如何使用$.ajax？当我使用它时，它没有击中我的控制器操作
任何人都可以帮助我吗？
我有这段代码
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">
<script type="text/javascript">
function GOTO() {
var datastring = "id=2";
$.ajax({
type: "POST",
url: "/Home/Index",
dataType: "json",
data: datastring,
success: function (json) { Complete(json.result); },
error: function (request, status, error) {
//alert("an error occurred: " + error);
alert("Error saving data. Please contact support.");
}
});
}
function Complete(result) {
if (result == "success") {
alert("Success");
}
else {
alert("Failed");
}
}
</script>
<input type="button" value="submit" onclick="JavaScript:GOTO()" />
</asp:Content>
，我的控制器代码是这样的，
[HttpPost]
public System.Web.Mvc.JsonResult Index(string datastring)
{
return Json(new { foo = "bar", baz = "Blech" });
}
但它根本没有击中我的控制器，这是我在视图中做错的事情吗？
谢谢
Can any body help me out.
I have this code
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">
<script type="text/javascript">
function GOTO() {
var datastring = "id=2";
$.ajax({
type: "POST",
url: "/Home/Index",
dataType: "json",
data: datastring,
success: function (json) { Complete(json.result); },
error: function (request, status, error) {
//alert("an error occurred: " + error);
alert("Error saving data. Please contact support.");
}
});
}
function Complete(result) {
if (result == "success") {
alert("Success");
}
else {
alert("Failed");
}
}
</script>
<input type="button" value="submit" onclick="JavaScript:GOTO()" />
</asp:Content>
and My Controller Code is this
[HttpPost]
public System.Web.Mvc.JsonResult Index(string datastring)
{
return Json(new { foo = "bar", baz = "Blech" });
}
But it never hits my controller at all, is that Something I am doing wrong in my View?
thanks
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评论（3）
尝试像这样传递
数据：Try passing the
datalike this:您的代码中有语法错误。
此外，您不需要在
onclick属性中指定JavaScript:协议，您只需在该位置定义一个标签即可。更好的是，根本不要在 HTML 属性中分配事件侦听器，而是使用不显眼的 JavaScript，包括在 JavaScript 不可用的罕见情况下进行后备。更新：如果您收到“
$.ajax未定义”错误，则您的页面中可能没有包含 jQuery。 将使用$.ajax（或任何其他 jQuery 函数）的script元素添加到页面上方。
You have a syntax error in your code.
Moreover, you don't need to specify the
JavaScript:protocol in theonclickattribute, you're merely defining a label at that place. Even better, don't assign event listeners in HTML attributes at all, but use unobtrusive JavaScript, including a fallback for the rare case when JavaScript is unavailable.Update: if you get the "
$.ajaxis undefined" error, you probably didn't include jQuery in your page. AddTo your page above the
scriptelement that uses$.ajax(or any other jQuery function).这可能取决于您传入的数据。您的方法需要一个名为 datastring 的参数，但您传入的是“id=2”。
it could be down to what data you are passing in. Your method expects a parameter called datastring but you are passing in 'id=2'.