C# FileDialog 文件选择

1、SaveFileDialog

            OpenFileDialog openfile = new OpenFileDialog();
            //初始显示文件目录
            //openfile.InitialDirectory = @"";
            openfile.Title = "请选择要发送的文件";
            //过滤文件类型
            openfile.Filter = "文本文件|*.txt|可执行文件|*.exe|STOCK|STOCK.txt|所有文件类型|*.*";
            if (DialogResult.OK == openfile.ShowDialog())
            {
                //将选择的文件的全路径赋值给文本框
                textBox1.Text = openfile.FileName;
            }
      

2、SaveFileDialog

 SaveFileDialog savefile = new SaveFileDialog();
            //如果文件名未写后缀名则自动添加     *.*不会自动添加后缀名
            savefile.AddExtension = true;
            savefile.Filter = "可执行文件|*.exe|文本文件|*.txt|STOCK|STOCK.txt|所有文件|*.*";
            if(DialogResult.OK==savefile.ShowDialog())
            {
                textBox1.Text = savefile.FileName;
            }