GridView HeaderText is empty in some cases

It returns an empty string!

<asp:TemplateField HeaderText='<%= "2323" %>'>

How to solve it? Originally i want to in开发者_Go百科voke a page method.

Using HeaderTemplate solved my problem, but it doesn't explain why. :/

Try this?

<asp:TemplateField HeaderText="2323">

UPDATE:

Remove the HeaderTemplate tags and try doing it programmatically:

http://bytes.com/topic/asp-net/answers/615373-setting-text-headertemplate-how