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ListViewDataItem.DataItem Property

Gets or sets the underlying data object that the ListViewItem object is bound to.

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

public override Object DataItem { get; set; }
<asp:ListViewDataItem DataItem="Object" />

Property Value

Type: System.Object
The underlying data object that the ListViewItem object is bound to.

Implements

IDataItemContainer.DataItem

The DataItem property is available only during and after the ItemDataBound event of a ListView control.

The following example shows how to use the DataItem property to retrieve a field value. The value is then used to pre-select an item in a DropDownList control that is displayed when an item is in edit mode. This code example is part of a larger example that is provided for the ListViewDataItem class.

protected void ContactsListView_ItemDataBound(object sender, ListViewItemEventArgs e)
{

  //Verify there is an item being edited.
  if (ContactsListView.EditIndex >= 0)
  {

    //Get the item object.
    ListViewDataItem dataItem = (ListViewDataItem)e.Item;

    // Check for an item in edit mode.
    if (dataItem.DisplayIndex == ContactsListView.EditIndex)
    {

      // Preselect the DropDownList control with the Title value
      // for the current item.

      // Retrieve the underlying data item. In this example
      // the underlying data item is a DataRowView object.        
      DataRowView rowView = (DataRowView)dataItem.DataItem;

      // Retrieve the Title value for the current item. 
      String title = rowView["Title"].ToString();

      // Retrieve the DropDownList control from the current row. 
      DropDownList list = (DropDownList)dataItem.FindControl("TitlesList");

      // Find the ListItem object in the DropDownList control with the 
      // title value and select the item.
      ListItem item = list.Items.FindByText(title);
      list.SelectedIndex = list.Items.IndexOf(item);

    }
  }
}

.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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