如何创建文件usinf cfiledialog [英] How to cretae file usinf cfiledialog

问题描述

我想使用vc ++ mfc创建文件但是它的创建文件夹而不是文件



我尝试过：

i want to create file using vc++ mfc but its creating folder instead of file

What I have tried:

CString fileName;
    wchar_t* p = fileName.GetBuffer(FILE_LIST_BUFFER_SIZE);
    CFileDialog dlgFile(TRUE);
    OPENFILENAME& ofn = dlgFile.GetOFN();
    ofn.lpstrFilter = L"XML\0*.xml\0All\0*.*\0";
    ofn.Flags |= OFN_CREATEPROMPT;
    ofn.lpstrFile = p;
    ofn.nMaxFile = FILE_LIST_BUFFER_SIZE;

    if (dlgFile.DoModal() == IDOK)
    {
            fileName //its creating foldername

    }

could you please correct me if im doing wrong here

可以

could

推荐答案

CFileDialog 不会创建文件或目录。这是一个用于选择打开或保存文件的对话框，并返回所选名称。如果该文件尚不存在，则由该路径名创建该文件。



也无需在<$ c中传递缓冲区$ c> OPENFILENAME 结构，因为不允许多项选择。



然后只需使用 CFileDialog GetPathName（）用于检索全名的成员函数：

The CFileDialog will not create files or directories. It is a dialog to select files for opening or saving and returns the selected names. It is up to you to create the file from that path name if it does not exist yet.

There is also no need to pass a buffer in the OPENFILENAME structure because when not allowing multiple selections.

Then just use the CFileDialog GetPathName() member function to retrieve the full name:

CFileDialog dlgFileDlg (TRUE, "xml", fileName.GetString(),
      OFN_CREATEPROMPT, L"XML\0*.xml\0All\0*.*\0", this);
if ( dlgFile.DoModal () == IDOK )
{
    CString m_strPathname = dlgFile.GetPathName();
}

使用 OFN_ALLOWMULTISELECT 时将缓冲区设置为你的代码。然后返回的字符串包含 NULL 终止的目录名，后跟 NULL 终止的文件名最终被另一个<$ c终止$ c> NULL 字符。也许这就是你所观察到的。



但你仍然可以使用 CFileDialog 成员来获取循环：

When using OFN_ALLOWMULTISELECT set the buffer as done in your code. Then the returned string contains the NULL terminated directory name followed by also NULL terminated file names finally terminated by another NULL character. Maybe that is what you have observed.

But you can still use CFileDialog members to get the names within a loop:

if ( dlgFile.DoModal () == IDOK )
{
    POSITION pos = dlgFile.GetStartPosition();
    while (pos)
    {
        CString m_strPathname = dlgFile.GetNextPathName(pos);
    }
}

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