.net winform 学习笔记---数据库备份工具

private void ButtonBackUp_Click(object sender, System.EventArgs e)
{
this.Cursor = Cursors.WaitCursor;
string _DBServ = Btnback1.Text;
string _DBName = Btnback2.Text;
string _DBUser = Btnback3.Text;
string _DBPass = Btnback4.Text;

string m_ConnectionStr = "data source="+_DBServ+";initial catalog=master;user id="+_DBUser+";pwd="+_DBPass+";Connect Timeout=5;";
SqlConnection _Conn = new SqlConnection(m_ConnectionStr);
try
{
_Conn.Open();
SaveFileDialog _SaveFileDialog = new SaveFileDialog(); //保存的文件目录路径
_SaveFileDialog.Title = "请选择备份保存的目录";
_SaveFileDialog.Filter="(*.Bak)|*.Bak;|(All Files)|*.*";
if(_SaveFileDialog.ShowDialog()==DialogResult.OK)
{

string _FolderPath = _SaveFileDialog.FileName;

SqlCommand _Comm = new SqlCommand("",_Conn);
//执行数据库备份命令
//_Comm.CommandText = "BACKUP DATABASE "+_DBName+" TO DISK = "+ _FolderPath +" ";
_Comm.CommandText = "BACKUP DATABASE "+_DBName+" TO DISK = '"+ _FolderPath +"' ";
_Comm.ExecuteNonQuery();
this.Cursor = Cursors.Arrow;
_Conn.Close();
MessageBox.Show("备份数据成功!","提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
}
this.Cursor = Cursors.Arrow;

}
catch(System.Exception error)
{
this.Cursor = Cursors.Arrow;
MessageBox.Show("异常:"+error.Message,"提示",MessageBoxButtons.OK,MessageBoxIcon.Error);
}
this.Cursor = Cursors.Arrow;
}

private void buttonXP1_Click(object sender, System.EventArgs e)
{
OpenFileDialog _OpenFileDialog = new OpenFileDialog();
_OpenFileDialog.Title="请选择文件恢复";
_OpenFileDialog.Filter="(*.Bak)|*.Bak;|(All Files)|*.*";
if (_OpenFileDialog.ShowDialog() == DialogResult.OK)
{
BtnRestory.Text=_OpenFileDialog.FileName;
}
}

private void ButtonRestory_Click(object sender, System.EventArgs e)
{
if(MessageBox.Show("该操作将数据覆盖!!/n/n如果选择[是],将原来的数据覆盖/n/n如果选择[否],将取消恢复","提示",MessageBoxButtons.YesNo,MessageBoxIcon.Question)==DialogResult.No)
return;
if(MessageBox.Show("请再次确认,该操作不能恢复!!/n/n如果选择[是],将原来的数据覆盖/n/n如果选择[否],将取消恢复","提示",MessageBoxButtons.YesNo,MessageBoxIcon.Warning)==DialogResult.No)
return;
this.Cursor = Cursors.WaitCursor;

string _DBServ = R1.Text;
string _DBName = R2.Text;
string _DBUser = R3.Text;
string _DBPass = R4.Text;

string m_ConnectionStr = "data source="+_DBServ+";initial catalog=master;user id="+_DBUser+";pwd="+_DBPass+";Connect Timeout=5;";
SqlConnection _Conn = new SqlConnection(m_ConnectionStr);
try
{
_Conn.Open();
//SqlCommand _Comm = new SqlCommand("restore filelistonly from disk='"+_FolderPath+@"/"+_DBName+@".bak'",_Conn);//获得原来的逻辑名称以及物理路径
string _FolderPath="d:";
string _DBPath = "ces";
SqlCommand _Comm = new SqlCommand("restore filelistonly from disk='"+_FolderPath+@"/"+_DBPath+@".bak'",_Conn);//获得原来的逻辑名称以及物理路径
SqlDataReader _Reader = null;
_Reader = _Comm.ExecuteReader();
string[] _LogName = new string[2];//获得逻辑名称
string[] _PhiPath = new string[2];//获得物理路径
int j = 0;
while(_Reader.Read())
{
_LogName[j] = (string)_Reader.GetValue(0);
_PhiPath[j] = (string)_Reader.GetValue(1);
j = j+1;
}
_Reader.Close();
MessageBox.Show(_LogName[0]);

//执行数据库恢复脚本
_Comm = new SqlCommand("",_Conn);
_Comm.CommandText ="RESTORE DATABASE [" + _DBName + "] FROM DISK = '" + BtnRestory.Text + "' With Move '"+ _LogName[0] +
"' TO '" +_PhiPath[0]+ "', Move '" + _LogName[1] + "' TO '" + _PhiPath[1]+ "'";
_Comm.ExecuteNonQuery();

this.Cursor = Cursors.Arrow;
MessageBox.Show("数据恢复成功!","提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
_Conn.Close();

this.Cursor = Cursors.Arrow;

}
catch(System.Exception error)
{
this.Cursor = Cursors.Arrow;
MessageBox.Show("异常:"+error.Message,"错误",MessageBoxButtons.OK,MessageBoxIcon.Error);
}
}