DataGridColumnStyle::EnterNullValue Method ()
.NET Framework (current version)
Enters a DBNull::Value into the column.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
This method is called when the user presses ALT+0 to allow a column to enter the appropriate null value. For example, when called on a DataGridTextBoxColumn, the appropriate NullText value is inserted into the column.
The EnterNullValue has no default behavior. When inheriting from DataGridColumnStyle, override the method to enter null in a column.
The following code example shows a possible override of the EnterNullValue method.
Overrides Protected Sub EnterNullValue() ' Enter the NullText value into a hosted TextBox control. Me.TextBox.Text = Me.NullText End Sub
.NET Framework
Available since 1.1
Available since 1.1
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