通过HTML按钮调用C#函数 [英] Calling a C# function by a HTML button

问题描述

我想做的就是通过按钮调用函数.

What I’m trying to do is to call function by a button.

我会给你一个简单的代码，不起作用！:

i'll leave you with a simple code that doesn't work!:

@{
    protected void print()
    { 
        @<p>WELCOME!</p>
    }
}


<form>
    <button  onclick="print" value="CLICK ME"/>
</form>

关于如何完成上面代码中的工作的任何想法吗?

any idea on how to accomplish what im trying to do in the code above?

注意:IM不使用MVC

推荐答案

您不能这样做，它不是ASP.NET WebForms.

You can't do it like this.It is not ASP.NET WebForms.

因此，如果要在Razor中的按钮单击"上执行C#函数，则必须可以创建Controller，然后当用户单击按钮时，必须可以调用一个javascript函数，然后它将ajax请求发送到您的控制器，然后获取数据(如果有数据)并显示.

So if you want to Execute a C# function on Button click in Razor, you must could create a Controller,then when user clicks a button you must can call a javascript function and it sends an ajax request to your controller then get the data (if there is data) and display it.

更新:这是有关如何执行此操作的另一个简单示例:

Update: Here is an alternative simple sample about how to do this:

在您的控制器中添加此方法:

In your Controller Add this Method:

public ActionResult GetMessage()
    {
        string message = "Welcome";
        return new JsonResult {Data = message,JsonRequestBehavior = JsonRequestBehavior.AllowGet};
    }

在您的视图(HTML)中:

And in your View (HTML):

<input type="button" onclick="GetMessage()" value="Get Message"/>
<p></p>

JavaScript:

JavaScript:

function GetMessage() {
        $.get("/Home/GetMessage", function (data) {
            $("p").html(data);
        });
    }

别忘了导入jQuery库:

And don't forget to import jQuery library:

<script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>

PS:我假设您的控制器名称为HomeController，如果名称不同，则必须更改网址:

PS: I assume your Controller name is HomeController, you must change the url if it has different name:

$.get("/{Controller-Name}/{Action-Name}", ...)

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