使用方法：
Step 1：aspx页面中引用DateRange.js，代码清单如下：
1: function ApplyFilter(dde, fieldname, dateFrom, dateTo, container) {
2: var d1 = dateFrom.GetText();
3: var d2 = dateTo.GetText();
4: if (d1 == "" || d2 == "")
5: return;
6: var newValue = d1 + " 至 " + d2;
7: var oldValue = dde.lastSuccessText;
8: dde.SetText(newValue);
9: if (newValue != oldValue)
10: container.AutoFilterByColumn(fieldname, dde.GetText());
11: }
12:
13: function RemoveFilter(dde, fieldname, container) {
14: dde.SetText('');
15: container.AutoFilterByColumn(fieldname, '');
16: }
17:
18: function OnDropDown(s, dateFrom, dateTo) {
19: var str = s.GetText();
20: if (str == "") {
21: dateFrom.SetDate(new Date(2011, 1, 1));
22: dateTo.SetDate(new Date());
23: return;
24: }
25: var d = str.split(" 至 ");
26: dateFrom.SetText(d[0]);
27: dateTo.SetText(d[1]);
28: }
Step 2：App_Code中添加DateRange.cs，代码清单如下：
1: using System;
2: using System.Collections.Generic;
3: using System.Web;
4: using System.Web.UI;
5: using System.Web.UI.WebControls;
6: using DevExpress.Data.Filtering;
7: using DevExpress.Web.ASPxEditors;
8: using DevExpress.Web.ASPxGridView;
9:
10: public class DateTemplate : ITemplate
11: {
12: // client IDs of two ASPxDateEdit controls
13: public String cIdFrom;
14: public String cIdTo;
15: public String FieldName;
16: public ASPxGridView Container;
17:
18: public DateTemplate(ASPxGridView container, string fieldname)
19: : base()
20: {
21: Container = container;
22: FieldName = fieldname;
23: }
24:
25: public void InstantiateIn(Control container)
26: {
27: Table table = new Table();
28: container.Controls.Add(table);
29: TableRow row = new TableRow();
30: table.Rows.Add(row);
31:
32: TableCell cell = new TableCell();
33: row.Cells.Add(cell);
34: ASPxLabel lbl = new ASPxLabel();
35: lbl.ID = "lblFrom";
36: lbl.Text = "从：";
37: cell.Controls.Add(lbl);
38:
39: cell = new TableCell();
40: row.Cells.Add(cell);
41: ASPxDateEdit dateFrom = new ASPxDateEdit();
42: dateFrom.ID = "dateFrom";
43: dateFrom.EnableClientSideAPI = true;
44: cell.Controls.Add(dateFrom);
45:
46: row = new TableRow();
47:
48: table.Rows.Add(row);
49:
50: cell = new TableCell();
51: row.Cells.Add(cell);
52: lbl = new ASPxLabel();
53: lbl.ID = "lblTo";
54: lbl.Text = "到：";
55: cell.Controls.Add(lbl);
56:
57: cell = new TableCell();
58: row.Cells.Add(cell);
59: ASPxDateEdit dateTo = new ASPxDateEdit();
60: dateTo.ID = "dateTo";
61: dateTo.EnableClientSideAPI = true;
62: cell.Controls.Add(dateTo);
63:
64: cIdFrom = dateFrom.ClientID;
65: cIdTo = dateTo.ClientID;
66:
67: row = new TableRow();
68:
69: table.Rows.Add(row);
70:
71: cell = new TableCell();
72: cell.ColumnSpan = 2;
73: row.Cells.Add(cell);
74: ASPxHyperLink lnk = new ASPxHyperLink();
75: lnk.ID = "lnkApply";
76: lnk.Text = "应用";
77: lnk.NavigateUrl = "#";
78: lnk.ClientSideEvents.Click =
79: String.Format("function (s, e) {{ {0}.HideDropDown(); ApplyFilter({0}, '{1}', {2}, {3}, {4}); }}",
80: container.NamingContainer.NamingContainer.ClientID, FieldName, cIdFrom, cIdTo, Container.ClientID);
81: cell.Controls.Add(lnk);
82:
83: Literal space = new Literal();
84: space.Text = "nbsp; ";
85: cell.Controls.Add(space);
86:
87: ASPxHyperLink lnkCancel = new ASPxHyperLink();
88: lnkCancel.ID = "lnkCancel";
89: lnkCancel.Text = "清除";
90: lnkCancel.NavigateUrl = "#";
91: lnkCancel.ClientSideEvents.Click =
92: String.Format("function (s, e) {{ {0}.HideDropDown(); RemoveFilter({0}, '{1}', {2}); }}",
