.net - Apply IDataErrorInfo validation errors to a control Errors inside a usercontrol child element -

i have usercontrol contains label , textbox. validate textbox entry inside viewmodel using idataerrorinfo interface. validation kicks in, error not shown on textbox inside usercontrol on usercontrol itself.

this usercontrol (the other dependency properties in base class ):

<cc:labelableinputcontrol>  <grid x:name="layoutroot" >     <grid.columndefinitions>         <columndefinition width="auto" />         <columndefinition width="*" />     </grid.columndefinitions>     <label content="{binding path=labeltext, fallbackvalue=empty label}"          grid.column="0"         horizontalalignment="left"          name="baselabel"          verticalalignment="center"          width="{binding path=labelwidth}"/>      <textbox grid.column="1"          x:name="basetextbox"         text="{binding text" /> </grid> </cc:labelableinputcontrol> 

this code behind:

public partial class labelabletextbox : labelableinputcontrol {            [bindable(true)]     public string text     {         { return (string)getvalue(textproperty); }         set         {             setvalue(textproperty, value);         }     }     public static readonly dependencyproperty textproperty = textbox.textproperty.addowner(typeof(labelabletextbox));      public labelabletextbox()     {         initializecomponent();          layoutroot.datacontext = this;     } } 

and how it's (supposed) used:

<cc:labelabletextbox labeltext="{x:static text:resources.label_username}"         text="{binding username, mode=twoway,         validatesondataerrors=true, notifyonvalidationerror=true}" /> 

my question is: how can "forward" validation error textbox? currently, validation errors shown this, , don't want whole usercontrol framed.

thank you!

have @ thread: validation error templates usercontrol

they solve using errortemplates , triggers.