Vista - Problem with custom Markup Extension

Hi everybody,

Today I created my first custom Markup Extension... (yay me!!! )

My problem is that after defining my custom MarkupExtention...
rightfully called "CustomExtension"... I cannot use the attribute
syntax to use the extension...

<TextBox Text="{local:CustomExtension Param1=test}" /> <!-- Doesn't
work!!! -->

The compiler gives me an error indicating that the MarkupExtention
"CustomExtention" cannot be found in the "local" namespace and to make
sure that Markup Extentions must derive from MarkupExtension (which my
class does)...

If I use the Element Syntax (as above)... the neverything works
fine...

<TextBox>
<TextBox.Text>
<local:CustomExtension Param1="test"/>
</TextBox.Text>
</TextBox>

Now, maybe this is a bug of WPF, or I'm missing something else...

Thanks..

Marcys

Hi Marcus,

I am also experiencing compilation problems with custom markup extensions (Beta 2). But it seems that it works if you use plain XAML. I posted example on my blog: RefExtension - How to load XAML on-demand [ http://blog.vyvojar.cz/tom/archive/2006/05/25/8222.aspx ]

Kind regards,

Tom