wpf - How to use a data trigger in a text box that uses the selectedItem of a dataGrid? -


i want use data trigger in text box set isenabled property according value of property of selected item in data grid.

i trying this:

<textbox.style>     <style targettype="textbox">         <style.triggers>             <datatrigger binding="{binding mydatagridname, elementname=selecteditem.myproperty1.myproperty2}" value="1">                 <setter property="isenabled" value="false"/>             </datatrigger>         </style.triggers>     </style> </textbox.style>

but textbox enabled. check when select item, has property1 , property2 has 1 value. guess problem don't set trigger correctly.

try code, need specify datagrid elementname not selecteditem:

<textbox.style>     <style targettype="textbox">         <style.triggers>             <datatrigger binding="{binding elementname=mydatagridname, path=selecteditem.myproperty1.myproperty2}" value="1">                 <setter property="isenabled" value="false"/>             </datatrigger>         </style.triggers>     </style> </textbox.style>

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