调用C＃功能从JavaScript中/ JQuery的在Asp.net web表单 [英] Call C# Function From JavaScript/JQuery In Asp.net webforms
问题描述
所以，我有一个aspx页面看起来像这样：
So, i have an aspx page which looks like this:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
</div>
</form>
</body>
</html>
我想知道，我怎么可以编写JavaScript（例如jQuery的）code，将调用一个函数从我的C＃code。让我们说，这是我的C＃方法：
I would like to know, how I can write JavaScript (e.g. jQuery) code that will call a function from my C# Code. Lets say this is my C# method:
protected void XXX(object sender, EventArgs e)
{
Response.Redirect("pagewho?");
}
再次感谢，阿龙。 ：）
Thanks again, Alon. :)
编辑：
这是全code我使用的时刻：
This is the full code i am using the moment:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<script type="text/javascript">
validateStuff = function () {
var isValid = true;
var txt = document.getElementById("TextBox1");
if (txt) {
if (txt.value.toLower() != "james") {
isValid = false;
}
}
//perform validation and return true/false
return isValid;
}
</script>
<form id="form1" runat="server">
<div>
<asp:Button ID="Button1" runat="server" OnClientClick="return validateStuff();" OnClick="Button1_Click" />
<br />
<br />
<asp:TextBox ID="TextBox1" runat="server" Height="25px" Width="135px"></asp:TextBox>
<br />
<br />
<br />
</div>
</form>
</body>
</html>
但是，不管什么，我wireting在文本框中，它的返回真。任何帮助吗？
but, no matter what i am wireting in the textbox, its return true. any help?
推荐答案
您可以使用 __ doPostBack 从脚本，并在code使用RaisePostBackEvent方法背后执行服务器端逻辑。如果你希望做一个重定向，这很可能是最好的办法。
You can use __doPostBack from the script, and use the RaisePostBackEvent method in the code behind to perform your server-side logic. If you're looking to do a redirect, this would probably be the best way.
修改
如果你正在寻找做一些验证在JavaScript中单击一个按钮时，可以使用的OnClientClick 来执行JavaScript验证，并返回true，如果验证成功。
If you're looking to do some validation in JavaScript when a button is clicked, use OnClientClick to perform your JavaScript validation, and return true if the validation succeeds.
<asp:Button ID="Button1" runat="server" OnClientClick="return validateStuff();" OnClick="Button1_Click" />
您的JavaScript验证：
Your JavaScript validation:
validateStuff = function(){
var isValid = true;
var txt = document.getElementById("<%=TextBox1.ClientID%>");
if (txt.value.toLower() != "james"){
isValid = false;
}
return isValid;
}
如果在 validateStuff 函数返回true，将发生回传，你可以处理你的保存按钮单击事件/更新逻辑：
If the validateStuff function returns true, a postback will occur and you can handle your save/update logic in the button click event:
protected void Button1_Click(object sender, EventArgs e)
{
//save some stuff to the database
string txtValue = TextBox1.Text.Trim();
}
在JavaScript的：
In JavaScript:
redirectToAnotherPage = function(){
__doPostBack("<%=SomeServerControl.ClientID%>", "someArgument");
}
在code-背后：
protected override void RaisePostBackEvent(IPostBackEventHandler source, string eventArgument)
{
//call the RaisePostBack event
base.RaisePostBackEvent(source, eventArgument);
Response.Redirect("anotherpage.aspx");
}
如果你正在寻找做的是带给用户到另一个页面，你也可以这样做：
If all you're looking to do is bring the user to another page, you can also do this:
redirectToAnotherPage = function(){
window.location.href = "somepage.aspx";
}
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