Additional information: Incorrect syntax near 'VALUE'

Question

I ma beginning Developer, I m still studying and currently im stuck on a error. I'm learning a new technic on how to make proper sqlconnections .. but seems as i cannot find out whats wrong.

This is a simple program where, the user is scanning a bar code to fill a textbox. And depending on that value. Rest of the textboxes will be filled in.

An exception of type 'System.Data.SqlClient.SqlException' occurred in System.Data.dll but was not handled in user code .Additional information: Incorrect syntax near 'ProductBarcode'.

This is my code right now:

protected void PBarcodeTxt_TextChanged(object sender, EventArgs e)
{

        string cmd = "SELECT ProductNaam, ProductPrijs, ProductOmschrijving, ProductBarcode" +
                     "FROM Producten" +
                     "WHERE ProductBarcode LIKE '@Barcode'";

        using (SqlConnection connection = new SqlConnection(cstring))
        {

            SqlCommand command = new SqlCommand(cmd, connection);
            command.Parameters.Add("@Barcode", SqlDbType.VarChar, 50).Value = PBarcodeTxt.Text;

            try
            {
                connection.Open();
                SqlDataReader rdr = command.ExecuteReader();
                rdr.Read();

                PNaamTxt.Text = (rdr["ProductNaam"].ToString());
                POmschrijvingTxt.Text = (rdr["ProductOmschrijving"].ToString());
                PPrijsTxt.Text = (rdr["ProductPrijs"].ToString());
                // PBarcodeTxt.Text = (rdr["ProductBarcode"].ToString());
            }
           finally
            {
                connection.Close();
            }

Thank you for your time and effort.

Answer 1

In your command you are missing a number of spaces, try the following (notice the spaces before FROM and WHERE:

string cmd = "SELECT ProductNaam, ProductPrijs, ProductOmschrijving, ProductBarcode" +
                     " FROM Producten" +
                     " WHERE ProductBarcode LIKE '@Barcode'";

When you concatenate strings in this way you need to explicitly enter new lines and spaces, what you had before when concatenated would actually be:

string cmd = "SELECT ProductNaam, ProductPrijs, ProductOmschrijving, ProductBarcodeFROM ProductenWHERE ProductBarcode LIKE '@Barcode'";