c#备份数据库

string SqlStr1="server=(local);database=''"+this.DropDownList.SelectedValue+'"';Uid=sa;Pwd=";

string SqlStr2="backup database"+this.DropDownList1.SelectedValue+"to disk='"+this.TextBox1.Text.Trim()+".bak";

SqlConnection con=new SqlConection(SqlStr1);

con.Open();

try

{

if(File.Exists(this.TextBox1.Text.Trim()))

{

Response.Write("<Script>alert('此文件已存在，请重新输入');location='Default.aspx'</Script>");

return;

}

SqlCommand com=new SqlCommand(SqlStr2,con);

com.ExecuteNonQuery();

Response.Write("<Script>alert('备份数据成功!');location='default.aspx'</Script>");

 

}

catch(Exception error)

{

Response.Write(error.Message);

Response.Write("<Script>alert('数据备份失败!');</Script>");

} 

finally

{

con.Close();

}