DataGridView WinForms Auto Reload/Update/Refresh

Question

I have a windows form with a DataGridView control.

I bound it into an attached DB file (.mdf).

I perform insertion by generating a dynamic Insert st

Answer 1

You must specify a procedure or function to be responsible for reloading data, you can use to make a new call to the methods that you use to load data to datagrid.

Public Sub InsertRow(ByVal param1 As String, ByVal param2 As String, ByVal param3 As String)

    Dim strConn As String = (the connection string)
    Dim sqlConn As New SqlConnection(strConn)

    Dim insertSQL As String = "INSERT INTO theTable VALUES ('" + param1 + "', '" + param2 + "', '" + param3 + "', '" + DateTime.Now + "', '" + DateTime.Now + "')"
    Dim comm As New SqlCommand(insertSQL, sqlConn)
    sqlConn.Open()
    comm.ExecuteNonQuery()
    sqlConn.Close()
    ReLoadData(grid)
End Sub

Private Sub btnInsert_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnInsert.Click

    InsertRow("a","b","c")

End Sub

Private Sub ReloadData(ByVAl sender as DataGridView)
 ' Implement your data load function
 ' I use for example
  sender.datasource = GetTable() 'GetTable is a function that return a DataTable Object With my data 
  sender.DataSource = Nothing    'Free the DataGridView DataSource property for enable row edition.

End Sub