

4. Create a table in a Database (This part is out of scope) of this post.

We will do this step by step.

 Step 1: Create a datatable and load data into datatable from a flat file

DataSet ds = new DataSet();
string strConnString = "Driver={Microsoft Text Driver (*.txt; *.csv)}; Dbq="+filePath+"; Extensions=asc,csv,tab,txt;Persist Security Info=False";
string sql_select;
OdbcConnection conn;
conn = new OdbcConnection(strConnString.Trim());
conn.Open();

//Creates the select command text

sql_select = "select * from ["+filename+"]";

//Creates the data adapter
 OdbcDataAdapter obj_oledb_da = new OdbcDataAdapter(sql_select, conn);

//Fills dataset with the records from CSV file
obj_oledb_da.Fill(ds, "csv");

 return ds.Tables[0];

Step 2 & 3: Create SQL table Schema for the above datatable

 public static string CreateSqlTableFromDataTable(string tableName, DataTable table)
        {
            string sql = "CREATE TABLE [" + tableName + "] (\n";
            // columns
            foreach (DataColumn column in table.Columns)
            {
                sql += "[" + column.ColumnName + "] " + SQLGetType(column) + ",\n";
            }
            sql = sql.TrimEnd(new char[] { ',', '\n' }) + "\n";
            // primary keys
            if (table.PrimaryKey.Length > 0)
            {
                sql += "CONSTRAINT [PK_" + tableName + "] PRIMARY KEY CLUSTERED (";
                foreach (DataColumn column in table.PrimaryKey)
                {
                    sql += "[" + column.ColumnName + "],";
                }
                sql = sql.TrimEnd(new char[] { ',' }) + "))\n";
            }
            else
                sql += ")";
            return sql;
        }

-------------------------------------------------------------------------------

public static string SQLGetType(DataColumn column)
{
return GetSqlType(column.DataType, column.MaxLength, 10, 2);
}

------------------------------------------------------------------------------

public static string GetSqlType(object type, int columnSize, int numericPrecision, int numericScale)
        {
            switch (type.ToString())
            {
                case "System.Byte[]":
                    return "VARBINARY(MAX)";

                case "System.Boolean":
                    return "BIT";

                case "System.DateTime":
                    return "DATETIME";

                case "System.DateTimeOffset":
                    return "DATETIMEOFFSET";

                case "System.Decimal":
                    if (numericPrecision != -1 && numericScale != -1)
                        return "DECIMAL(" + numericPrecision + "," + numericScale + ")";
                    else
                        return "DECIMAL";

                case "System.Double":
                    return "FLOAT";

                case "System.Single":
                    return "REAL";

                case "System.Int64":
                    return "BIGINT";

                case "System.Int32":
                    return "INT";

                case "System.Int16":
                    return "SMALLINT";

                case "System.String":
                    return "NVARCHAR(" + ((columnSize == -1 || columnSize > 8000) ? "MAX" : columnSize.ToString()) + ")";

                case "System.Byte":
                    return "TINYINT";

                case "System.Guid":
                    return "UNIQUEIDENTIFIER";

                default:
                    throw new Exception(type.ToString() + " not implemented.");
            }
        }

---------------------------------------------------------------------------------------------------------------

string SQL from step2 will return the table schema.