How to: Prevent Row Addition and Deletion in the Windows Forms DataGridView Control

Sometimes you will want to prevent users from entering new rows of data or deleting existing rows in your DataGridView control. The AllowUserToAddRows property indicates whether the row for new records is present at the bottom of the control, while the AllowUserToDeleteRows property indicates whether rows can be removed. The following code example uses these properties and also sets the ReadOnly property to make the control entirely read-only.

There is support for this task in Visual Studio. For more information, see How to: Prevent Row Addition and Deletion in the Windows Forms DataGridView Control Using the Designer and How to: Prevent Row Addition and Deletion in the Windows Forms DataGridView Control Using the Designer and How to: Prevent Row Addition and Deletion in the Windows Forms DataGridView Control Using the Designer and How to: Prevent Row Addition and Deletion in the Windows Forms DataGridView Control Using the Designer.

Example

Private Sub MakeReadOnly()

    With dataGridView1
        .AllowUserToAddRows = False
        .AllowUserToDeleteRows = False
        .ReadOnly = True
    End With

End Sub

private void MakeReadOnly()
{
    dataGridView1.AllowUserToAddRows = false;
    dataGridView1.AllowUserToDeleteRows = false;
    dataGridView1.ReadOnly = true;
}

Compiling the Code

This example requires:

• A DataGridView control named dataGridView1.

• References to the System and System.Windows.Forms assemblies.

See Also

Reference

DataGridView

DataGridView.AllowUserToAddRows

DataGridView.ReadOnly

DataGridView.AllowUserToAddRows

DataGridView.AllowUserToDeleteRows

Other Resources

Basic Column, Row, and Cell Features in the Windows Forms DataGridView Control