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Editorial Team
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Asked: 2026-05-23T07:49:33+00:00

I’m new to Visual Studio 2010. I’m creating a login form and in the

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I’m new to Visual Studio 2010. I’m creating a login form and in the login form there is a combobox and a textbox. The items in combobox is the list of positions of the employees. Whenever a user click the login button there should be an if statement in the login button so that there are forms will open in a specific position of the employees. Please help.

This is the screenshot:

enter image description here

This is the code:

private void loginbutton_Click(object sender, EventArgs e)
    {

        string MyConString = "SERVER=localhost;" + "DATABASE=timekeeping;" + "UID=root;" + "PASSWORD=admin;";
        MySqlConnection connection = new MySqlConnection(MyConString);
        MySqlCommand command = connection.CreateCommand();
        MySqlDataReader Reader;
        command.CommandText = "select username, password from users";
        connection.Open();
        Reader = command.ExecuteReader();
        while (Reader.Read())
        {
            if (username_login.Text == Reader[0].ToString() && password_login.Text == Reader[1].ToString().Trim())
            {
                username = Reader[0].ToString();
                password = Reader[1].ToString();
            }
        }

        if (username_login.Text == username && password_login.Text == password.Trim())
        {
            this.Hide();
            Home form = new Home();
            //form.userSession(lname, fname);
            form.Show();
        }
        else MessageBox.Show("Invalid User", "Login Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
        connection.Close();
    }

I haven’t included yet the combobox because I don’t know what to put in here.

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1 Answer

  1. Editorial Team

    I think you need to reconsider your design:

    It would be better if you stored the roles (position) of the users in the/a database.

    If someone correctly identifies himself load the role(s) for that user and then open the correct form/application. Do not let the user select his role.

    Have a look at the Membership and Role providers they’re not just for ASP.NET, you can use them in Winforms as well:

    Excellent set of tutorials:

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