微软ajax框架中，通过异步回发的脚本来激发服务端事件，为何不执行，见内文代码?该如何解决
日期：2014-05-17 浏览次数：20494 次
微软ajax框架中，通过异步回发的脚本来激发服务端事件，为何不执行，见内文代码?
如下我仅是想测试，在调用button1按钮后在自动激发button2的事件，但总是不执行，如果在invoke()中加alert();alert会执行。
急救大侠们救助！
<%@ 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 Button1_Click(object sender, EventArgs e)
{
this.Label1.Text = DateTime.Now.ToString() + "updated by button1";
ScriptManager.RegisterStartupScript(UpdatePanel1, UpdatePanel1.GetType(),"script01",
"invoke();",true);
}
protected void Button2_Click(object sender, EventArgs e)
{
this.Label2.Text = DateTime.Now.ToString() + "updated by button2";
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>无标题页</title>
<script type="text/javascript">
function invoke()
{
$get('Button2').click();
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:Label ID="Label1" runat="server" Text="Label1"></asp:Label>
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Button1" />
</ContentTemplate>
</asp:UpdatePanel>
<asp:UpdatePanel ID="UpdatePanel2" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:Label ID="Label2" runat="server" Text="Label2"></asp:Label>
<asp:Button ID="Button2" runat="server" Text="Button2" OnClick="Button2_Click" />
</ContentTemplate>
</asp:UpdatePanel>
</div>
</form>
</body>
</html>
------解决方案--------------------
http://msdn.microsoft.com/zh-cn/library/bb399001.aspx
http://msevents.microsoft.com/CUI/WebCastEventDetails.aspx?EventID=1032328480&EventCategory=3&culture=zh-CN&CountryCode=CN
http://msdn.microsoft.com/zh-cn/magazine/cc163413.aspx
http://msdn.microsoft.com/zh-cn/library/bb398866.aspx
http://dflying.cnblogs.com/archive/2006/04/01/363998.html
------解决方案--------------------
如下我仅是想测试，在调用button1按钮后在自动激发button2的事件，但总是不执行，如果在invoke()中加alert();alert会执行。
急救大侠们救助！
<%@ 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 Button1_Click(object sender, EventArgs e)
{
this.Label1.Text = DateTime.Now.ToString() + "updated by button1";
ScriptManager.RegisterStartupScript(UpdatePanel1, UpdatePanel1.GetType(),"script01",
"invoke();",true);
}
protected void Button2_Click(object sender, EventArgs e)
{
this.Label2.Text = DateTime.Now.ToString() + "updated by button2";
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>无标题页</title>
<script type="text/javascript">
function invoke()
{
$get('Button2').click();
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:Label ID="Label1" runat="server" Text="Label1"></asp:Label>
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Button1" />
</ContentTemplate>
</asp:UpdatePanel>
<asp:UpdatePanel ID="UpdatePanel2" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:Label ID="Label2" runat="server" Text="Label2"></asp:Label>
<asp:Button ID="Button2" runat="server" Text="Button2" OnClick="Button2_Click" />
</ContentTemplate>
</asp:UpdatePanel>
</div>
</form>
</body>
</html>
------解决方案--------------------
http://msdn.microsoft.com/zh-cn/library/bb399001.aspx
http://msevents.microsoft.com/CUI/WebCastEventDetails.aspx?EventID=1032328480&EventCategory=3&culture=zh-CN&CountryCode=CN
http://msdn.microsoft.com/zh-cn/magazine/cc163413.aspx
http://msdn.microsoft.com/zh-cn/library/bb398866.aspx
http://dflying.cnblogs.com/archive/2006/04/01/363998.html
------解决方案--------------------
- HTML code
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Button1" />
</Triggers>
------解决方案--------------------
我在VS 2008里面调试你的程序，一切正常啊！
2009/1/13 上午 09:02:31updated by button1
2009/1/13 上午 09:02:31updated by button2
------解决方案--------------------
我也测试通过
------解决方案--------------------
没发现有什么错误呀?
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