設定或傳回清單項目的識別值。預設值是 null。
public string Value {
get,
set
}
繼承
下列是從 MobileListItem 類別繼承 Value 屬性的類別清單。
| ObjectListItem 類別 |
備註
如果這個屬性是 null，呼叫擷取此值會傳回 Text 屬性值。
範例
下列範例示範如何使用 Value 屬性擷取選項值。
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If Not IsPostBack Then
SelectionList1.DataValueField = "URL"
Dim arr As New ArrayList()
arr.Add(New Navigation("Travel Site", "http://www.margiestravel.com"))
arr.Add(New Navigation("Home Site", "https://www.microsoft.com"))
SelectionList1.DataSource = arr
SelectionList1.DataBind()
End If
End Sub
Sub Command1_OnClick(sender As [Object], e As EventArgs)
RedirectToMobilePage(SelectionList1.Selection.Value.ToString())
End Sub
[C#]
public void Page_Load(Object sender, EventArgs e)
{
if (!IsPostBack)
{
SelectionList1.DataValueField="URL";
ArrayList arr = new ArrayList();
arr.Add (new Navigation ("Travel Site",
"http://www.margiestravel.com"));
arr.Add (new Navigation ("Home Site",
"https://www.microsoft.com"));
SelectionList1.DataSource = arr;
SelectionList1.DataBind ();
}
}
void cmd1_OnClick(Object sender, EventArgs e)
{
RedirectToMobilePage(SelectionList1.Selection.Value.ToString())
}