c# - Bind WPF user control property inside code -

i have mainwindow.xaml has user control , togglebutton:

<togglebutton x:name="toggle" content="wait" /> 

this button sets busydecorator user control property called isbusyindicatorshowing, works expected, whenever user clicks on toggle button sets user control property:

<window x:class="mainwindow"       xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"     xmlns:ctrls="clr-namespace:controls"     title="busy" height="300" width="300">     <grid>         <grid.rowdefinitions>         <rowdefinition height="322*" />         <rowdefinition height="53*" />         </grid.rowdefinitions>          <togglebutton x:name="toggle" content="show" margin="228,12,255,397" />         <ctrls:busydecorator  horizontalalignment="center" verticalalignment="center" isbusyindicatorshowing="{binding ischecked, elementname=toggle}">             <image  name="canvas" stretch="fill"  margin="5" />          </ctrls:busydecorator>     </grid> </window>  

i want bind busydecorator’s isbusyindicatorshowing property in code. added isbusyindicatorshowing="{binding isbusyindicatorshowing}" inside user control in xaml like

<ctrls:busydecorator   horizontalalignment="center" verticalalignment="center" x:name="actions" isbusyindicatorshowing="{binding isbusyindicatorshowing}">   ... 

but not know hot define , set property inside code like

public bool dosomething()     {        //init        //toggle user control        busydecorator.isbusyindicatorshowing = true;        //do stuff        //toggle user control        busydecorator.isbusyindicatorshowing = false;        return true;     } 

it not work because says

error   2   object reference required non-static field, method, or property 'controls.busydecorator.isbusyindicatorshowing.get'    

the error message key problem, assuming understand question correctly. when "busydecorator.isbusyindicatorshowing = true" using busydecorator class definition (as though static), not instance have defined in xaml.

you should able name xaml instance (note x:name):

<ctrls:busydecorator x:name="mybusydecorator" horizontalalignment="center" verticalalignment="center" isbusyindicatorshowing="{binding ischecked, elementname=toggle}">             <image  name="canvas" stretch="fill"  margin="5" />          </ctrls:busydecorator> 

then should able refer instance in code , access property in whatever event desire such:

mybusydecorator.isbusyindicatorshowing = true;