How to call .js file externally in asp.net

Question

1.00/5 (1 vote)

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This is my JScript1.js file code

C#

function TestAlert() {
alert("Test"):
}

ASP.NET

 <script src="Assets/Scripts/JScript1.js" type="text/javascript"></script>

<asp:Button ID="btnLogin" CssClass="login-button" runat="server" Text="Login" 
                                            OnClick="btnLogin_Click" OnClientClick="JScript1:TestAlert();"/>

the logic is not working..............

Posted 22-Jul-12 19:16pm

skpraveenkumar

Updated 22-Jul-12 19:19pm

JF2015

v2

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perilbrain · Answer 1 · 2012-07-22T19:25:00

Solution 1

If you are using an Embedded javascript then its good to use

VB

ClientScript.RegisterStartupScript

An example here:-

However if you want to use javascript from JScript1.js, using simple

HTML

onclientclick="TestAlert()"

is enough.
Example

Posted 22-Jul-12 19:25pm

perilbrain

Updated 22-Jul-12 23:32pm

v3

Comments

AmitGajjar 23-Jul-12 2:24am

how you will do this using RegisterStartupScript ? are you going to read .js file and then pass text into it ???!!!!!

jasmin_patel · Answer 2 · 2012-07-22T19:42:00

On ASPX Page Give The Reference of your javascript in <header> tag or header Content like Bellow....

JavaScript

<script src="../../../JScript.js" type="text/javascript"></script></script>

Call Javascript On Click Of Button Linke....

C#

<asp:linkbutton id="lnkSelectComp" onclientclick="return selectAllComp();" text="Select All" xmlns:asp="#unknown">
                        runat="server" /></asp:linkbutton>

Here JScript.js Code..

JavaScript

function selectAllComp() {
    
    var companies = document.getElementById('ctl00_ContentPlaceHolder1_listCompany');
    var optLength = companies.options.length;
    for (var i = 0; i < optLength; i++) {
        companies.options[i].selected = true;
    }
    return false;
}

Thank You,
Hope It Will Help You.

**AmitGajjar** · Answer 3 · 2012-07-22T20:26:00

Solution 3

Hi,

Everything is correct from your code. the only problem i can see is about locating your javascript file. Please use FireBug[^] to see if your javascript file is loaded from correct location ?

Hope you will find your issue yourself.

Thanks
-Amit Gajjar.

Posted 22-Jul-12 20:26pm

AmitGajjar

ncsubbu · Answer 4 · 2012-07-22T20:45:00

Solution 4

Change the OnclientClick with javascript method name.

<asp:button id="btnLogin" cssclass="login-button" runat="server" text="Login" xmlns:asp="#unknown">
OnClick="btnLogin_Click" OnClientClick="TestAlert();"/>

Posted 22-Jul-12 20:45pm

ncsubbu