XGrid绑定(转)

1. using System;
2. using System.Collections.Generic;
3. using System.ComponentModel;
4. using System.Windows.Forms;
5. using DevExpress.XtraGrid.Columns;
   
6. using DevExpress.XtraGrid.Views.Base;
7. using DevExpress.XtraGrid.Views.BandedGrid;
8. using DevExpress.XtraEditors.Repository;
10. namespace XtraGridDemo1
11. {
12. public partial class Form1 : DevExpress.XtraEditors.XtraForm
13. {
14. public Form1()
15. {
16. InitializeComponent();
18. //首先拖到窗体上一个GridControl，在表格上点击“Click here to change view”链接，在弹出菜单中选择“convert to”-->“AdvBandedGridView”。
    
20. InitGrid();
21. }
23. ///初始化表格
24. private void InitGrid()
25. {
27. // advBandedGridView1是表格上的默认视图，注意这里声明的是：BandedGridView
28. BandedGridView view = advBandedGridView1 as BandedGridView;
30. view.BeginUpdate(); //开始视图的编辑，防止触发其他事件
31. view.BeginDataUpdate(); //开始数据的编辑
    
33. view.Bands.Clear();
35. //修改附加选项
36. view.OptionsView.ShowColumnHeaders = false; //因为有Band列了，所以把ColumnHeader隐藏
37. view.OptionsView.ShowGroupPanel = false; //如果没必要分组，就把它去掉
38. view.OptionsView.EnableAppearanceEvenRow = false; //是否启用偶数行外观
39. view.OptionsView.EnableAppearanceOddRow = true; //是否启用奇数行外观
40. view.OptionsView.ShowFilterPanelMode = ShowFilterPanelMode.Never; //是否显示过滤面板
41. view.OptionsCustomization.AllowColumnMoving = false; //是否允许移动列
42. view.OptionsCustomization.AllowColumnResizing = false; //是否允许调整列宽
43. view.OptionsCustomization.AllowGroup = false; //是否允许分组
44. view.OptionsCustomization.AllowFilter = false; //是否允许过滤
45. view.OptionsCustomization.AllowSort = true; //是否允许排序
46. view.OptionsSelection.EnableAppearanceFocusedCell = true; //???
47. view.OptionsBehavior.Editable = true; //是否允许用户编辑单元格
    
49. //添加列标题
50. GridBand bandID = view.Bands.AddBand("ID");
51. bandID.Visible = false; //隐藏ID列
52. GridBand bandName = view.Bands.AddBand("姓名");
53. GridBand bandSex = view.Bands.AddBand("性别");
54. GridBand bandBirth = view.Bands.AddBand("出生日期");
55. GridBand bandScore = view.Bands.AddBand("分数");
56. GridBand bandMath = bandScore.Children.AddBand("数学");
57. GridBand bandChinese = bandScore.Children.AddBand("语文");
58. GridBand bandEnglish = bandScore.Children.AddBand("英语");
59. GridBand bandSubTotal = bandScore.Children.AddBand("小计");
60. GridBand bandRemark = view.Bands.AddBand("备注");
62. //列标题对齐方式
63. bandName.AppearanceHeader.TextOptions.HAlignment = DevExpress.Utils.HorzAlignment.Center;
64. bandSex.AppearanceHeader.TextOptions.HAlignment = DevExpress.Utils.HorzAlignment.Center;
65. bandBirth.AppearanceHeader.TextOptions.HAlignment = DevExpress.Utils.HorzAlignment.Center;
66. bandScore.AppearanceHeader.TextOptions.HAlignment = DevExpress.Utils.HorzAlignment.Center;
67. bandMath.AppearanceHeader.TextOptions.HAlignment = DevExpress.Utils.HorzAlignment.Center;
68. bandChinese.AppearanceHeader.TextOptions.HAlignment = DevExpress.Utils.HorzAlignment.Center;
69. bandEnglish.AppearanceHeader.TextOptions.HAlignment = DevExpress.Utils.HorzAlignment.Center;
70. bandSubTotal.AppearanceHeader.TextOptions.HAlignment = DevExpress.Utils.HorzAlignment.Center;
71. bandRemark.AppearanceHeader.TextOptions.HAlignment = DevExpress.Utils.HorzAlignment.Center;
73. //模拟几个数据
74. List<Record> listDataSource = new List<Record>();
    
75. listDataSource.Add(new Record(1, "张三","男",Convert.ToDateTime("1989-5-6") ,115.5f,101,96,""));
76. listDataSource.Add(new Record(2, "李四", "女", Convert.ToDateTime("1987-12-23"), 92, 85, 87, ""));
77. listDataSource.Add(new Record(3, "王五", "女", Convert.ToDateTime("1990-2-11"), 88, 69, 41.5f, ""));
78. listDataSource.Add(new Record(4, "赵六", "男", Convert.ToDateTime("1988-9-1"), 119, 108, 110, "备注行"));
79. //绑定数据源并显示
    
80. gridControl1.DataSource = listDataSource;
81. gridControl1.MainView.PopulateColumns();
83. //[小计]这一列因为没绑定数据源，所以需要手动添加
84. //(有点复杂，慢慢看吧)
85. string[] fieldNames = new string[] { "SubTotal" };
86. GridColumn column; //声明单列
87. column = view.Columns.AddField(fieldNames[0]); //添加一个数据字段
88. column.VisibleIndex = view.Columns.Count -1; //设置该列在编辑视图时的显示位置(倒数第二列)
    
