xaml - WPF - Groupbox header alignment -


in wpf app, want achieve groupbox:

goal http://imagizer.imageshack.us/a/img829/189/15iy.png

the goal creating template header, display in left (checkbox + text), , in right side (button).

unfortunately, is:

what http://imageshack.com/a/img513/706/fiaq.png

i not programmatically, in xaml (as cleaner possible). mean, using grids, columndefinitions, etc... not dealing margins crash when resizing window.

the xaml i'm using (grid 3 columns):

<groupbox margin="5">         <groupbox.header>             <grid>                  <grid.columndefinitions>                     <columndefinition width="15"></columndefinition>                     <columndefinition width="100*"></columndefinition>                     <columndefinition width="auto"></columndefinition>                 </grid.columndefinitions>                  <checkbox grid.column="0"></checkbox>                 <textblock grid.column="1" margin="5,0,5,0" text="this groupbox"></textblock>                 <button content="click" fontsize="8" background="yellow" grid.column="2" height="16" width="54"></button>              </grid>         </groupbox.header>     </groupbox>

what think?

by default header left align groupbox header. in case want few parts left aligned , few right need override controltemplate of groupbox header defined here , here.

however, can force grid stretch horizontally button can placed in right. can see in snapshot, border line gets hide header content might this:

enter image description here

relevant code achieve be:

xaml

<groupbox margin="5" x:name="groupbox"           xmlns:local="clr-namespace:namespaceofconverter">     <groupbox.resources>         <local:subtractionconverter x:key="subtractionconverter"/>     </groupbox.resources>     <groupbox.header>         <grid width="{binding actualwidth, elementname=groupbox,                       converter={staticresource subtractionconverter}}">             <grid.columndefinitions>                 <columndefinition width="15"></columndefinition>                 <columndefinition width="auto"></columndefinition>                 <columndefinition width="*"></columndefinition>             </grid.columndefinitions>              <checkbox grid.column="0"/>             <textblock grid.column="1" margin="5,0,5,0"                        text="this groupbox"/>             <button content="click" fontsize="8" background="yellow"                     horizontalalignment="right" grid.column="2"                     height="16" width="54"/>         </grid>     </groupbox.header> </groupbox>

converter

public class subtractionconverter : ivalueconverter {     public object convert(object value, type targettype, object parameter,                            system.globalization.cultureinfo culture)     {         return (double)value - 25.0;     }      public object convertback(object value, type targettype, object parameter,                                system.globalization.cultureinfo culture)     {         return binding.donothing;     } }

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