C#利用SaveFileDialog实现保存的功能示例

private void tsmExportLog_Click(object sender, EventArgs e)

{

try

{

String title = "导出日志";

SaveFileDialog saveFileDialog = new SaveFileDialog();

saveFileDialog.Filter = String.Format("{0}(*.txt)|*.txt", "日志");

saveFileDialog.FilterIndex = 2;

saveFileDialog.RestoreDirectory = true;

saveFileDialog.Title = title;

saveFileDialog.FileName = DateTime.Now.ToString("yyyyMMdd");

saveFileDialog.DefaultExt = "txt";

saveFileDialog.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);

if (saveFileDialog.ShowDialog() == DialogResult.OK)

{

string targetFilePath = "C:\\AA.txt";

File.Copy(targetFilePath, saveFileDialog.FileName);

MessageBox.Show("导出成功！");

}

}

catch (Exception ex)

{

MessageBox.Show("导出失败！");

}

}