DataGrid.OnColumnDisplayIndexChanged(DataGridColumnEventArgs) Method

Reference

Definition

Namespace:: System.Windows.Controls

Assembly:: PresentationFramework.dll

Important

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Raises the ColumnDisplayIndexChanged event.

protected public:
 virtual void OnColumnDisplayIndexChanged(System::Windows::Controls::DataGridColumnEventArgs ^ e);

protected internal virtual void OnColumnDisplayIndexChanged (System.Windows.Controls.DataGridColumnEventArgs e);

abstract member OnColumnDisplayIndexChanged : System.Windows.Controls.DataGridColumnEventArgs -> unit
override this.OnColumnDisplayIndexChanged : System.Windows.Controls.DataGridColumnEventArgs -> unit

Protected Friend Overridable Sub OnColumnDisplayIndexChanged (e As DataGridColumnEventArgs)

Parameters

e: DataGridColumnEventArgs

The data for the event.

Remarks

DataGrid requires that the DisplayIndex property of all columns must be unique integers from 0 to Columns Count -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 Handling and Raising Events.

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(DataGridColumnEventArgs) in a derived class, be sure to call the base class' OnColumnDisplayIndexChanged(DataGridColumnEventArgs) method so that registered delegates receive the event.

Applies to