默认情况下，如何在mfc中设置焦点或选择树控件中最顶层的项目 [英] How to set focus or select a top most item in tree control by default in mfc

问题描述

我有一个树形控件，我想将焦点设置在最顶层的项目上。我使用以下功能，但它没有设置。

Hi,

I have a tree control and I want to set focus on the top most item.Im using the following function but its not setting.

HTREEITEM htiRoot = m_treeAvailableGraphs.GetRootItem(); 
m_treeAvailableGraphs.SetItemState(htiRoot, LVIS_SELECTED | LVIS_FOCUSED, LVIS_SELECTED | LVIS_FOCUSED);

请建议我怎么做这个。

提前致谢。



我的尝试：

Please suggest me how can I do this.
Thanks in advance.

What I have tried:

HTREEITEM htiRoot = m_treeAvailableGraphs.GetRootItem(); 
m_treeAvailableGraphs.SetItemState(htiRoot, LVIS_SELECTED | LVIS_FOCUSED, LVIS_SELECTED | LVIS_FOCUSED);

推荐答案

很可能是因为您正在使用ListView状态而不是TreeView。请参见树视图控件项状态（Windows） [ ^ ]以获取正确的值。

Most likely because you are using ListView states rather than TreeView ones. See Tree-View Control Item States (Windows)[^] for the correct values.

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