string does not contain a definition for Parameters

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Hello,
I am new to C# and am stuck on this error. All i want to do is get info from the user and save it to a database. Any help is much appreciated. Thanks in advanced.

VB

Error   1   'string' does not contain a definition for 'Parameters' and no extension method 'Parameters' accepting a first argument of type 'string' could be found (are you missing a using directive or an assembly reference?)

Here is the code

string pat = textBox1.Text.Trim();
            string res = textBox2.Text.Trim();
            
            if (@pat.Length == 0 || @res.Length == 0)
            {
                MessageBox.Show("Please enter something in the boxes.");
                return;
            }
            MessageBox.Show(@pat +" " + @res);
           
            SqlConnection cnn = new SqlConnection(OMSDB_Connection_String);
            string command = "Insert INTO OTM_unsubscriptions (dbPatCnt, dbRespCnt, Email, PracticeID) " +
                                 " VALUES (@pat,@res, 1, 1)";
            SqlCommand cmd = new SqlCommand(command, cnn);
            command.Parameters.Add(new SqlParameter(@pat, "valueOf_dbPatCnt"));
            command.Parameters.Add(new SqlParameter(@res, "valueOf_dbRespCnt"));
            cnn.Open();
            cmd.ExecuteNonQuery();
            cnn.Close();

Posted 3-May-11 14:09pm

Derek1214

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Derek1214 4-May-11 0:03am

Thanks for the help.

1 solution

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walterhevedeich · Accepted Answer · 2011-05-03T15:31:00

First of all, why are you putting @ on your string variables? @ is only used on SQL and not C# variables. You might want to change your code to this.

string pat = textBox1.Text.Trim();
            string res = textBox2.Text.Trim();
            
            if (pat.Length == 0 || res.Length == 0)
            {
                MessageBox.Show("Please enter something in the boxes.");
                return;
            }
            MessageBox.Show(pat +" " + res);
           
            SqlConnection cnn = new SqlConnection(OMSDB_Connection_String);
            string command = "Insert INTO OTM_unsubscriptions (dbPatCnt, dbRespCnt, Email, PracticeID) " +
                                 " VALUES (@valueOf_dbPatCnt,@valueOf_dbRespCnt, 1, 1)";
            SqlCommand cmd = new SqlCommand(command, cnn);
            command.Parameters.Add(new SqlParameter("@valueOf_dbPatCnt", pat));
            command.Parameters.Add(new SqlParameter("@valueOf_dbRespCnt", res));
            cnn.Open();
            cmd.ExecuteNonQuery();
            cnn.Close();

I simply removed the @ on the variables and fixed the code where you added your parameters. It seems your still a little confused with ADO.Net. I suggest you read more.