How to change my treeView icons insted of +,- like a windows explorer treeview in c#.net win forms
问题 How can I change the expand/collapse images from the plus ( + ) and minus ( - ) images that appear when ShowPlusMinus and/or ShowRootLines are true . To help visualize, I would like to make the following TreeView Look like this (like Windows explorer) 回答1: Expanding on Ivan Ičin's solution : [DllImport("uxtheme.dll", ExactSpelling = true, CharSet = CharSet.Unicode)] private static extern int SetWindowTheme(IntPtr hwnd, string pszSubAppName, string pszSubIdList); public static void