Issue 11760 fix tool strip combo box display#11761

Tanya-Solyanik merged 2 commits intodotnet:maindotnet/winforms:mainfrom

LeafShi1:Issue_11760_Fix_ToolStripComboBox_displayLeafShi1/winforms:Issue_11760_Fix_ToolStripComboBox_displayCopy head branch name to clipboard