The LeavingEdit event is raised after a cell has been edited. It provides information on the cell that has been edited and provides the opportunity to prevent the cell editor from being removed, leaving the cell in edit mode, or to change the new value that is about to be assigned to the cell.
Keep in mind that the LeavingEdit event will not be raised if the LeaveEdit method is called with its commit parameter set to false.
Basic steps - C#
To subscribe to the LeavingEdit event, the following steps must be performed:
Subscribe to the LeavingEdit event of the Cell object using the LeavingEditEventHandler delegate class
Create a new method that will handle the events that are raised.
Place the desired code in the newly created event handler.
Basic steps - VB.NET
To subscribe to the LeavingEdit event, the following steps must be performed:
Obtain a reference to a Cell object.
Subscribe to the LeavingEdit event of the Cell object using the AddHandler/AddressOf keywords.
Create a new method that will handle the events that are raised.
Place the desired code in the newly created event handler.
Demonstration
This example assumes that you are in a Windows application.
VB.NET
Copy Code
Imports Xceed.Grid
Dim cell As Cell For Each cell in gridControl1.DataRowTemplate.Cells AddHandler cell.LeavingEdit, AddressOf Me.cell_LeavingEdit Next cell
' This method will handle the LeavingEdit events that are raised. Private Sub cell_LeavingEdit( ByVal sender As Object, ByVal e As LeavingEditEventArgs ) Try If( e.NewValue is String ) And ( CType( e.NewValue, String ) = "Hello" ) Then e.NewValue = "World" End If Catch exception As Exception MessageBox.Show( exception.ToString() ) End Try End Sub
' If you no longer wish to handle the LeavingEdit events that are raised, ' you can unsubscribe from the event notification by doing the following: RemoveHandler cell.LeavingEdit, AddressOf Me.cell_LeavingEdit
C#
Copy Code
using Xceed.Grid;
foreach( Cell cell in gridControl1.DataRowTemplate.Cells ) { cell.LeavingEdit += new LeavingEditEventHandler( this.cell_LeavingEdit ); }
// This method will handle the LeavingEdit events that are raised. private void cell_LeavingEdit( object sender, LeavingEditEventArgs e ) { try { if( ( e.NewValue is string ) && ( ( string )e.NewValue == "Hello" ) ) { e.NewValue = "World"; } } catch( Exception exception ) { MessageBox.Show( exception.ToString() ); } }
// If you no longer wish to handle the LeavingEdit events that are raised, // you can unsubscribe from the event notification by doing the following: cell.LeavingEdit -= new LeavingEditEventHandler( this.cell_LeavingEdit );
Copy Code