TreeView的复选框隐藏 重新整理

CheckBoxes 为真

代码如下

using System.Runtime.InteropServices;

 

#region 树的复选框隐藏



        private const int TVIF_STATE = 0x8;

        private const int TVIS_STATEIMAGEMASK = 0xF000;

        private const int TV_FIRST = 0x1100;

        private const int TVM_SETITEM = TV_FIRST + 63;





        [StructLayout(LayoutKind.Sequential, Pack = 8, CharSet = CharSet.Auto)]

        private struct TVITEM

        {

            public int mask;

            public IntPtr hItem;

            public int state;

            public int stateMask;

            [MarshalAs(UnmanagedType.LPTStr)]

            public string lpszText;

            public int cchTextMax;

            public int iImage;

            public int iSelectedImage;

            public int cChildren;

            public IntPtr lParam;

        }



        [DllImport("user32.dll", CharSet = CharSet.Auto)]

        private static extern IntPtr SendMessage(IntPtr hWnd, int Msg, IntPtr wParam,ref TVITEM lParam);





        /// <summary>

        /// Hides the checkbox for the specified node on a TreeView control.

        /// 隐藏树的复选框

        /// <remarks>

        /// HideCheckBox(treeView1, node);

        /// </remarks>

        /// </summary>

        private void HideCheckBox(TreeView tvw, TreeNode node)

        {

            TVITEM tvi = new TVITEM();

            tvi.hItem = node.Handle;

            tvi.mask = TVIF_STATE;

            tvi.stateMask = TVIS_STATEIMAGEMASK;

            tvi.state = 0;

            SendMessage(tvw.Handle, TVM_SETITEM, IntPtr.Zero, ref tvi);

        }



        #endregion

 

使用方法

HideCheckBox(PerTreeView, rootTNode);

HideCheckBox(树对象, 节点对象);

节点对象前的复选框则隐藏了