DataGridColumnStyle.ReadOnlyChanged Event
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Occurs when the ReadOnly property value changes.
public:
event EventHandler ^ ReadOnlyChanged;
public event EventHandler ReadOnlyChanged;
member this.ReadOnlyChanged : EventHandler
Public Custom Event ReadOnlyChanged As EventHandler
Event Type
Examples
The following code example demonstrates the use of this member.
private:
void Button_Click( Object^ /*sender*/, EventArgs^ /*e*/ )
{
if ( myButton->Text->Equals( "Make column read/write" ) )
{
myDataGridColumnStyle->ReadOnly = false;
myButton->Text = "Make column read only";
}
else
{
myDataGridColumnStyle->ReadOnly = true;
myButton->Text = "Make column read/write";
}
}
void AddCustomDataTableStyle()
{
myDataGridTableStyle = gcnew DataGridTableStyle;
myDataGridTableStyle->MappingName = "Customers";
myDataGridColumnStyle = gcnew DataGridTextBoxColumn;
myDataGridColumnStyle->MappingName = "CustName";
// Add EventHandler function for readonlychanged event.
myDataGridColumnStyle->ReadOnlyChanged += gcnew EventHandler( this, &MyForm1::myDataGridColumnStyle_ReadOnlyChanged );
myDataGridColumnStyle->HeaderText = "Customer";
myDataGridTableStyle->GridColumnStyles->Add( myDataGridColumnStyle );
// Add the 'DataGridTableStyle' instance to the 'DataGrid'.
myDataGrid->TableStyles->Add( myDataGridTableStyle );
}
void myDataGridColumnStyle_ReadOnlyChanged( Object^ /*sender*/, EventArgs^ /*e*/ )
{
MessageBox::Show( "'Readonly' property is changed" );
}
private void Button_Click(Object sender, EventArgs e)
{
if (myButton.Text == "Make column read/write")
{
myDataGridColumnStyle.ReadOnly = false;
myButton.Text = "Make column read only";
}
else
{
myDataGridColumnStyle.ReadOnly = true;
myButton.Text = "Make column read/write";
}
}
private void AddCustomDataTableStyle()
{
myDataGridTableStyle = new DataGridTableStyle();
myDataGridTableStyle.MappingName = "Customers";
myDataGridColumnStyle = new DataGridTextBoxColumn();
myDataGridColumnStyle.MappingName= "CustName";
// Add EventHandler function for readonlychanged event.
myDataGridColumnStyle.ReadOnlyChanged += new EventHandler(myDataGridColumnStyle_ReadOnlyChanged);
myDataGridColumnStyle.HeaderText = "Customer";
myDataGridTableStyle.GridColumnStyles.Add(myDataGridColumnStyle);
// Add the 'DataGridTableStyle' instance to the 'DataGrid'.
myDataGrid.TableStyles.Add(myDataGridTableStyle);
}
private void myDataGridColumnStyle_ReadOnlyChanged(Object sender, EventArgs e)
{
MessageBox.Show("'Readonly' property is changed");
}
Private Sub Button_Click(ByVal sender As Object, ByVal e As EventArgs)
If myButton.Text = "Make column read/write" Then
myDataGridColumnStyle.ReadOnly = False
myButton.Text = "Make column read only"
Else
myDataGridColumnStyle.ReadOnly = True
myButton.Text = "Make column read/write"
End If
End Sub
Private Sub AddCustomDataTableStyle()
myDataGridTableStyle = New DataGridTableStyle()
myDataGridTableStyle.MappingName = "Customers"
myDataGridColumnStyle = New DataGridTextBoxColumn()
myDataGridColumnStyle.MappingName = "CustName"
' Add EventHandler function for readonlychanged event.
AddHandler myDataGridColumnStyle.ReadOnlyChanged, AddressOf myDataGridColumnStyle_ReadOnlyChanged
myDataGridColumnStyle.HeaderText = "Customer"
myDataGridTableStyle.GridColumnStyles.Add(myDataGridColumnStyle)
' Add the 'DataGridTableStyle' instance to the 'DataGrid'.
myDataGrid.TableStyles.Add(myDataGridTableStyle)
End Sub
Private Sub myDataGridColumnStyle_ReadOnlyChanged(ByVal sender As Object, ByVal e As EventArgs)
MessageBox.Show("'Readonly' property is changed")
End Sub
Applies to
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