xml namespaces - WPF - Combine xmlns -

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1) have 3 assemblies. a,b , ui

2) b references a.

3) ui references b , a.

4) in a's assemblyinfo.cs 

     [assembly: xmlnsdefinition("http://www.cmp.com/a", "a.controls")]

5) in b's assemblyinfo.cs 

     [assembly: xmlnsdefinition("http://www.cmp.com/b", "b.controls.extensions")]

6) in ui have view 

<usercontrol  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"     xmlns:a="http://www.cmp.com/a"     xmlns:b="http://www.cmp.com/b">    <textbox a:textboxextensions.ext1="red"            b:textboxextensions.ext1="blue" />  </usercontrol>

is there way combine both "http://www.cmp.com/a" , "http://www.cmp.com/b" under same xmlns or atlist under same prefix ?

sure, need map both namespaces same url:

  • in a's assemblyinfo.cs

    [assembly: xmlnsdefinition("http://www.cmp.com/controls", "a.controls")]

  • in b's assemblyinfo.cs

    [assembly: xmlnsdefinition("http://www.cmp.com/controls", "b.controls.extensions")]

then have declare 1 xmlns access types both namespaces:

xmlns:controls="http://www.cmp.com/controls"

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