ASP.NET DataValueField 屬性
ListControl控件參考手冊 定義和用法
DataValueField 屬性規定要綁定到控件中每個項目的Value 屬性的數據源字段。
實例
下面的實例使用一個XML 文件來填充RadioButtonList 的數據：
<%@ Import Namespace="System.Data" %>
<script runat="server">
sub Page_Load
if Not Page.IsPostBack then
dim mycountries=New DataSet
mycountries.ReadXml(MapPath("countries.xml"))
rb.DataSource=mycountries
rb.DataValueField="value"
rb.DataTextField="text"
rb.DataBind()
end if
end sub
sub displayMessage(s as Object,e As EventArgs)
lbl1.text="You selected: " & rb.SelectedItem.Text
end sub
</script>
<form runat="server">
<asp:RadioButtonList id="rb" AutoPostBack="True"
runat="server" onSelectedIndexChanged="displayMessage" />
<asp:label id="lbl1" runat="server" />
</form>
<script runat="server">
sub Page_Load
if Not Page.IsPostBack then
dim mycountries=New DataSet
mycountries.ReadXml(MapPath("countries.xml"))
rb.DataSource=mycountries
rb.DataValueField="value"
rb.DataTextField="text"
rb.DataBind()
end if
end sub
sub displayMessage(s as Object,e As EventArgs)
lbl1.text="You selected: " & rb.SelectedItem.Text
end sub
</script>
<form runat="server">
<asp:RadioButtonList id="rb" AutoPostBack="True"
runat="server" onSelectedIndexChanged="displayMessage" />
<asp:label id="lbl1" runat="server" />
</form>
演示實例»
實例中使用的XML文件是countries.xml
ListControl控件參考手冊