UltraWinGrid 动态实现多级多表头

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using Infragistics.Win;
using Infragistics.Win.UltraWinGrid;
namespace ultragridDemo
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private void Form1_Load(object sender, EventArgs e)
        {
            //新版本用下面的              
            this.ultraGrid1.DisplayLayout.Bands[0].RowLayoutStyle = RowLayoutStyle.GroupLayout;
            //旧版本用下面的  
            //this.ultraGrid1.DisplayLayout.Bands[0].UseRowLayout = true; 
            this.ultraGrid1.DisplayLayout.Override.AllowRowLayoutColMoving = Infragistics.Win.Layout.GridBagLayoutAllowMoving.AllowAll;
            modifyColumn("4", "测试4", 0, 0, 2, 1);
            modifyColumn("1", "测试1", 0, 1, 1, 2);
            modifyColumn("2", "测试2", 1, 1, 1, 1);
            modifyColumn("3", "测试3", 1, 2, 1, 1);
            //不需要显示单元格的列,单纯当表头显示的列  
            this.ultraGrid1.DisplayLayout.Bands[0].Columns["2"].RowLayoutColumnInfo.LabelPosition = LabelPosition.LabelOnly;
            this.ultraGrid1.DisplayLayout.Bands[0].Columns["4"].RowLayoutColumnInfo.LabelPosition = LabelPosition.LabelOnly;
            DataTable dt = new DataTable();
            dt.Columns.Add("1", typeof(string));
            dt.Columns.Add("3", typeof(string));
            dt.Rows.Add("as", "why");
            dt.Rows.Add("test", "test1");
            ultraGrid1.DataSource = dt;
            ultraGrid1.DataBind();  
        }
        /// <summary>  
        /// 合并表头函数  
        /// </summary>  
        /// <param name="columnName">列名</param>  
        /// <param name="caption">表头名</param>  
        /// <param name="x">表头横轴起始点</param>  
        /// <param name="y">表头纵轴起始点</param>  
        /// <param name="spanX">横向跨度</param>  
        /// <param name="spanY">纵向跨度</param>  
        private void modifyColumn(string columnName, string caption, int x, int y, int spanX, int spanY)
        {
            this.ultraGrid1.DisplayLayout.Bands[0].Columns.Add(columnName);
            UltraGridColumn GridColumn = this.ultraGrid1.DisplayLayout.Bands[0].Columns[columnName];
            GridColumn.Header.Caption = caption;
            GridColumn.Header.Appearance.TextVAlign = Infragistics.Win.VAlign.Middle;
            GridColumn.Header.Appearance.TextHAlign = Infragistics.Win.HAlign.Center;
            GridColumn.RowLayoutColumnInfo.OriginX = x;
            GridColumn.RowLayoutColumnInfo.OriginY = y;
            GridColumn.RowLayoutColumnInfo.SpanX = spanX;
            GridColumn.RowLayoutColumnInfo.SpanY = spanY;
            //GridColumn.CellActivation = Activation.Disabled;  
            GridColumn.RowLayoutColumnInfo.AllowCellSizing = RowLayoutSizing.None;
            GridColumn.SortIndicator = SortIndicator.Disabled;
        }  
    }
}