How to call server side method code using javascript in asp.net

Here I would like to share code and process to call server side from the javascript. But in many cases we need to call any event method from javascript,In such cases I hope this article would help to resolve your process.

Initially you can call server side method event by two method of code. Here I illustrate with proper example to when we need to call method event using javascript.

Scenario 1;

Take as scenario in textbox when user enter text after the completion when users press enter key, you need to call the method in server side.

<asp:TextBox ID="TextBox1"  runat="server" onkeypress="return EnterEvent(event)"></asp:TextBox>    <asp:Button ID="Button3" runat="server" style="display:none" Text="Button" />

In javascript we need to write a function enter event to call server side code button event.

<script type="text/javascript"> function EnterEvent(e) {         if (e.keyCode == 13) {             __doPostBack('<%=Button3.ClientID%>', "");         }     } </script>

So when user press enter key it will call the button3 server side code event.

Scenario 2:

Also we can call server side code by another using this anther way i.e.

function caller(){         document.getElementById('<%= Button3.ClientID %>').click();          }

By using above code have alternate way to call server side from javascript.

I hope this article would helpful to you post your comments

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