AG_E_PARSER_BAD_TYPE when extending control

06-30-2009 8:00 AM |

 Hi,

i'm trying to extend a button to enrich it with my own functionality. But running my test application produces AG_E_PARSER_BAD_TYPE exception.
Code snippets:

MainControl.xaml.cs

using System.Windows.Controls;

namespace TestApp
{
    public partial class MainControl : UserControl
    {
        public MainControl()
        {
            // Required to initialize variables
            InitializeComponent();

        }

    }
}

 MainControl.xaml

<UserControl
xmlns=http://schemas.microsoft.com/winfx/2006/xaml/presentation
xmlns:x=http://schemas.microsoft.com/winfx/2006/xaml
xmlns:usr="clr-namespace:TestApp;assembly=TestApp"
x:Class="TestApp.MainControl">
<Grid x:Name="LayoutRoot" Background="White">
<usr:MyButton>
</usr:MyButton>
</Grid>
</UserControl>

MyButton.cs

using System.Windows.Controls;
namespace TestApp
{
    partial class MyButton : Button
    {
        public MyButton()
            : base()
        {
        }
    }
}

Can somebody tell me what is going wrong?

THX

Re: AG_E_PARSER_BAD_TYPE when extending control

06-30-2009 8:16 AM |

Check this post :

http://silverlight.net/forums/t/65077.aspx

Re: AG_E_PARSER_BAD_TYPE when extending control

06-30-2009 8:22 AM |

By the way, did you have quotes around the xmlns?

 xmlns=http://schemas.microsoft.com/winfx/2006/xaml/presentation
xmlns:x=http://schemas.microsoft.com/winfx/2006/xaml

should be:

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

Re: Re: AG_E_PARSER_BAD_TYPE when extending control

06-30-2009 8:27 AM |

Thanks "internal" was a copy & paste mistake.

Originally i was trying to take a Silverlight Button source code and try to rename the types. But somehow i stuck on the ResourceDictionary. Could you give me advice, which part of the generic.xml should i take an modify in order to get it workin as my own "MyButton"?

And yes, i have quotes on xmlns. Editor just kicked them out.

Re: Re: Re: AG_E_PARSER_BAD_TYPE when extending control

06-30-2009 8:31 AM |

Got it working. Had a typo in the ControlTemplate/TargetType definition.