如何使用C#4.0 Win Form Application隐藏TreeView控件中某个TreeNode的复选框？

Question

在我的C#Windows窗体应用程序中,我有Treeview控件和复选框.

我想从用户隐藏TreeView控件中某个树节点的复选框.我怎么做？

请指导我摆脱这个问题......

Answer 1

本文介绍了如何在树视图中隐藏某个节点的checbox.

更新

文章中的解释和代码:

目前,没有内置支持来完成这项工作.但是我们可以向treeview控件发送TVM_SETITEM消息,将TVITEM结构的状态字段设置为0,将TVITEM的hItem字段设置为treenode的句柄.然后这个treenode将摆脱复选框.

示例代码列表如下:

public const int TVIF_STATE = 0x8;
public const int TVIS_STATEIMAGEMASK = 0xF000;
public const int TV_FIRST= 0x1100;
public const int  TVM_SETITEM = TV_FIRST + 63;

public 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")]
static extern IntPtr SendMessage(IntPtr hWnd, uint Msg, IntPtr wParam, IntPtr lParam);

private void button1_Click(object sender, System.EventArgs e)
{
    TVITEM tvi=new TVITEM();
    tvi.hItem=this.treeView1.SelectedNode.Handle;
    tvi.mask=TVIF_STATE;
    tvi.stateMask = TVIS_STATEIMAGEMASK;
    tvi.state=0;
    IntPtr lparam=Marshal.AllocHGlobal(Marshal.SizeOf(tvi));
    Marshal.StructureToPtr(tvi, lparam, false);
    SendMessage(this.treeView1.Handle, TVM_SETITEM, IntPtr.Zero, lparam);
}

此代码隐藏了所选的treenode的复选框,它在我身边很有效.您可以复制并粘贴项目以进行测试.