how to call javascript function in c#

Question

1.00/5 (1 vote)

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Hello,
I have a javascript function in aspx page

XML

<script type="text/javascript">
    function assignpwd() {
        var abc = document.getElementById('<%=Txtpwd.ClientID%>').value;

        document.getElementById('<%=Password1.ClientID%>').value = hex_md5(abc);
        return true;

    }

This is hidden fields used in function..

XML

<asp:HiddenField ID="Password1" runat="server" />
     <asp:HiddenField ID="Txtpwd" runat="server" />

I want to call this function in my c# page on page load event.

Thanks
Srishti

Posted 29-Jun-14 21:25pm

srishti_

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Peter Leow · Answer 1 · 2014-06-29T21:28:00

Solution 1

Try this

<body  önload="assignpwd()">

Refer: event_onload[^]

Posted 29-Jun-14 21:28pm

Peter Leow

Updated 29-Jun-14 21:29pm

v3

Comments

VICK 30-Jun-14 3:35am

The OP wants it from serverside Page Load. @Peter Leow.

srishti_ 30-Jun-14 3:38am

i used this but it works on page load and in this time HiddenField Txtpwd has no value it is assign later in code

VICK 30-Jun-14 3:50am

are u assigning the value to hidden field in the page load method or where??

Do try my pasted solution below(the last link ) and call the JS function after assigning value to hidden field.

dharam1 · Answer 2 · 2014-06-29T22:11:00

Solution 3

Use the below code in serverside

ScriptManager.RegisterStartupScript(this, this.GetType(), "script", "assignpwd();", true);

Posted 29-Jun-14 22:11pm

dharam1

**VICK** · Answer 3 · 2014-06-29T21:34:00

Solution 2

To call a javascript function from serverside you can use

ScriptManager.RegisterClientScriptBlock Method

for details you can have a look at HERE.

Further the following link can help you with an working example.

Call From ServerSide..

and this one as well.

Hope it will help. :)

Posted 29-Jun-14 21:34pm

VICK