Question

In this section I get the error

SqlConnection conn = new SqlConnection(@"Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\Database.mdf;Integrated Security=True;User Instance=True");

try
{
    SqlCommand cmd = new SqlCommand("delete from sug where IDbro='" + ime + "'and AtributValue='+atr+' and [+/-]='+rat+' ", conn);
    conn.Open();
    cmd.ExecuteNonQuery();
}
catch (SqlException ex)
{
}
finally
{
     conn.Close();
}
GridView2.DataBind();
promenaP();
}

I have issue with database deleting error exception

Answer 1

Try this

SqlCommand cmd = new SqlCommand("delete from sug where IDbro='" + ime + "'and AtributValue='"+atr+"' and [+/-]='"+rat+"' ", conn);

add “”

I had similar issue programming android sqlite…