QT界面开发-QFileDialog类选择文件,选择文件夹

选择文件

 1 public:
 2     //EXCEL路径
 3     QString filepath;
 4 
 5 private slots:
 6     int m_openFileButton(bool checked);
 7 
 8 
 9 //写在ui.setupUi(this);下面
10  connect(ui.openFileButton, SIGNAL(clicked(bool)), this, SLOT(m_openFileButton(bool)));
11 
12 
13 
14  int TestAandB::m_openFileButton(bool checked)
15  {
16      //定义文件对话框类
17      QFileDialog *fileDialog = new QFileDialog(this);
18      //定义文件对话框标题
19      fileDialog->setWindowTitle(GBK::ToUnicode("选择EXCEL"));
20      //设置默认文件路径
21      fileDialog->setDirectory(".");
22      //设置文件过滤器
23      fileDialog->setNameFilter(tr("EXCEL(*.xlsx)"));
24      //设置可以选择多个文件,默认为只能选择一个文件QFileDialog::ExistingFiles
25      fileDialog->setFileMode(QFileDialog::ExistingFiles);
26      //设置视图模式
27      fileDialog->setViewMode(QFileDialog::Detail);
28      //打印所有选择的文件的路径
29      QStringList fileNames;
30      if (fileDialog->exec())
31      {
32          fileNames = fileDialog->selectedFiles();
33          if (fileNames.length() > 0)
34          {
35              ui.showFilePath->setText(fileNames[0]);
36              filepath = fileNames[0];
37          }
38      }
39      return 0;
40  }

选择文件getOpenFileName

 1 int TestAandB::m_openFileButton(bool checked)
 2 {
 3     // 选择要打开的文件
 4     QString filepath = QFileDialog::getOpenFileName(this, GBK::ToUnicode("选择文件"), GBK::ToUnicode("*.txt"), GBK::ToUnicode("文本文档(*.txt)"));
 5     if (filepath.length() > 0)
 6     {
 7         ui.showFilePath->setText(filepath);
 8     }
 9     return 0;
10 }

保存文件getSaveFileName

 1 int TestAandB::m_openFileButton(bool checked)
 2 {
 3     // 选择保存路径
 4     QString filepath = QFileDialog::getSaveFileName(this,GBK::ToUnicode("保存"),GBK::ToUnicode("*.txt"),GBK::ToUnicode("文本文档(*.txt)"));
 5     if (filepath.length() > 0)
 6     {
 7         ui.showFilePath->setText(filepath);
 8     }
 9     return 0;
10 }

选择文件夹getExistingDirectory

 1 int TestAandB::m_openFileButton(bool checked)
 2 {
 3     //文件夹路径
 4     QString srcDirPath = QFileDialog::getExistingDirectory(this, GBK::ToUnicode("选择文件夹"),"/");
 5     if (srcDirPath.length() > 0)
 6     {
 7         ui.showFilePath->setText(srcDirPath);
 8     }
 9     return 0;
10 }

...