在java脚本函数之前执行函数背后的VB代码 [英] execute VB code behind function before java script function
问题描述
可能的重复:
从javascript调用ASP函数
可以运行此代码:
<身体><form id="form1" runat="server"><div><asp:Button ID="buttonme" runat="server" OnClientClick="javascript:hello()" Text="click"/>背后的代码:
Protected Sub buttonme_Click(ByVal senderAs Object, ByVal e As EventArgs) 处理 buttonme.ClickMsgBox("来自 vb.net 的你好世界")结束子会在 vb.net MsgBox 之前执行 javascript 消息吗?有没有办法让这个翻转来执行javascript函数第二谢谢
简短的回答是否定的.VB 代码是服务器端.javascript 代码在客户端.有多种方法可以从 javascript(例如 Ajax)执行服务器端代码.
此外，您不希望在 Web 服务器上调用 MessageBox.Show，因为那里应该没有 UI，它会阻止执行.
Possible Duplicate:
calling ASP function from javascript
okay running this code :
<script type="text/javascript">
function hello() {
alert("hello world from javascript ")
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Button ID="buttonme" runat="server" OnClientClick="javascript:hello()" Text="click" />
</div>
CODE BEHIND :
Protected Sub buttonme_Click(ByVal sender
As Object, ByVal e As EventArgs) Handles buttonme.Click
MsgBox("hello world from vb.net ")
End Sub
will execute the javascript message before the vb.net MsgBox ? is there is a way to make this flipped to execute the javascript function second THANKS
The short answer is no. The VB code is server side. The javascript code is on the client side. There are ways to execute server side code from javascript (e.g. Ajax).
Also, you don't want to call MessageBox.Show on the web server as there should be no UI there and it will block execution.
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