www.pudn.com > EMS.rar > frmLogin.cs

using System; 
using System.Collections.Generic; 
using System.ComponentModel; 
using System.Data; 
using System.Drawing; 
using System.Text; 
using System.Windows.Forms; 
 
namespace EMS 
{ 
    public partial class frmLogin : Form 
    { 
        BaseClass.BaseInfo baseinfo = new EMS.BaseClass.BaseInfo(); 
        BaseClass.cPopedom popedom = new EMS.BaseClass.cPopedom(); 
        public frmLogin() 
        { 
            InitializeComponent(); 
        } 
 
        private void btnLogin_Click(object sender, EventArgs e) 
        { 
            if (txtUserName.Text == string.Empty) 
            { 
                MessageBox.Show("用户名称不能为空！", "错误提示", MessageBoxButtons.OK, MessageBoxIcon.Error); 
                return; 
            } 
            DataSet ds = null; 
            popedom.SysUser = txtUserName.Text; 
            popedom.Password = txtUserPwd.Text; 
            ds=baseinfo.Login(popedom); 
            if (ds.Tables[0].Rows.Count > 0) 
            { 
                frmMain frm_main = new frmMain(); 
                frm_main.Show(); 
                if (Convert.ToBoolean(ds.Tables[0].Rows[0]["stock"])) frm_main.tlmBuy.Enabled = true; 
                if (Convert.ToBoolean(ds.Tables[0].Rows[0]["vendition"])) frm_main.tlmSale.Enabled = true; 
                if (Convert.ToBoolean(ds.Tables[0].Rows[0]["storage"])) frm_main.tlmStock.Enabled = true; 
                if (Convert.ToBoolean(ds.Tables[0].Rows[0]["system"])) frm_main.tlmSystem.Enabled = true; 
                if (Convert.ToBoolean(ds.Tables[0].Rows[0]["base"])) frm_main.tlmBase.Enabled = true; 
                this.Visible = false; 
            } 
            else 
            { 
                MessageBox.Show("用户名称或密码不正确！","错误提示",MessageBoxButtons.OK,MessageBoxIcon.Error); 
            } 
        } 
 
        private void txtUserName_KeyUp(object sender, KeyEventArgs e) 
        { 
            if (e.KeyValue == 13) txtUserPwd.Focus(); 
        } 
 
        private void txtUserPwd_KeyUp(object sender, KeyEventArgs e) 
        { 
            if (e.KeyValue == 13) btnLogin.Focus(); 
        } 
 
        private void btnExit_Click(object sender, EventArgs e) 
        { 
            this.Close(); 
        } 
    } 
}