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ListView.SelectedIndex Property

Gets or sets the index of the selected item in a ListView control.

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

'Declaration
Public Overridable Property SelectedIndex As Integer
<asp:ListView SelectedIndex="Int32" />

Property Value

Type: System.Int32
The zero-based index of the selected item in a ListView control. The default is -1, which indicates that no item is currently selected.

ExceptionCondition
ArgumentOutOfRangeException

The SelectedIndex property is set to a value less than -1.

Use the SelectedIndex property to determine the index of the currently selected item in a ListView control. You can also use this property to programmatically select an item in the control. (However, if you manually data-bind the ListView control, you might have to handle reading or setting this property manually as well.)

The following example shows how to use the SelectedIndex property to determine whether an item is selected in a ListView control. This code example is part of a larger example provided for the DeleteItem method.

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

  ' Check if an item is selected to delete it.
  If ContactsListView.SelectedIndex >= 0 Then
    ContactsListView.DeleteItem(ContactsListView.SelectedIndex)
  Else
    Message.Text = "No contact was selected."
  End If

End Sub

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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