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Call Client Side Javascript function from Codebehind ASP.NET

Posted on 2013-01-10
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Last Modified: 2013-01-10
Hello Experts,

I need to call a Client Side JS function on a button click, where the button click event will update the data in database and shows a message of success.liek this:

 ScriptManager.RegisterClientScriptBlock(Page, Page.GetType(), Guid.NewGuid().ToString(), "alert('Record Updated Successfully.');", true);

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After the alert message, I need to call a client side function.I tried this:
ScriptManager.RegisterClientScriptBlock(Page, Page.GetType(), Guid.NewGuid().ToString(), "return chk();", true);

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It doesn't call the function.
0
Comment
Question by:ASPDEV
  • 2
  • 2
5 Comments
 
LVL 42

Expert Comment

by:sedgwick
ID: 38763505
so why from codebehind?
add onclick event, update your DB and alert from you client side.
0
 
LVL 42

Expert Comment

by:sedgwick
ID: 38763516
another thing,  you first wanna update and only after success alert with the message not the other way around, cause update might fail.
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Author Comment

by:ASPDEV
ID: 38763542
sedgwick,

The reason for codebehind is it does lot of validations and then insert into database. For this task, codebehind is better, only thing is I need to disable some controls if the database insert is success, and I have a button under updatepanel which triggers asynchronously.

Thanks.
0
 
LVL 18

Accepted Solution

by:
Rajar Ahmed earned 500 total points
ID: 38763702
try this,
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
    <script>
        function displayMessage(msg) {
            alert(msg);
            return chk();
        }
        function chk() {
            alert("Raised from Chk function");
        }
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    <asp:ScriptManager ID="asm" runat="server"></asp:ScriptManager>
            <asp:Button ID="Button1" runat="server" Text="Button" 
            onclick="Button1_Click" />
            
    
    </div>
    </form>
</body>
</html>

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    protected void Button1_Click(object sender, EventArgs e)
    {
        string custommessage = "Success";
        ScriptManager.RegisterStartupScript(this.Page, this.GetType(), Guid.NewGuid().ToString(), "displayMessage('" + custommessage + "');", true);
    }

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0
 

Author Closing Comment

by:ASPDEV
ID: 38764963
Perfect!

Thanks,
ASPDEV
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