哪位哥哥给小弟看看 数据库,添加 代码哪错了~ 小弟刚学的~请各位给看看~在线等
string   aa; 
                         aa   =   username.Text;                              
                         OleDbConnection         conn=new         OleDbConnection();          
       conn.ConnectionString= "provider=microsoft.jet.oledb.4.0; "+ "data         source= "+Server.MapPath( "App_Data/#13413.ldb ");          
       conn.Open();          
                         string   Str   =    "insert   into   T_info2(F_title)   values( "this.username.Text; ") "; 
                         OleDbCommand   cmdadd   =   new   OleDbCommand(Str,   c.con); 
                         c.Open1(); 
                         cmdadd.ExecuteNonQuery(); 
                         c.Close1(); 
                         Response.Write( " <script   language=javascript> alert( '添加完毕! ') </script>  ");
------解决方案--------------------string Str =  "insert into T_info2(F_title) values( "+this.username.Text + ") "; 
------解决方案--------------------晕 c.Open1() 是个嘛玩意?
------解决方案--------------------try 
 { 
 string connstr = @ "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=  " + @ "C:\db1.mdb "; OleDbConnection conn = new OleDbConnection(connstr); 
 string Str =  "insert into T_info2(F_title) values( ' "+this.username.Text + " ') "; 
 OleDbCommand cmd = new OleDbCommand(Str,conn); 
 conn.Open(); 
 cmd.ExecuteNonQuery(); 
 conn.Close(); 
 } 
 catch(Exception ex) 
 { 
    MessageBox.Show(ex.Message); 
 }
------解决方案--------------------try 
 { 
 string connstr = @ "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=  " + @ "C:\db1.mdb "; OleDbConnection conn = new OleDbConnection(connstr); 
 string Str =  "insert into T_info2(F_title) values( ' "+this.username.Text + " ') "; 
 conn.Open(); 
 OleDbCommand cmd = new OleDbCommand(Str,conn); 
 cmd.ExecuteNonQuery(); 
 conn.Close(); 
 } 
 catch(Exception ex) 
 { 
    MessageBox.Show(ex.Message); 
 }