Frm_CreateAccount.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Hostel_Managment_System
{
    public partial class Frm_CreateAccount : Form
    {
        DB_Function function = new DB_Function();
        string query;
        public Frm_CreateAccount()
        {
            InitializeComponent();
        }

        private void BtnBack_Click(object sender, EventArgs e)
        {
            FrmLofgin lf = new FrmLofgin();
            this.Close();
            lf.Show();
        }

        private void BtnExit_Click(object sender, EventArgs e)
        {
            Application.Exit();
        }

        private void BtnRegister_Click(object sender, EventArgs e)
        {
           
                if (TxtsecretKey.Text != "" && TxtUID.Text != "" && TxtUserName.Text != "" && TxtPass.Text != "")
                {
                    if (TxtsecretKey.Text == "0292")
                    {
                        try
                        {


                            query = "insert into UserDetails(Name,UserID,Password) values ('" + TxtUserName.Text + "','" + TxtUID.Text + "','" + TxtPass.Text + "')";
                            function.SetData(query, "User added.");
                            FrmLofgin lf = new FrmLofgin();
                            this.Close();
                            lf.Show();
                        }
                        catch
                        {
                            MessageBox.Show("User already exists... or" + Environment.NewLine + " Try diffrent User Id and Password", "Information", MessageBoxButtons.OK, MessageBoxIcon.Information);
                        }

                }
                    else
                    {
                        LBLMsg_InvKey.Visible = true;
                    }
                }
                else
                {
                   
                        MessageBox.Show("Fill all details.","Error",MessageBoxButtons.OK,MessageBoxIcon.Error);

                }
        }

        private void TxtsecretKey_Click(object sender, EventArgs e)
        {
            if (LBLMsg_InvKey.Visible == true)
                LBLMsg_InvKey.Visible = false;
            else
                LBLMsg_InvKey.Visible = false;
        }
    }
}