Name
EditCommandColumn
Synopsis
The EditCommandColumn
class is a special type
of column used with the DataGrid
control. It provides an “Edit” button or link (depending on the ButtonType
property) that, when
clicked, fires the DataGrid.EditCommand
event. This event allows you to initiate editing for a row by using the DataGrid.EditItemIndex
property (after
which you must rebind to the data source).
While editing is in progress, the EditCommandColumn
displays “Cancel”
and “Update” buttons instead of an “Edit” button. These will trigger the DataGrid.CancelCommand
and DataGrid.UpdateCommand
events,
respectively. In these events, you can add the code required to commit changes to the
data source and cancel editing (by setting DataGrid.EditItemIndex
to -1). Rebind
to the data source before returning the page.
Note that you must provide values for the CancelText
, EditText
, and UpdateText
properties
(like “Cancel”, “Edit”, and “Update”). Otherwise, the associated command buttons will
not appear in the column when editing is underway.
Public Class EditCommandColumn : Inherits DataGridColumn ' Public Constructors Public Sub New() ' Public Instance Properties Overridable Public Property ButtonType As ButtonColumnType Overridable Public Property CancelText As String Overridable Public Property EditText As String Overridable Public Property UpdateText As String ' Public Instance Methods Overrides Public Sub InitializeCell( ByVal cell As TableCell, ByVal columnIndex As Integer, ByVal itemType ...
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