DataGrid::ParentRowsVisibleChanged Event

.NET Framework (current version)
 

Occurs when the ParentRowsVisible property value changes.

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

C#
C++
F#
VB
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public:
event EventHandler^ ParentRowsVisibleChanged {
	void add(EventHandler^ value);
	void remove(EventHandler^ value);
}

The following code example demonstrates the use of this member.

C#
C++
VB
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private:
   void CallParentRowsVisibleChanged()
   {
      myDataGrid->ParentRowsVisibleChanged += gcnew EventHandler( this, &MyForm::DataGridParentRowsVisibleChanged_Clicked );
   }

   // Set the 'ParentRowsVisible' property on click of a button.
   void ToggleVisible_Clicked( Object^ /*sender*/, EventArgs^ /*e*/ )
   {
      if ( myDataGrid->ParentRowsVisible == true )
            myDataGrid->ParentRowsVisible = false;
      else
            myDataGrid->ParentRowsVisible = true;
   }

   // raise the event when 'ParentRowsVisible' property is changed.
   void DataGridParentRowsVisibleChanged_Clicked( Object^ /*sender*/, EventArgs^ /*e*/ )
   {
      String^ myMessage = "ParentRowsVisibleChanged event raised, Parent row is : ";
      bool visible = myDataGrid->ParentRowsVisible;
      myMessage = String::Concat( myMessage, visible ? (String^)" " : " NOT ", "visible" );
      MessageBox::Show( myMessage, "ParentRowsVisible information" );
   }

.NET Framework
Available since 1.1
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