grid的一般用法

【核心代码】

using System;
using System.Collections.Generic;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using DevExpress.Data;

using System.Collections;
using DevExpress.XtraGrid;
using System.Diagnostics;
using DevExpress.Utils.Drawing;
using System.Threading;
using System.Reflection;
using DevExpress.Utils;
using DevExpress.XtraEditors;
using System.Runtime.InteropServices;
using DevExpress.XtraEditors.Repository;
using DevExpress.Utils.Menu;
using System.IO;
using System.Xml.Linq;
using DevExpress.XtraPrinting;
using DevExpress.XtraEditors.Drawing;
using DevExpress.XtraEditors.ViewInfo;
using DevExpress.Utils.Paint;
using System.ComponentModel;
using DevExpress.Utils.Win;
using DevExpress.Data.Filtering;
using System.Drawing.Drawing2D;
using DevExpress.XtraGrid.Views.Base;
using DevExpress.XtraGrid.Columns;
using DevExpress.XtraGrid.Views.Grid;
using DevExpress.XtraGrid.Views.Grid.ViewInfo;

namespace GridSample
{
    public partial class Form1 : Form
    {
        RepositoryItemCheckEdit chkedit = new RepositoryItemCheckEdit();

        public Form1()
        {
            InitializeComponent();
            BindingSource bs = new BindingSource();
            bs.DataSource = CreateTable(5);
            gridControl1.DataSource = bs;
        }
        private static DataTable CreateTable(int RowCount)
        {
            DataTable tbl = new DataTable();
            tbl.Columns.Add("Name", typeof(string));
            tbl.Columns.Add("ID", typeof(int));
            tbl.Columns.Add("Number", typeof(int));
            tbl.Columns.Add("Date", typeof(DateTime));
            tbl.Columns.Add("Select", typeof(bool));
            for (int i = 0; i < RowCount; i )
                tbl.Rows.Add(new object[] { String.Format("Name{0}", i), i, 3 - i, DateTime.Now.AddDays(i), false });
            return tbl;
        }



        protected void DrawCheckBox(Graphics g, Rectangle r, bool Checked)
        {
            DevExpress.XtraEditors.ViewInfo.CheckEditViewInfo info;
            DevExpress.XtraEditors.Drawing.CheckEditPainter painter;
            DevExpress.XtraEditors.Drawing.ControlGraphicsInfoArgs args;
            info = chkedit.CreateViewInfo() as DevExpress.XtraEditors.ViewInfo.CheckEditViewInfo;
            painter = chkedit.CreatePainter() as DevExpress.XtraEditors.Drawing.CheckEditPainter;
            info.EditValue = Checked;

            info.Bounds = r;
            info.PaintAppearance.ForeColor = Color.Black;
            info.CalcViewInfo(g);
            args = new DevExpress.XtraEditors.Drawing.ControlGraphicsInfoArgs(info, new DevExpress.Utils.Drawing.GraphicsCache(g), r);
            painter.Draw(args);
            args.Cache.Dispose();
        }

        private void CView_CustomDrawColumnHeader(object sender, ColumnHeaderCustomDrawEventArgs e)
        {
            if (e.Column == (sender as GridView).Columns["Select"])
            {
                e.Info.InnerElements.Clear();
                e.Info.Appearance.ForeColor = Color.Blue;
                e.Painter.DrawObject(e.Info);
                DrawCheckBox(e.Graphics, e.Bounds, getCheckedCount() == gridView1.DataRowCount);
                e.Handled = true;
            }
        }

        int getCheckedCount()
        {
            int count = 0;
            for (int i = 0; i < gridView1.DataRowCount; i )
            {
                if ((bool)gridView1.GetRowCellValue(i, gridView1.Columns["Select"]) == true)
                    count ;
            }
            return count;
        }
        void CheckAll() 
        {
            for (int i = 0; i < gridView1.DataRowCount; i )
            {
                gridView1.SetRowCellValue(i, gridView1.Columns["Select"], true);
            }
        }
        void UnChekAll() 
        {
            for (int i = 0; i < gridView1.DataRowCount; i )
            {
                gridView1.SetRowCellValue(i, gridView1.Columns["Select"], false);
            }
        }
        private void view_MouseDown(object sender, MouseEventArgs e)
        {
            if (e.Clicks == 1 && e.Button == MouseButtons.Left)
            {
                GridHitInfo info;
                Point pt = gridView1.GridControl.PointToClient(Control.MousePosition);
                info = gridView1.CalcHitInfo(pt);

                if (info.InColumn && info.Column.FieldName == "Select")
                {
                    if (getCheckedCount() == gridView1.DataRowCount)
                        UnChekAll();
                    else
                        CheckAll();
                }

            }
        }


    }
}