C# 打開以對話框，獲取文件夾路徑 、文件的路徑、文件名

// 獲取文件夾絕對路徑    顯示在 txtbox 控件裏

System.Windows.Forms.FolderBrowserDialog folder = new System.Windows.Forms.FolderBrowserDialog();

if (folder.ShowDialog() == DialogResult.OK)
{
  this.txtboxPath.Text = folder.SelectedPath;              

  }

// 獲取文件和路徑名 一起顯示在 txtbox 控件裏

OpenFileDialog dialog = new OpenFileDialog();
if (dialog .ShowDialog() == DialogResult.OK)
{
  this.txtboxPath.SelectedText = dialog.FileName;                   

}

 //如果只顯示文件名

OpenFileDialog dialog = new OpenFileDialog();
if (dialog .ShowDialog() == DialogResult.OK)
{
  this.txtboxPath.SelectedText = dialog.SafeFileName;                   

}