How to call a codebehind function from javascript in asp.net?

I want to call a function from my code behind using javascript. I used the below code:

function fnCheckSelection() {
some script;
window["My"]["Namespace"]["GetPart"](null);
}

...where "GetPart" is the function name. However, this is not working. Please help me on this.


in JavaScript:

    document.getElementById("btnSample").click();

Server side control:

    <asp:Button runat="server" ID="btnSample" Text="" style="display:none;" OnClick="btnSample_Click" />

C#

    protected void btnSample_Click(object sender, EventArgs e)
    {

    }

It is easy way though...

How to call a codebehind function from javascript in asp.net?, Hello guys, I want to call code behind method from javascript in asp.net c#. Please guys give me one example or tutorial to do so. Thanx in  No, it is not possible to call ASP.NET code behind function from Javascript directly. ASP.NET code behind executes on the server in the context of the ASP.NET worker process. Javascript is executed on the client in the context of the client's browser. The only way Javascript could trigger execution of ASP.NET code behind is through making an


You can do this by an ajax call

this is a jquery example:

$.ajax({
            type: "POST",
     url:"~/code_behind.aspx/Method",
            data: dataPost,
            contentType: "application/json; charset=utf-8",
            dataType: "json",
    ....
    });

here is api documentation and in code behind

[WebMethod]
public static yourType Method (Params){}

or you can add a hidden button inside updatePanel, and invoke the click event using js. ('#<%=ID.ClientID%>').click(); It will invoke the OnClientClick if it exists then your codeBehind fucntion.

calling code behind function from javascript, Here Mudassar Ahmed Khan has explained with an example, how to call Code Behind function from Client Side (JavaScript) in ASP.Net using  When you click the server control, ASP.NET always loads the page and then call the event which is triggered from JavaScript call. Its like we are clicking the button without mouse. – Nachiket Mar 3 '15 at 10:43


try this

Your code behind function

[WebMethod]
public  static void GetPart() {

               //your code goes here
}  

. Javascript

$(document).ready(function () {

 $("#btnname").click(function () {

 $.ajax({
                    type: "POST",
                    url: "/youraspxpagename.aspx/GetPart",
                    contentType: "application/json; charset=utf-8",
                    dataType: "json",
                    success: function (msg)
                    {

                    }
                });
});

});

Call Code Behind function from Client Side (JavaScript) in ASP.Net, In this article I will explain how to call Code Behind (Server Side) methods or functions using Client Side JavaScript code in ASP.Net using C#  As the title of this post says, today I want to share how to call a function or method in the code-behind from JavaScript, or in other words, run some server side code called from the client and then update our web page. Background. I needed to add some functionality to some ASPX pages so they would look more responsive, more like a desktop app.


Using ajax, you can call a codebehind function from javascript using JQuery:

function : fnCheckSelection(){
    $.ajax({
        cache: false,
        url: "/GetPart"
        type: "POST",
        success: function (result) {

        },
        error: function (msg) {

        }
    });
}

Call Code Behind (Server Side) function from Client Side code in , Using the code. OK. Let's add three text boxes to our ASPX page: Hide Copy Code. <asp:  1. Back end C# code is separate from your front end JavaScript code. JS runs on the client side and C# runs server side. In order to have front end code fire off a back end functions, you would either need your function to do a form postback or use Ajax (or an equivalent) to call that pages function. share.


Calling a code-behind function from JavaScript, For this you need to use jQuery, which uses Ajax call to call a Method from with the Click property pointed to your Code-behind function (in this case, /calling-​an-Asp-Net-C-Sharp-method-web-method-using-javascript/[^]. javascript - Call asp.net code-behind method when double clicked on html table - Email; Other Apps; i ask, if there way init asp placeholder , call code-behind


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Call C# Code Behind Function from Javascript in ASP.NET , the work around I did was just create a <asp:Button ID=“hiddenSummit” Runat=“​server” /> and call it in my JavaScript, works good. jeffyjones August 30, 2014,  In order to call the JavaScript function from Code Behind without using ScriptManager, one has to make use of the RegisterStartupScript method of the ClientScript class in ASP.Net using C# and VB.Net. Download View Demo. Download Free Files API. Download Free Files API. In this article I will explain with an example, how to call JavaScript