Link button not working !!! eh....

nitinp · November 16th, 2006, 05:16 AM

Hello,

I've two LinkButtons on form. First link button updates time, second calls javascript function. Untill I click second, first works properly. As I click second, after then first does not work at all.

My code is as follows:

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

<script runat="server">
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            LinkButton1.Text = "Time: " + System.DateTime.Now.ToLongTimeString();
            LinkButton2.PostBackUrl = "javascript:SayHello();";
        }
    }

    protected void LinkButton1_Click(object sender, EventArgs e)
    {
        LinkButton1.Text = "Time: " + System.DateTime.Now.ToLongTimeString();
    }
</script>

<html>
<head runat="server">
    <title>Untitled Page</title>
    <script type="text/javascript">
        function SayHello()
        {
            alert("Hello");
        }
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:LinkButton ID="LinkButton1" runat="server" OnClick="LinkButton1_Click"></asp:LinkButton>
        <asp:LinkButton ID="LinkButton2" runat="server">Say Hello</asp:LinkButton></div>
    </form>
</body>
</html>

Any idea? Thanks in advance.

sh.rajkumar · November 24th, 2006, 08:30 AM

Try to call javascript in the click event of link button

-------------------
rajkumar sharma
http://www.apnasaathi.blogspot.com

thenoseknows · November 28th, 2006, 11:45 PM

I don't think you should set the PostBackUrl property on that linkbutton. I think you should just use the onclick property to call your javascript function. PostBackUrl probably screws with the whole web form because it's intended purpose is to post the whole form back to another URL.

I only modified one line:

Code:

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

<script runat="server">
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            LinkButton1.Text = "Time: " + System.DateTime.Now.ToLongTimeString();
            //LinkButton2.PostBackUrl = "javascript:SayHello();";            
            LinkButton2.Attributes.Add("onclick", "SayHello()");
        }
    }

    protected void LinkButton1_Click(object sender, EventArgs e)
    {
        LinkButton1.Text = "Time: " + System.DateTime.Now.ToLongTimeString();
    }
</script>

<html>
<head id="Head1" runat="server">
    <title>Untitled Page</title>
    <script type="text/javascript">
        function SayHello()
        {
            alert("Hello");
        }
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:LinkButton ID="LinkButton1" runat="server" OnClick="LinkButton1_Click"></asp:LinkButton>
        <asp:LinkButton ID="LinkButton2" runat="server">Say Hello</asp:LinkButton>
    </div>
    </form>
</body>
</html>

Neil Timmerman
Programmer
Veris Consulting

SriRamaKrishna · November 29th, 2006, 12:21 PM

HI , use "onclientclick" method of the control
to call ur clientside javascript function.

nitinp · December 14th, 2006, 12:43 AM

hi

Thanks Neil Timmerman and SriRamaKrishna
your suggestions really helped me out to get issue resolved.

ali_ggl · March 27th, 2008, 03:44 AM

Hi nitinp
i need some help; i have two pages first page's links are working and second page's asp link is not working i mean event of this link is not firing even the page is firing isPostBack but its own event is not firing. Help me if you can
Thanks.

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