如何从 JavaScript 调用 C# 函数? [英] How to call a C# function from JavaScript?

问题描述

我想从 JavaScript 调用 CsharpFunction，这是一个代码隐藏的 C# 函数.我尝试了下面的代码，但无论 JavaScript 条件是 True 还是 False，CsharpFunction 都会被调用！

I want to call CsharpFunction, a C# function in code-behind, from JavaScript. I tried the code below but whether the JavaScript condition is True or False, CsharpFunction was called regardless!

JavaScript 代码:

JavaScript code:

if (Javascriptcondition > 0) {
   <%CsharpFunction();%>
}

背后的C#代码:

protected void CsharpFunction()
{
  // Notification.show();
}

如何从 JavaScript 调用 C# 函数?

How do I call a C# function from JavaScript?

推荐答案

您可以使用 Web 方法和 Ajax:

You can use a Web Method and Ajax:

<script type="text/javascript">             //Default.aspx
   function DeleteKartItems() {     
         $.ajax({
         type: "POST",
         url: 'Default.aspx/DeleteItem',
         data: "",
         contentType: "application/json; charset=utf-8",
         dataType: "json",
         success: function (msg) {
             $("#divResult").html("success");
         },
         error: function (e) {
             $("#divResult").html("Something Wrong.");
         }
     });
   }
</script>

[WebMethod]                                 //Default.aspx.cs
public static void DeleteItem()
{
    //Your Logic
}

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