Comparing two columns

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C#2.0

C#

Hi all,

I am new to C#. I want to compare 2 columns in datagridview. If one member having two polacytypes then alert message needs to appear as "two policy types for single member ic".
My code is as below:

string str="select * from polacyalert where memberic='" + mcno + "'";          
SqlDataAdapter da =new SqlDataAdapter(str,con);
DataSet ds = new DataSet();
da.Fill(ds, "polacyalert");
BindingSource bsource = new BindingSource();
bsource.DataSource = ds.Tables["polacyalert"];
dgv.DataSource = bsource.DataSource;

Please help me on this.

Thanks & Regards,
Uma.