How to conditionally check a radiobutton inside asp.net repeater

I have a repeater inside a AjaxToolKit tabpanel on a ascx page of a website. The repeater is databound in codebehind and in the ascx like so:

<td>
   <asp:TextBox ID="txtLastName" runat="server" Enabled="false" Font-Size="11px" Text='<%# Container.DataItem("Lastname")%>'  Width="80px" Font-Names="Arial"></asp:TextBox></td>

<td style="text-align: center">
  <asp:RadioButton ID="rdbAchieved" runat="server" />
                                                                </td>

I would like to check the radiobutton at runtime based on the value of another dataitem ("Achievement") in the datasource i.e. the radiobutton should be checked only if the  dataitem ("Achievement")  = 2

I know this can also be done in codebehind in the repeater's ItemDataBound event and I have done that with no problems but would like to know if the above is also possible?

Many thanks in advance.
Al230762Asked:
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David Johnson, CD, MVPOwnerCommented:
if  ((Achievement  = 2) & (Radiobutton1.checked == $true)) {
// do something }
Al230762Author Commented:
Thank you David. Could you please clarify how your suggested script could be integrated into the properties of the radiobutton? I was thinking something like the following but it's not right:

<td style="text-align: center">
   <asp:RadioButton ID="rdbAchieved" runat="server" Checked='<%# Eval(Container.DataItem("Achievement")) == 2 ? True : False %>'/>
                                                                 </td>
David Johnson, CD, MVPOwnerCommented:
my example was in the code behind.
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Al230762Author Commented:
I'm fine with the code behind and have achieved that successfully as I indicated in the original question but I want to do this client side for various reasons. Any ideas on how to achieve that?
Many thanks.
dejaanbuCommented:
 <asp:RadioButton ID="rdbAchieved" runat="server" Checked='<%#Convert.ToInt32 (DataBinder.Eval(Container.DataItem,"Achievement")) == 2 ? True : False %>'/>

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Al230762Author Commented:
Thanks dejaanbu - but that is exactly what I have already tried (see my 2nd post) and it does not work because of syntax errors.
dejaanbuCommented:
Hi

But in my answer i added convert.int32 function for converting the value to an integer before comparison. just try that.
Al230762Author Commented:
Sorry dejaanbu. I should have been clearer. I did try your exact script but I still see the syntax errors on the double equals ("Expression expected") and also on False ("Syntax error"). Any idea why?
dejaanbuCommented:
instead of True and False, put true and false (case-sensitive)
Al230762Author Commented:
Thanks dejaanbu but that makes no difference. In fact when I change True to true  the script auto-reverts to True as you can see below.

Also "==" has the error "expression expected"
"?" has the error "The ? character cannot be used here"
"false" has the error "Syntax error"

<asp:RadioButton ID="rdbAchieved" runat="server" Checked='<%#Convert.ToInt32(DataBinder.Eval(Container.DataItem, "Achievement")) == 2 ? True : false %>'/>

Seems like it should be such a simple thing but how can I get this correct?
dejaanbuCommented:
r u using C# or VB ? i guessed that u r using C#.
try this VB version
<asp:RadioButton ID="rdbAchieved" runat="server" Checked='<%#If(Convert.ToInt32(DataBinder.Eval(Container.DataItem, "Achievement")) = 2, True, False) %>'/>

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Al230762Author Commented:
Apologies for the delayed response. Many thanks dejaangu - that is the correct syntax. I am indeed using VB and again, sorry I didn't make that clear.
dejaanbuCommented:
No problems... Glad to be of help! :)
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