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另外UpdatePanel还提供了一个方法Update(),可以通过代码控件部分更新。
先说这么多。下面给个代码，使用了这些属性。
以下是引用片段：
<%@ Page Language="C#" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xHTML1/DTD/xHTML1-transitional.dtd">
<script runat="server">
protected void Button4_Click(object sender, EventArgs e)
{
UpdatePanel1.Update();
}
</script>
<HTML XMLns="http://www.w3.org/1999/xHTML" >
<head runat="server">
<title>Untitled Page</title>
<style type="text/CSS">
.UpdatePanelTitle
{
color:red;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<div>
<ASP:ScriptManager ID="ScriptManager1" runat="server">
</ASP:ScriptManager>
<fieldset>
<legend class="UpdatePanelTitle">UpdatePanel控件外</legend>
<ASP:Button runat="server" ID="Button5" Text="引发常规回传" /><br />
<ASP:Button runat="server" ID="Button1" Text="引发异步回传" /><br />
Refrest at <%=DateTime.Now.ToUniversalTime()%>
</fieldset>
<ASP:UpdatePanel ID="UpdatePanel1" UpdateMode="Conditional" runat="server">
<Triggers>
<ASP:PostBackTrigger ControlID="Button2" />
</Triggers>
<ContentTemplate>
<fieldset>
<legend class="UpdatePanelTitle">UpdatePanel1</legend>
<ASP:Button runat="server" ID="Button2" Text="引发常规回传" />
Refresh at <%=DateTime.Now.ToUniversalTime()%>
</fieldset>
</ContentTemplate>
</ASP:UpdatePanel>
<ASP:UpdatePanel ID="UpdatePanel2" UpdateMode="Conditional" runat="server">
<Triggers>
<ASP:AsyncPostBackTrigger ControlID="Button1" />
</Triggers>
<ContentTemplate>
<fieldset>
<legend class="UpdatePanelTitle">UpdatePanel2</legend>
<ASP:Button runat="server" ID="Button3" Text="InPanel2" />
Refresh at <%=DateTime.Now.ToUniversalTime() %><br />
<ASP:UpdatePanel ID="UpdatePanel3" runat="server" UpdateMode="Always">
<ContentTemplate>
<fieldset>
<legend class="UpdatePanelTitle">UpdatePanel3:I'm Child of UpdatePanel2</legend>
<ASP:Button runat="server" ID="Button4" Text="InPanel3" OnClick="Button4_Click" />
Refresh at <%=DateTime.Now.ToUniversalTime()%>
</fieldset>
</ContentTemplate>
</ASP:UpdatePanel>
</fieldset>
</ContentTemplate>
</ASP:UpdatePanel>
<ASP:UpdatePanel ID="UpdatePanel4" UpdateMode="Conditional" runat="server" ChildrenAsTriggers="false">
<ContentTemplate>
<fieldset>
<legend class="UpdatePanelTitle">UpdatePanel4</legend>
<ASP:Button runat="server" ID="Button6" Text="引发常规回传,但不更新自己" />
Refresh at <%=DateTime.Now.ToUniversalTime()%>
</fieldset>
</ContentTemplate>
</ASP:UpdatePanel>
</div>
</form>
</body>
</HTML>
。
