ClientScript.RegisterStartupScript Problem

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ClientScript.RegisterStartupScript Problem

Last post 11-12-2009 2:04 AM by feroze1. 6 replies.

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ClientScript.RegisterStartupScript Problem

11-08-2009, 12:22 PM

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58 point Member
ankit_sam2001
Member since 09-08-2009, 5:05 PM
Posts 45

Hello,

I am using the following code to execute javascript from codebehind

string strJscript = "<script language='javascript'>setName('div1');</script>";
ClientScript.RegisterStartupScript(typeof(string), "strJscript1", strJscript);

Which is working fine, when i open the page first time.

But when i click on submit button, this script executes but doesnt display any result.

Help me pls.

www.ankitsharma.info

Re: ClientScript.RegisterStartupScript Problem

11-08-2009, 4:51 PM

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1,022 point Participant
bruce (sqlwork.com)
Member since 04-11-2007, 11:00 PM
Posts 183

if you register the script on postback, and don't do any redirects or server transfers, it should work fine.

you can view source after clicking the submit button and the page re-renders to see if it appeared as desired.

bruce (sqlwork.com)

Re: ClientScript.RegisterStartupScript Problem

11-08-2009, 10:40 PM

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2 point Member
sachin.pithode
Member since 11-06-2009, 4:46 AM
Posts 1

Also please check script already registered or not else it will stop working.

Re: ClientScript.RegisterStartupScript Problem

11-09-2009, 12:36 AM

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58 point Member
ankit_sam2001
Member since 09-08-2009, 5:05 PM
Posts 45

Well I have the above code on page_load, it works fine when page is loaded

Hence when I click submit, the same code executes again but doesnt display the result.

if I use like If(!IspostBack) , even then i dont get the desired result.

Is there any other way to execute javascript function from codebehind?

www.ankitsharma.info

Re: ClientScript.RegisterStartupScript Problem

11-12-2009, 1:28 AM

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Answer

2,888 point Contributor
Song-Tian - MSFT
Member since 09-02-2009, 4:44 AM
Posts 239

Hi,

You could use RegisterStartupScript() or RegisterClientScriptBlock() to execute javascript function from codebehind, and there also have some different. For more details, please refer:http://msdn.microsoft.com/en-us/library/aa479390.aspx

The another way is like that:

<%@ Page Language="C#" %>

<script runat="server"> 
    protected void Page_Load(object sender, EventArgs e)
    {
        Button1.Attributes.Add("onclick", 
           "javascript:alert('ALERT ALERT!!!')");
    }
</script>

<html  >
<head runat="server">
    <title>Using JavaScript</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:Button id="Button1" runat="server" Font-Bold="True" 
         Font-Names="Verdana" Font-Size="Larger" 
         Text="Click Me!"></asp:Button>
    </div>
    </form>
</body>
</html>

Roy Tian.
Microsoft Online Community Support

Please remember to mark the replies as answers if they help and unmark them if they provide no help.

Re: ClientScript.RegisterStartupScript Problem

11-12-2009, 1:40 AM

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1,869 point Participant
nimish_soft
Member since 10-22-2009, 1:23 PM
India
Posts 372

Song-Tian - MSFT:
Hi,

You could use RegisterStartupScript() or RegisterClientScriptBlock() to execute javascript function from codebehind, and there also have some different. For more details, please refer:http://msdn.microsoft.com/en-us/library/aa479390.aspx

The another way is like that:
view plain copy to clipboard print ?
<%@ Page Language="C#" %>

<script runat="server">
    protected void Page_Load(object sender, EventArgs e)
    {
        Button1.Attributes.Add("onclick",
           "javascript:alert('ALERT ALERT!!!')");
    }
</script>

<html  >
<head runat="server">
    <title>Using JavaScript</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:Button id="Button1" runat="server" Font-Bold="True"
         Font-Names="Verdana" Font-Size="Larger"
         Text="Click Me!"></asp:Button>
    </div>
    </form>
</body>
</html>
<%@ Page Language="C#" %>

<script runat="server"> 
    protected void Page_Load(object sender, EventArgs e)
    {
        Button1.Attributes.Add("onclick", 
           "javascript:alert('ALERT ALERT!!!')");
    }
</script>

<html  >
<head runat="server">
    <title>Using JavaScript</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:Button id="Button1" runat="server" Font-Bold="True" 
         Font-Names="Verdana" Font-Size="Larger" 
         Text="Click Me!"></asp:Button>
    </div>
    </form>
</body>
</html>

i use the same way to add a js on asp:button

- Nimish Garg
Software Developer
IndiaMART InterMESH Limited, Noida

Blog: http://nimishgarg.blogspot.com/

Plz do click "Mark as Answer" on the post that helped you. This will also give you point and help readers to know which post solved your issue and make their search easy.

Re: ClientScript.RegisterStartupScript Problem

11-12-2009, 2:04 AM

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712 point Member
feroze1
Member since 03-30-2007, 9:42 AM
Lahore
Posts 189

try this i will help you....

private string getjQueryCode(string jsCodetoRun)
    {
        StringBuilder sb = new StringBuilder();
        sb.AppendLine("$(document).ready(function() {");
        sb.AppendLine(jsCodetoRun);
        sb.AppendLine(" });");

        return sb.ToString();
    }

    private void runjQueryCode(string jsCodetoRun)
    {

        ScriptManager requestSM = ScriptManager.GetCurrent(this);
        if (requestSM != null && requestSM.IsInAsyncPostBack)
        {
            ScriptManager.RegisterClientScriptBlock(this,
                                                    typeof(Page),
                                                    Guid.NewGuid().ToString(),
                                                    getjQueryCode(jsCodetoRun),
                                                    true);
        }
        else
        {
            ClientScript.RegisterClientScriptBlock(typeof(Page),
                                                   Guid.NewGuid().ToString(),
                                                   getjQueryCode(jsCodetoRun),
                                                   true);
        }
    }

call runjQueryCode funtion where you want with param

runjQueryCode("setName('div1');");

* you must add JQuery reference

Please "Mark As Answer" if helpfull..
Feroze Ahmed

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