Question

I have a query in Mysql like the following:

SELECT        id, nome, sigla
FROM            pais
WHERE    (estado=@estado)

In my code without using the parameter I would simply use:

this.cidadeTableAdapter.Fill(this.anfeDataSet1.cidade); 

and everything would be ok.

More using the parameter how do I put a value on the parameter and pass to the TableAdapter?

Answer 1

Take a look at this: http://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqlcommand.parameters.aspx

SqlCommand com = new SqlCommand("SELECT id, nome, sigla FROM  pais WHERE (estado=@estado)", connection);
com.Parameters.Add(new SqlParameter("estado", value)); 
        SqlDataAdapter cidadeTableAdapter = new SqlDataAdapter();
        cidadeTableAdapter.SelectCommand = this.com;
        DataSet set = new DataSet("return");
        cidadeTableAdapter.Fill(set);
        this.com.Connection.Close();
        return set;

Best option btw is to use the connection to the database so you don’t have to close it explicitly.