从MFC和VS2010中的编辑控件中读取文本 [英] Read text from edit control in MFC and VS2010
问题描述
我在写一个简单的MFC应用程序,包括一个对话框窗口和一些按钮。
我添加了一个编辑控件,以便让用户插入一个文本字符串。
I'm writing a simple MFC application with a Dialog window and some buttons. I added also a edit control in order to let user insert a text string.
我想读取编辑控件中存在的值并将其存储在字符串中,但我不知道如何做到这一点。
I'd like to read the value which is present in the edit control and to store it in a string but i do not know how to do this.
我没有编译错误,但我总是只读一个。标记
I have no compilation error, but I always read only a "." mark.
我向文本编辑控件添加了一个变量名,它是 filepath1
,这是代码: / p>
I added a variable name to the text edit control which is filepath1
and this is the code:
// CMFC_1Dlg dialog
class CMFC_1Dlg : public CDialogEx
{
// Construction
public:
CMFC_1Dlg(CWnd* pParent = NULL); // standard constructor
// Dialog Data
enum { IDD = IDD_MFC_1_DIALOG };
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
// Implementation
protected:
HICON m_hIcon;
// Generated message map functions
virtual BOOL OnInitDialog();
afx_msg void OnSysCommand(UINT nID, LPARAM lParam);
afx_msg void OnPaint();
afx_msg HCURSOR OnQueryDragIcon();
DECLARE_MESSAGE_MAP()
public:
afx_msg void OnBnClickedButton1();
afx_msg void OnBnClickedButton2();
afx_msg void OnEnChangeEdit1();
CString filePath1;
}
//...
void CMFC_1Dlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialogEx::OnSysCommand(nID, lParam);
}
}
CMFC_1Dlg::CMFC_1Dlg(CWnd* pParent /*=NULL*/)
: CDialogEx(CMFC_1Dlg::IDD, pParent)
,filePath1(("..\\Experiments\\Dirs\\"))
{
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CMFC_1Dlg::DoDataExchange(CDataExchange* pDX)
{
CDialogEx::DoDataExchange(pDX);
DDX_Text(pDX, IDC_EDIT1, filePath1);
}
// then i try to get the string value with
CString txtname=filePath1;
_cprintf("Value %s\n", txtname); // but i always read just a "."
推荐答案
_cprintf("Value %S\n", txtname.GetString());
注意资本'S'
或者您可以投射:
_cprintf("Value %S\n", (LPCTSTR)txtname);
你最好使用编辑控制。要创建一个CEdit变量,右键单击VS中的编辑框,并选择添加成员变量,给变量一个名称,然后单击确定。
You would be better off using an edit control. To create a CEdit variable, right click on the edit box in VS and select "Add Member Variable", give the variable a name and click OK.
编辑框中的文本如下:
CEdit m_EditCtrl;
// ....
CString filePath1 = m_EditCtrl.GetWindowText()
这篇关于从MFC和VS2010中的编辑控件中读取文本的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!