谁告诉你必须使用问号?你原先的不挺好吗?
SqlConnection MyConn=new .........
string sql = "select * from members where userName=@name";
SqlCommand MyComm = new SqlCommand(sql ,MyConn); MyComm.Parameters.Add("@name",SqlDbType.VarChar,20);
.........
SqlConnection MyConn=new .........
string sql = "select * from members where userName=@name";
SqlCommand MyComm = new SqlCommand(sql ,MyConn); MyComm.Parameters.Add("@name",SqlDbType.VarChar,20);
.........
OleDbConnection con = new OleDbConnection("server=lo;uid=sa;pwd=sa;database=test;Provider=SQLOLEDB");
string sql = "select * from members where userName=@userName";
con.Open();
OleDbDataAdapter da = new OleDbDataAdapter(sql,con);
da.SelectCommand.Parameters.Add("@userName", this.TextBox1.Text.Trim());
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
this.DataGrid2.DataSource=ds.Tables[0];
this.DataGrid2.DataBind();
用问号该怎么写啊?
烦请各位老大指点一下,多谢啦~