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ListViewDataItem.DisplayIndex Property

  • Reference

Definition

Namespace:
System.Web.UI.WebControls
Assembly:
System.Web.Extensions.dll

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

public:
 virtual property int DisplayIndex { int get(); };
public virtual int DisplayIndex { get; }
public override int DisplayIndex { get; }
member this.DisplayIndex : int
Public Overridable ReadOnly Property DisplayIndex As Integer
Public Overrides ReadOnly Property DisplayIndex As Integer

Property Value

Int32

The zero-based position of the data item as displayed in the ListView control.

Implements

DisplayIndex

Examples

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 void PreferredCheckBox_CheckedChanged(object sender, EventArgs e)
{
  // Gets the CheckBox object that fired the event.
  CheckBox chkBox = (CheckBox) sender;

  // Gets the item that contains the CheckBox object. 
  ListViewDataItem item = (ListViewDataItem) chkBox.Parent.Parent;
  
  // Update the database with the changes.
  VendorsListView.UpdateItem(item.DisplayIndex, false);
}

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

Remarks

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.

Note

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

Applies to

See also