Undefined CLR namespace

[Randy]

I have a XAML designer error that doesn't seem to affect the operation of the control.

xmlns:ext="clr-namespace:Telerik.Windows.Controls.MaskedInput;assembly=Telerik.Windows.Controls.Input"

<telerik:RadMaskedCurrencyInput Mask="#6.2" IsClearButtonVisible="False" AllowSkipPlaceholders="False" TextMode="PlainText" Placeholder=" " FormatString="n2" AutoFillNumberGroupSeparators="False" SelectionOnFocus="SelectAll" ext:MaskedInputExtensions.Minimum="0" />

I borrowed this code from another example, but I end up with these errors even though it still compiles and appears to function.

Undefined CLR namespace. The 'clr-namespace' URI refers to a namespace 'Telerik.Windows.Controls.MaskedInput' that could not be found.
The attachable property 'Minimum' was not found in type 'MaskedInputExtensions'.

Any idea what I am doing wrong?

[Randy]

No ideas on what to look at?

[Pavel R. Pavlov]

Hello Randy,

This is expected behavior of VS2012. It does not find any namespaces defined outside the following one:

xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"

Our MaskedInputExtensions dll is defined in different namespace and this is why the designer is showing this error. Unfortunately we are not aware of any workarounds for the moment.

All the best,
Pavel R. Pavlov
the Telerik team

[Arie]

Hi Pavel

Do you still not know of a workaround? I also need this in my project.

Regards,
Arie

[Pavel R. Pavlov]

Hi Arie,

The design support for the RadMaskedInput and their extensions is not yet implemented. However, you as our customer can log a feature request in our feedback portal. After submitting the item we will observe the demand of our clients and if many of them require this functionality we will implement it.

Thank you for understanding.

Regards,
Pavel R. Pavlov
Telerik