程序出错了 请朋友帮帮忙 谢啦

Question

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;namespace 人力资源管理系统
{
    public partial class frmLogin : Form
    {
        public frmLogin()
        {
            InitializeComponent();
        }        private void 登录窗体_Load(object sender, EventArgs e)
        { }
        public bool bResult = false;
        public string UserId = "";
        public string UserPwd = "";
        private void txbPwd_KeyPress(object sender, System.WindowsFormsSection.FormStartPosition.KeyPressEventArgs e)
        {
            if (e.KeyChar == (char)13 && (UserControl != ""))
            {
                this.btnSummit_Click(null, null);
            }
        }
        private void txbUserId_KeyPress(object sender, System.WindowsFormsSection.FormStartPosition.KeyPressEventArgs e)
        {
            if (e.KeyChar == (char)13)
            {
                this.txbPwd.Focus();
            }
        }
        private void txbUserId_Leave(object sender, System.EventArgs e)
        {
            DataBase db = new DataBase();
            DataView dv = db.RunSelectSQL("Select 密码 from 用户清单 where用户编码='" + this.txbUserId.Text.Trim() + "'");
            if (dv.Count == 0)
            {
                this.txbUserId.Txet = "";
                this.txbPwd.Txet = "";            }
            else
            {
                UserId = this.txbUserId.Text.Trim();
                this.UserPwd = dv.Item[0]["密码"];            }
            db.Dispose();
        }
        private void btnSummit_Click(object sender, System.EventArgs e)
        {
            if ((this.UserPwd.Trim() == this.txbPwd.Text.Trim()) && UserPwd != "")
            {
                bResult = ture;
                this.Close();
            }
            else
            {
                bResult = false;
                MessageBox.Show("请确认你的密码是否证正确");
            }
        }
        private void btnClear_Click(object sender, System.EventArgs e)
        {
            this.CloseReason();
            Application.Exit();
        }
    }
}
    
错误 1 命名空间“System”中不存在类型或命名空间名称“WindowsFormsSection”(是缺少程序集引用吗?) C:\Documents and Settings\Owner\桌面\代码(1)\登录窗体.cs 23 60 人力资源管理系统

Answer 1

System.WindowsFormsSection.FormStartPosition.KeyPressEventArgs
->
System.Windows.Forms.KeyPressEventArgs