Question

In a GridView, I’m trying to show either one column or an other using a public Boolean property:

   <Columns>    ...      <asp:BoundField Visible='<%= !ShowPurchaseDate %>' DataField='Published' HeaderText='Publicerad' SortExpression='PriceRange' DataFormatString='{0:yyyy.MM.dd}' HtmlEncode='false' />      <asp:BoundField Visible='<%= ShowPurchaseDate %>' DataField='OrderDate' HeaderText='Köpt' SortExpression='OrderDate' DataFormatString='{0:yyyy.MM.dd}' HtmlEncode='false' />     ...   </Columns> 

But I’m getting an error message saying that it’s not possible to create a System.Boolean from a string that contains <% !ShowPurchaseDate %> for property Visisble.

How can I achive this?

UPDATE:

<%# !ShowPurchaseDate %> doesn’t work either as there’s no databinding going on.

Using a protected funktion doesn’t work either (same error message as with property).

Answer 1

I solved it through:

gridMain.Columns[ShowPurchaseDate ? 3 : 4].Visible = false; 

Is this the best solution?