89. column.UnboundType = DevExpress.Data.UnboundColumnType.Decimal;
90. column.OptionsColumn.AllowEdit = false; //此列不可编辑
91. column.Visible = true;
92. view.Columns.Add(column); //视图中添加一列
94. //绑定事件，当[分数]改变时[小计]也跟着变
95. //(好像只有在绑定事件里才能改变该单元格数值，直接修改无效)
96. view.CustomUnboundColumnData += new
97. DevExpress.XtraGrid.Views.Base.CustomColumnDataEventHandler(advBandedGridView1_CustomUnboundColumnData);
99. //[性别]列绑定ComboBox
100. RepositoryItemComboBox riCombo = new RepositoryItemComboBox();
101. riCombo.Items.AddRange(new string[] {"男", "女"});
102. gridControl1.RepositoryItems.Add(riCombo);
103. view.Columns["Sex"].ColumnEdit = riCombo;
105. //[出生年月]列绑定Date
106. RepositoryItemDateEdit riDate = new RepositoryItemDateEdit();
107. gridControl1.RepositoryItems.Add(riDate);
108. view.Columns["Birth"].ColumnEdit = riDate;
110. //[分数]列绑定SpinEdit
111. RepositoryItemSpinEdit riSpin = new RepositoryItemSpinEdit();
112. gridControl1.RepositoryItems.Add(riSpin);
113. view.Columns["Math"].ColumnEdit = riSpin;
114. view.Columns["Chinese"].ColumnEdit = riSpin;
115. view.Columns["English"].ColumnEdit = riSpin;
117. //[备注]列绑定MemoExEdit
118. RepositoryItemMemoExEdit riMemoEx = new RepositoryItemMemoExEdit();
119. gridControl1.RepositoryItems.Add(riMemoEx);
120. view.Columns["Remark"].ColumnEdit = riMemoEx;
122. //小计列添加汇总
123. view.OptionsView.ShowFooter = true; //显示表格页脚
124. view.Columns["SubTotal"].SummaryItem.FieldName = "SubTotal";
125. view.Columns["SubTotal"].SummaryItem.DisplayFormat = "{0:f2}";
126. view.Columns["SubTotal"].SummaryItem.SummaryType = DevExpress.Data.SummaryItemType.Average;
128. //将标题列和数据列对应
129. view.Columns["ID"].OwnerBand = bandID;
130. view.Columns["Name"].OwnerBand = bandName;
131. view.Columns["Sex"].OwnerBand = bandSex;
132. view.Columns["Birth"].OwnerBand = bandBirth;
133. view.Columns["Math"].OwnerBand = bandMath;
134. view.Columns["Chinese"].OwnerBand = bandChinese;
135. view.Columns["English"].OwnerBand = bandEnglish;
136. view.Columns["SubTotal"].OwnerBand = bandSubTotal;
137. view.Columns["Remark"].OwnerBand = bandRemark;
139. view.EndDataUpdate();//结束数据的编辑
140. view.EndUpdate(); //结束视图的编辑
143. }
146. // 计算小计
147. private float calcSubTotal(float math, float chinese, float english)
148. {
149. return math + chinese + english;
150. }
152. private void advBandedGridView1_CustomUnboundColumnData(object sender, CustomColumnDataEventArgs e)
153. {
154. ColumnView colView = sender as ColumnView;
155. if (e.Column.FieldName == "SubTotal" && e.IsGetData) e.Value = calcSubTotal(
156. Convert.ToSingle(colView.GetRowCellValue(e.RowHandle, colView.Columns["Math"])),
157. Convert.ToSingle(colView.GetRowCellValue(e.RowHandle, colView.Columns["Chinese"])),
158. Convert.ToSingle(colView.GetRowCellValue(e.RowHandle, colView.Columns["English"])));
159. }
162. #region 运行时绑定到实现Ilist接口的数据源
164. public class Record
165. {
166. int id;
167. DateTime birth;
168. string name, sex, remark;
169. float math, chinese, english;
170. public Record(int id, string name, string sex, DateTime birth, float math, float chinese, float english, string remark)
171. {
172. this.id = id;
173. this.name = name;
174. this.sex = sex;
175. this.birth = birth;
176. this.math = math;
177. this.chinese = chinese;
178. this.english = english;
179. this.remark = remark;
180. }
181. public int ID { get { return id; } }
182. public string Name
183. {
184. get { return name; }
185. set { name = value; }
186. }
187. public string Sex
188. {
189. get { return sex; }
190. set { sex = value; }
191. }
192. public DateTime Birth
193. {
194. get { return birth; }
195. set { birth = value; }
196. }
197. public float Math
198. {
199. get { return math; }
200. set { math = value; }
201. }
202. public float Chinese
203. {
204. get { return chinese; }
205. set { chinese = value; }
206. }
207. public float English
208. {
209. get { return english; }
210. set { english = value; }
211. }
212. public string Remark
213. {
214. get { return remark; }
215. set { remark = value; }
216. }
218. }
220. #endregion
222. }
223. }