QT界面开发-QFileDialog类选择文件,选择文件夹

选择文件

public:
    //EXCEL路径
    QString filepath;

private slots:
    int m_openFileButton(bool checked);


//写在ui.setupUi(this);下面
 connect(ui.openFileButton, SIGNAL(clicked(bool)), this, SLOT(m_openFileButton(bool)));



 int TestAandB::m_openFileButton(bool checked)
 {
     //定义文件对话框类
     QFileDialog *fileDialog = new QFileDialog(this);
     //定义文件对话框标题
     fileDialog->setWindowTitle(GBK::ToUnicode("选择EXCEL"));
     //设置默认文件路径
     fileDialog->setDirectory(".");
     //设置文件过滤器
     fileDialog->setNameFilter(tr("EXCEL(*.xlsx)"));
     //设置可以选择多个文件,默认为只能选择一个文件QFileDialog::ExistingFiles
     fileDialog->setFileMode(QFileDialog::ExistingFiles);
     //设置视图模式
     fileDialog->setViewMode(QFileDialog::Detail);
     //打印所有选择的文件的路径
     QStringList fileNames;
     if (fileDialog->exec())
     {
         fileNames = fileDialog->selectedFiles();
         if (fileNames.length() > 0)
         {
             ui.showFilePath->setText(fileNames[0]);
             filepath = fileNames[0];
         }
     }
     return 0;
 }

 选择文件getOpenFileName

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

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

int TestAandB::m_openFileButton(bool checked)
{
    //文件夹路径
    QString srcDirPath = QFileDialog::getExistingDirectory(this, GBK::ToUnicode("选择文件夹"),"/");
    if (srcDirPath.length() > 0)
    {
        ui.showFilePath->setText(srcDirPath);
    }
    return 0;
}

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