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ASP.NET 2.0 Basics If you are new to ASP or ASP.NET programming with version 2.0, this is the forum to begin asking questions. Please also see the Visual Web Developer 2005 forum.
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Old February 16th, 2007, 05:22 PM
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Default <%# %> or <%= %>

Hi All,

What is the difference between using <%# %> and <%= %>. I have not found a reasonable explanation for this anywhere. Can anyone help me understand it.

Many thanks

Tahir

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Old February 16th, 2007, 05:29 PM
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There are 3 main differences:

1. <%= expressions are evaluated at render time
2. <%# expressions are evaluated at DataBind() time and are not evaluated at all if DataBind() is not called.
3. <%# expressions can be used as properties in server-side controls. <%= expressions cannot.

hth

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Old February 16th, 2007, 05:32 PM
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<%# expression can be used as properties? What does that mean. Can you give an example please

Tahir

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Old February 16th, 2007, 05:38 PM
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For example

<asp:label id="something" text='<%# <variable/function/etc> %>' runat=server />

where as
<asp:label id="something" text='<%= <variable/function/etc> %>' runat=server />

will not work

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