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Image button with Javascript in a Datalist

I have a image button in a datalist.  What I want ot be able to do is change the image on a onclick.  I can get it working when the image buttons is out side the datalist but can't firgure out how to append my code.  Please find the code I've got so far attached below
<script type="text/javascript">
 
function ChangeImage()
    {
        var imgbtn=document.getElementById("ImageButton2");
        imgbtn.src="Images/cart.jpg";
    }
 
 
 
</script>
 
 
 
 <asp:ImageButton ID="ImageButton2" runat="server" 
                    ImageUrl="~/Images/barrels.jpg" /><input type="button" onclick="javascript:ChangeImage()" value="Click" />

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leap29
Asked:
leap29
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1 Solution
 
sunithnairCommented:
You can do it like this
<script type="text/javascript">
 
function ChangeImage(imgbtn)
    {
        imgbtn.src="Images/cart.jpg";
    }
 
 
 
</script>
 
 
 
 <asp:ImageButton ID="ImageButton2" runat="server" 
                    ImageUrl="~/Images/barrels.jpg" onclick="javascript:ChangeImage(this)" />
 

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leap29Author Commented:
Thanks fro the reply, I've tried the code you suggested but get this error
Compiler Error Message: CS1026: ) expected
 
<asp:ImageButton ID="ImageButton1" runat="server" onclick="javascript:ChangeImage(this)" - line that the error is on.
 
full code for image button
 
asp:LinkButton ID="LinkButton2" runat="server" 
                                    CommandArgument='<%# Bind("jobid") %>' CommandName="DetailsViewRedirect" 
                                    Font-Size="Small" ForeColor="#9966FF" oncommand="LinkButton2_Command"  
                                    style="font-weight: 700; font-size: medium;" 
                                    Text='<%# Bind("jobtitle") %>' onclick="LinkButton2_Click"></asp:LinkButton>
 
 
script tag 
 
<script type="text/javascript">
   
       function ChangeImage(imgbtn)
    {
        imgbtn.src="Images/cart2.jpg";
    }
   
</script>

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sunithnairCommented:
Sorry it should be OnClientClick and not onclick

<asp:ImageButton ID="ImageButton1" runat="server" OnClientClick="javascript:ChangeImage(this)" />
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leap29Author Commented:
Thanks that seems to have worked although I have a small problem of when the page postback on the image button click the image changes back to it's orginally one.  Any suggestions on how to work around this?
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sunithnairCommented:
You can do it like this
<script type="text/javascript">
    function ChangeImage(imgbtn)
    {
        imgbtn.src="Images/cart2.jpg";
        document.getElementById("<%=hdnImage.ClientID %>").value = imgbtn.id;
    }
    function SetImage()
    {
        var img = document.getElementById(document.getElementById("<%=hdnImage.ClientID %>").value);
        if(img != null)
            img.src = "Images/cart2.jpg";
    }
</script>
<body onload="SetImage();">
  <!-- YOUR CODE DATALIST AND ALL-->
   <asp:HiddenField ID="hdnImage" runat="server" />
</body>

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leap29Author Commented:
Thanks got that working now, however I think I may have gone about my problem the wrong the way.
I'm going to open another question with regards to this.  hopefully you can help me with that.  Thanks a lot for the help with this question.
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