private void InternalSetTriState(TriState state)
{
ThreeStateTreeView treeView = base.TreeView as ThreeStateTreeView;
if (treeView != null)
{
WinFormsUI.Controls.NativeMethods.TVITEM lParam = new WinFormsUI.Controls.NativeMethods.TVITEM {
mask = 24,
hItem = base.Handle,
stateMask = 61440
};
switch (state)
{
case TriState.Unchecked:
lParam.state |= 4096;
break;
case TriState.Checked:
lParam.state |= 8192;
break;
case TriState.Indeterminate:
lParam.state |= 12288;
break;
default:
throw new ArgumentOutOfRangeException("state");
}
WinFormsUI.Controls.NativeMethods.SendMessage(new HandleRef(base.TreeView, base.TreeView.Handle), 4365, 0, ref lParam);
treeView.TreeViewAfterTriStateUpdate(this);
}
}
public void SetNodeText(string sNodeText)
{
ThreeStateTreeView treeView = base.TreeView as ThreeStateTreeView;
if (treeView != null)
{
WinFormsUI.Controls.NativeMethods.TVITEM lParam = new WinFormsUI.Controls.NativeMethods.TVITEM {
mask = 17,
hItem = base.Handle,
pszText = Marshal.StringToHGlobalAnsi(sNodeText)
};
WinFormsUI.Controls.NativeMethods.SendMessage(new HandleRef(base.TreeView, base.TreeView.Handle), 4365, 0, ref lParam);
treeView.TreeViewAfterTriStateUpdate(this);
}
}