gothedistance https://blog.hatena.ne.jp/gothedistance/ Life is Really Short, Have Your Life!! https://aroundthedistance.hatenadiary.jp/ C# WPF stackoverflow.com The ContextMenu isn't in the same part of the Visual Tree so that's why you can't use ElementName etc. to reference the DataGrid. You'll have to use PlacementTarget of the ContextMenu instead. WPFのXAMLのビジュアルツリーの中に右クリックメニューが含まれてないので、CommandParamterに要素名(ElementName)を指定しても動きませんよ、という話ら… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Faroundthedistance.hatenadiary.jp%2Fentry%2F2015%2F12%2F08%2F130351" title="DataGridのContextMenuでUIElementが取得できない問題 - Life is Really Short, Have Your Life!!" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2015-12-08 13:03:51 rich https://aroundthedistance.hatenadiary.jp/entry/2015/12/08/130351 1.0 100%