datalist

[fmardani]

Hi,
The following code works fine in asp.net using vb.net but it gives the following error when the project is in c#. Do you know why?
Thanks
<SelectedItemTemplate>
&nbsp;»
<asp:HyperLink id=HyperLink2 runat="server" CssClass="DepartmentSelected" text='<%# DataBinder.Eval(Container.DataItem, "Name") %>' NavigateUrl='<%# "../default.aspx?DepartmentID=" &amp; DataBinder.Eval(Container.DataItem,"DepartmentID") &amp;"&amp;DepartmentIndex=" &amp; Container.ItemIndex %>'>
</asp:HyperLink>
</SelectedItemTemplate>


Error: Operator '&' cannot be applied to operands of type 'string' and 'object'

 

[fmardani]

use + instead of &

 

[jen89]

I think this is what you want:

<asp:HyperLink id=HyperLink2 runat="server" CssClass="DepartmentSelected" text='<%# DataBinder.Eval(Container.DataItem, "Name") %>' NavigateUrl='<%# "../default.aspx?DepartmentID=" + DataBinder.Eval(Container.DataItem,"DepartmentID") + "&amp;DepartmentIndex=" + Container.ItemIndex %>'>

You do want some of the "&amp;" in there because it's part of your url string ("default.aspx?departmentID=12&DepartmentIndex=13", for example)

But some of those &amp;s look like they used to be regular old &s, used for VB concatonation. They seem to have been converted to HTML somewhere along the line. So you need to keep the &amp;s that are HTML codes for &s in the URL, and change all of the ones that are supposed to be for concatonation to "+", which is what you need to use for C# concatonation. I think the code above is what you want, but hopefully, this description will be enough to sort it out if it wasn't

 

[cappmgr]

To add to Jen89 answer you can use URL encoding that is %hex code. For an ampersand it would be %26.

http://helloamp.com?hello=world&urlencode=hex26

Do a mouse over the link and you will see the & in between world and urlencode.
Marty