wpf - isEnabled binded to other button click -


i can't figure out resource missing work, getting messages ei namespace not found.

        <button           name="btnenter"         click="btnenter_click"         style="{staticresource signbuttons}"         fontfamily="comic"         fontsize="24"         fontweight="demibold"         grid.column="3"          height="51.562"         width="75"         margin="30,23.624,0,0"         grid.row="3"         template="{dynamicresource enterbutton}">             <i:interaction.triggers>                 <i:eventtrigger eventname="click">                     <ei:changepropertyaction                      targetobject="{binding elementname=btnmultiplication}"                      propertyname="isenabled" value="false"/>                 </i:eventtrigger>             </i:interaction.triggers>         </button>

here namespaces

<window x:class="button_template.mainwindow"     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"     xmlns:local="clr-namespace:button_template"     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"     xmlns:i="http://schemas.microsoft.com/netfx/2009/xaml/presentation"      mc:ignorable="d"

i suggest follow these steps when adding changepropertyaction, callmethodaction, etc... 1. go blend , open project, , select control want insert changepropertyaction enter image description here

after add changepropertyaction blend automaticly add xmlns extensions. enter image description here

so won't have manualy. after save in blend, go vs , reaload project , continue.

important interaction added on selected control in objects , timeline window.


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