DataManager/Login.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 DataManager
{
    public partial class Login : Form
    {
        public Login()
        {
            InitializeComponent();
        }

        private void btnLogin_Click(object sender, EventArgs e)
        {

            string account = txtAccount.Text.Trim();

            if (account != null && account.Length == 11)
            {
                DataTable dt = DataAccess.Get_cm_user_by_cellphone(account);
                if (dt != null && dt.Rows.Count > 0)
                {

                    UIConstants.user.UserId = int.Parse(dt.Rows[0]["userid"].ToString());
                    UIConstants.user.UserName = dt.Rows[0]["username"].ToString();
                    UIConstants.user.OrgId = int.Parse(dt.Rows[0]["org_id"].ToString());

                    this.DialogResult = DialogResult.OK;
                }
                else
                {
                    MessageBox.Show("登录名不正确，请重新输入", "建议信息", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                    this.txtAccount.Focus();
                }
            }

        }
    }
}