Searching using a windows form on the database

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Hi,

I have a piece of code which is on a Windows Form. I need to Search using 2 values entered in 2 different Textboxes from a MySQL database (i am searching using Name and User-id if they exist in the database and if not display proper error messages). Can someone please explain how this can be done with an example.

Thanks,
Tushar.

Posted 10-Jul-12 8:06am

tusharmathankar

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[no name] 10-Jul-12 14:12pm

What have you tried?

tusharmathankar 10-Jul-12 14:15pm

Just a simple select * from table where column_name like '"% Textbox2.text %"' I am not sure how to count the number of rows in the table and then check for the end of the Table and then return the appropriate values when matched

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OriginalGriff · Accepted Answer · 2012-07-10T08:16:00

Try:

SQL

SELECT * FROM myTable WHERE name='Name' AND userId='UserId'

Just do it with a parametrized query:

C#

using (SqlConnection con = new SqlConnection(strConnect))
    {
    con.Open();
    using (SqlCommand cmd = new SqlCommand("SELECT iD, description FROM myTable WHERE userName=@UN AND userId=@UI", con))
        {
        cmd.Parameters.AddWithValue("@UN", myUserNameTextBox.Text);
        cmd.Parameters.AddWithValue("@UI", myUserIdTextBox.Text);
        using (SqlDataReader reader = cmd.ExecuteReader())
            {
            while (reader.Read())
                {
                int id = (int) reader["iD"];
                string desc = (string) reader["description"];
                Console.WriteLine("ID: {0}\n    {1}", iD, desc);
                }
            }
        }
    }