private void btnBak_Click(object sender, EventArgs e)
{
string fileName = "";
SaveFileDialog saveFile = new SaveFileDialog();
saveFile.DefaultExt = ".bak";
saveFile.ShowDialog();
fileName = saveFile.FileName;
if (fileName == "")
{
return;
}
baseinfo.BackUp(fileName);
MessageBox.Show("数据库备份--成功！", "成功提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
}