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ListViewDataItem.DisplayIndex Property

Gets the position of the data item as displayed in the ListView control.

Namespace:  System.Web.UI.WebControls
Assembly:  System.Web.Extensions (in System.Web.Extensions.dll)

'Declaration
Public Overrides ReadOnly Property DisplayIndex As Integer

Property Value

Type: System.Int32
The zero-based position of the data item as displayed in the ListView control.

Implements

IDataItemContainer.DisplayIndex

The DisplayIndex property corresponds to the current position of the item as displayed by the ListView control. Each item's DisplayIndex value reflects the order in which they were added to the control in that particular page of data. You can use the DisplayIndex property to retrieve a ListViewDataItem object in the Items collection.

NoteNote

This property applies only to data items. It does not apply to insert items or empty items.

The following example shows how to use the DisplayIndex property to retrieve the index of the item that is being edited. This code example is part of a larger example provided for the ListView.UpdateItem method.

Protected Sub PreferredCheckBox_CheckedChanged(ByVal sender As Object, ByVal e As EventArgs) 

  ' Gets the CheckBox object that fired the event.
  Dim chkBox As CheckBox = CType(sender, CheckBox)

  ' Gets the item that contains the CheckBox object. 
  Dim item As ListViewDataItem = CType(chkBox.Parent.Parent, ListViewDataItem)

  ' Update the database with the changes.
  VendorsListView.UpdateItem(item.DisplayIndex, False)    

End Sub

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5
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