一、先初始化treeview
this.treeView1.CheckBoxes = true;
this.treeView1.ShowLines = false;
this.treeView1.DrawMode = System.Windows.Forms.TreeViewDrawMode.OwnerDrawAll;
this.treeView1.DrawNode += new System.Windows.Forms.DrawTreeNodeEventHandler(this.treeView_DrawNode);
二、实现委托事件
private void treeView_DrawNode(object sender, DrawTreeNodeEventArgs e)
{
//隐藏节点前的checkbox
if (e.Node.ImageIndex==6)
HideCheckBox(this.treeView1, e.Node);
e.DrawDefault = true;
}
三、隐藏的实现
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;
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); } [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);
将上面的实用工具类TreeViewUtility中，以方便使用，具体如下：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text; using System.Windows.Forms;
using System.Runtime.InteropServices; namespace SituationProcess//名称空间根据需要自行修改
{
/// <summary>
/// 给treeview控件的部分节点添加checkbox
/// </summary>
class TreeViewUtility
{
TreeView tvTreeView; public TreeViewUtility(TreeView treeView)
{
this.tvTreeView = treeView;
} public void InitializeTreeView()
{
this.tvTreeView.CheckBoxes = true;
this.tvTreeView.ShowLines = true;
this.tvTreeView.DrawMode = System.Windows.Forms.TreeViewDrawMode.OwnerDrawAll;
this.tvTreeView.DrawNode += new System.Windows.Forms.DrawTreeNodeEventHandler(tvTreeView_DrawNode);
} private void tvTreeView_DrawNode(object sender, DrawTreeNodeEventArgs e)
{
//隐藏节点前的checkbox
if (e.Node.Text == "数据集集合")//隐藏文本名称为“数据集集合”的TreeView控件节点
HideCheckBox(this.tvTreeView, e.Node);
e.DrawDefault = true;
} 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 + ;
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 = ;
SendMessage(tvw.Handle, TVM_SETITEM, IntPtr.Zero, ref tvi);
} [StructLayout(LayoutKind.Sequential, Pack = , 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);
}
}