MFC 编辑控件更新

2022-01-12 00:00:00 c++ mfc visual-studio-2010

我尝试更新编辑控件的文本,使用它添加的变量,这是一个 CString,但我失败了.

I try to update an edit control's text, using it's added variable, which is a CString but i'm failing it.

m_sNrAuto = "some text";  
UpdateData(TRUE);

我也尝试过使用 UpdateWindow(),但编辑控件仍为空白.我知道我可以通过使用 SetWindowText() 来做到这一点,但我也看到了一些片段,其中 SetWindowText() 没有使用,更新是通过将值传递给附属的 CString.

I also tried using UpdateWindow(), but the edit control remains blank. I know i can do it by using SetWindowText(), but i also saw some snippets where SetWindowText() it's not used, the update is done by passing a value to an affiliated CString.

推荐答案

试试 UpdateData(false);

  • true 表示 Control=>数据

  • true means Control=>Data

false 表示数据=>控制

有时你必须这样做

UpdateData(true);  // snapshot ALL controls data
m_sNrAuto = "some text";  // tweak the one you actually need updated
UpdateData(false);  // this pushes ALL data, not just the one you tweaked

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