ASP.NET GridView with DataBinding: toggle column visibility

Question

I've got an ASP.NET GridView bound to an ObjectDataSource where columns are not automatically generated. Now I want to display one row (containing the link to the edit-page) based on the permission of the user. I've got an method which does all the permission checks and returns a simple boolean value describing the visibility of the row. Now my markup looks somewhat like this:

<Columns>
    <%-- Some important information rows --%>

    <asp:TemplateField Visible='<%= CanEditRows() %>'>
        <%-- Column content --%>
    </asp:TemplateField>
</Columns>

However this somehow allways results in an error:

Object of type System.Boolean cannot be created from String '<%= CanEditRows() %>' and assigned to the Visible-property.

(or something in this way...)

I've also tried to toggle the column visibility from code-behind inside the DataBound or DataBinding-Events of the GridView, but everything I tried was unsuccessfull...

Can anybody help me out? :)

Thanks in advance!

Answer 1

try with this code

 <asp:TemplateField Visible=<%# CanEditRows() %> >