DataGridTextBoxColumn.EnterNullValue Method ()

 
Use BaseTrue

Enters a Value in the column.

Namespace:   System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

protected internal override void EnterNullValue()

Enters the NullText value into the cell.

The following example tests a DataGridColumnStyle to determine its column type. If the column is a DataGridTextBoxColumn, and the DataColumn allows null values, then the NullText property is set and the EnterNullValue method invoked.

Public Class Form1: Inherits Form

Protected dataGrid1 As DataGrid


Private Sub SetNullText()
   Dim dgeCol As MyGridColumn
   ' Assumes a column named Status exists.
   dgeCol = CType(DataGrid1.TableStyles("Customers"). _
   GridColumnStyles("Status"), MyGridColumn)
   dgeCol.EnterNull
End Sub

End Class

Public Class MyGridColumn
Inherits DataGridTextBoxColumn
   Public Sub EnterNull()
      me.EnterNullValue
   End Sub
End Class

.NET Framework
Available since 1.1
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