C# winform 分页控件 datagridview列宽度自适应

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;
using DevExpress.XtraEditors;
using DAL;
using WHC.Pager.Entity;

namespace CertificateRecognition
{
    public partial class Employees : DevExpress.XtraEditors.XtraForm
    {
        int width = 0;
        public Employees()
        {
            InitializeComponent();
            this.StartPosition = FormStartPosition.CenterScreen;
            this.WindowState = FormWindowState.Maximized;
            this.ShowInTaskbar = false;
            this.Text = "员工管理";
            this.winGridViewPager_Emp.ShowLineNumber = false;//显示行号
            this.winGridViewPager_Emp.dataGridView1.ContextMenuStrip = null;
            //this.winGridViewPager_Emp.PagerInfo.PageSize = 30;
        }

        private void Employees_Load(object sender, EventArgs e)
        {
            BindData();

            this.winGridViewPager_Emp.OnPageChanged += new EventHandler(winGridViewPager_Emp_OnPageChanged);
            this.winGridViewPager_Emp.OnStartExport += new EventHandler(winGridViewPager_Emp_OnStartExport);
            this.winGridViewPager_Emp.OnEditSelected += new EventHandler(winGridViewPager_Emp_OnEditSelected);
            this.winGridViewPager_Emp.OnDeleteSelected += new EventHandler(winGridViewPager_Emp_OnDeleteSelected);
            this.winGridViewPager_Emp.OnRefresh += new EventHandler(winGridViewPager_Emp_OnRefresh);
            this.winGridViewPager_Emp.OnAddNew += new EventHandler(winGridViewPager_Emp_OnAddNew);

        }

        private void winGridViewPager_Emp_OnPageChanged(object sender, EventArgs e)
        {
            BindData();
        }

        private void winGridViewPager_Emp_OnRefresh(object sender, EventArgs e)
        {

        }

        private void winGridViewPager_Emp_OnDeleteSelected(object sender, EventArgs e)
        {

        }

        private void winGridViewPager_Emp_OnAddNew(object sender, EventArgs e)
        {

        }

        private void winGridViewPager_Emp_OnEditSelected(object sender, EventArgs e)
        {

        }

        private void winGridViewPager_Emp_OnEndExport(object sender, EventArgs e)
        {

        }

        private void winGridViewPager_Emp_OnStartExport(object sender, EventArgs e)
        {

        }

        private void BindData()
        {
            this.winGridViewPager_Emp.DisplayColumns = "UserID,TelNum,RealName,LoginNum,LastLoTime,RegTime";
            this.winGridViewPager_Emp.AddColumnAlias("UserID", "编号");
            this.winGridViewPager_Emp.AddColumnAlias("TelNum", "电话号码");
            this.winGridViewPager_Emp.AddColumnAlias("RealName", "姓名");
            this.winGridViewPager_Emp.AddColumnAlias("LoginNum", "登录次数");
            this.winGridViewPager_Emp.AddColumnAlias("LastLoTime", "最后登录时间");
            this.winGridViewPager_Emp.AddColumnAlias("RegTime", "注册时间");
            int recount;
            int pageCount;
            winGridViewPager_Emp.DataSource = new DAL.UserDAL().GetUserPage("", "", winGridViewPager_Emp.PagerInfo);
            //对于DataGridView的每一个列都调整
            for (int i = 0; i < this.winGridViewPager_Emp.dataGridView1.Columns.Count; i++)
            {
                //将每一列都调整为自动适应模式
                this.winGridViewPager_Emp.dataGridView1.AutoResizeColumn(i, DataGridViewAutoSizeColumnMode.AllCells);
                //记录整个DataGridView的宽度
                width += this.winGridViewPager_Emp.dataGridView1.Columns[i].Width;
            }
            //判断调整后的宽度与原来设定的宽度的关系，如果是调整后的宽度大于原来设定的宽度，
            //则将DataGridView的列自动调整模式设置为显示的列即可，
            //如果是小于原来设定的宽度，将模式改为填充。
            if (width > this.winGridViewPager_Emp.Size.Width)
            {
                this.winGridViewPager_Emp.dataGridView1.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.DisplayedCells;
            }
            else
            {
                this.winGridViewPager_Emp.dataGridView1.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
            }
            this.winGridViewPager_Emp.dataGridView1.Refresh();
            

        }
    }
}