OnColumnDisplayIndexChanged Method
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DataGrid.OnColumnDisplayIndexChanged Method (DataGridColumnEventArgs)


Raises the ColumnDisplayIndexChanged event.

Namespace:   System.Windows.Controls
Assembly:  PresentationFramework (in PresentationFramework.dll)

protected internal virtual void OnColumnDisplayIndexChanged(
	DataGridColumnEventArgs e


Type: System.Windows.Controls.DataGridColumnEventArgs

The data for the event.

DataGrid requires that the DisplayIndex property of all columns must be unique integers from 0 toColumnsCount -1. Therefore, when the DisplayIndex of one column changes, the change will typically cause the DisplayIndex of other columns to change too.

Raising an event invokes the event handler through a delegate. For more information, see NIB: Raising an Event.

The OnColumnDisplayIndexChanged method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors:

When overriding OnColumnDisplayIndexChanged in a derived class, be sure to call the base class’s OnColumnDisplayIndexChanged method so that registered delegates receive the event.

.NET Framework
Available since 4.0
Available since 2.0
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