User authentication

Question

I have a Log in form which connect to database to check username and password, in this User table I have a roleID which is FK from Role table (RoleID, Name, Description)

In C# Windows form application, I would like to check if it is "Admin" then show some text box on different form,

How can I implement code for this.

Thank you.

Answer 1

i solved it 

Select Cast(SUM((O_ttotal + P_vatto) * (P_totdis / 100)) As Decimal(9,2)) As TotalDiscount From PRO_BILL

Answer 2

@Abrar that i also know, in this way i get two answers i want the whole total of (A+B+C) not (A+B) and C

Answer 3

HI, when you are using the aggregate sql function then you have to define the group by clause.

like 
cmd = new SqlCommand("Select (SUM(P_ttotal)+SUM(P_vatto)* (P_totdis)/100) as dis  from PRO_BILL group by P_totdis", conn);