93: container.NamingContainer.NamingContainer.ClientID, FieldName, Container.ClientID);
94: cell.Controls.Add(lnkCancel);
95: }
96: }
97:
98:
99: public class DateRangeHandler
100: {
101: DateTemplate dateTemplate = null;
102: List<string> FieldNames = null;
103:
104: public DateRangeHandler(ASPxGridView sender, string fieldname)
105: {
106: FieldNames = new List<string>();
107: FieldNames.Add(fieldname);
108: sender.AutoFilterCellEditorCreate += grid_AutoFilterCellEditorCreate;
109: sender.AutoFilterCellEditorInitialize += grid_AutoFilterCellEditorInitialize;
110: sender.ProcessColumnAutoFilter += grid_ProcessColumnAutoFilter;
111: }
112:
113: public DateRangeHandler(ASPxGridView sender, List<string> fieldnames)
114: {
115: FieldNames = fieldnames;
116: sender.AutoFilterCellEditorCreate += grid_AutoFilterCellEditorCreate;
117: sender.AutoFilterCellEditorInitialize += grid_AutoFilterCellEditorInitialize;
118: sender.ProcessColumnAutoFilter += grid_ProcessColumnAutoFilter;
119: }
120:
121: private void grid_AutoFilterCellEditorCreate(object sender, ASPxGridViewEditorCreateEventArgs e)
122: {
123: ASPxGridView grid = sender as ASPxGridView;
124: if (FieldNames.Contains(e.Column.FieldName))
125: {
126: DropDownEditProperties dde = new DropDownEditProperties();
127: dde.EnableClientSideAPI = true;
128:
129: dateTemplate = new DateTemplate(sender as ASPxGridView, e.Column.FieldName);
130:
131: dde.DropDownWindowTemplate = dateTemplate;
132: dde.Style.BorderLeft.BorderStyle = BorderStyle.Solid;
133: dde.Style.BorderRight.BorderStyle = BorderStyle.Solid;
134: dde.Style.BorderTop.BorderStyle = BorderStyle.Solid;
135: dde.Style.BorderBottom.BorderStyle = BorderStyle.Solid;
136: e.EditorProperties = dde;
137: }
138: }
139:
140: private void grid_AutoFilterCellEditorInitialize(object sender, ASPxGridViewEditorEventArgs e)
141: {
142: ASPxGridView grid = sender as ASPxGridView;
143: if (FieldNames.Contains(e.Column.FieldName))
144: {
145: ASPxDropDownEdit dde = e.Editor as ASPxDropDownEdit;
146: //dde.ClientSideEvents.CloseUp = String.Format("function (s, e) {{ ApplyFilter(s,'{0}', {1}, {2}, {3}); }}",
147: //FieldName, dateTemplate.cIdFrom, dateTemplate.cIdTo, (sender as ASPxGridView).ClientID);
148: dde.ClientSideEvents.DropDown = String.Format("function (s, e) {{ OnDropDown(s, {0}, {1}, {2}); }}",
149: dateTemplate.cIdFrom, dateTemplate.cIdTo, (sender as ASPxGridView).ClientID);
150: dde.ReadOnly = true;
151: }
152: }
153:
154: private void grid_ProcessColumnAutoFilter(object sender, ASPxGridViewAutoFilterEventArgs e)
155: {
156: if (e.Value == "")
157: return;
158: if (FieldNames.Contains(e.Column.FieldName))
159: {
160: if (e.Kind == GridViewAutoFilterEventKind.CreateCriteria)
161: {
162: HttpContext.Current.Session["CollectionDateFilter_" + e.Column.FieldName] = e.Value;
163: String[] dates = e.Value.Split(new string[] { " 至 " }, StringSplitOptions.RemoveEmptyEntries);
164: DateTime dateFrom = Convert.ToDateTime(dates[0] + " 00:00:00"),
165: dateTo = Convert.ToDateTime(dates[1] + " 23:59:59");
166: e.Criteria = (new OperandProperty(e.Column.FieldName) >= dateFrom)
167: (new OperandProperty(e.Column.FieldName) <= dateTo);
168: }
169: else
170: {
171: if (HttpContext.Current.Session["CollectionDateFilter_" + e.Column.FieldName] != null)
172: e.Value = HttpContext.Current.Session["CollectionDateFilter_" + e.Column.FieldName].ToString();
173: }
174: }
175: else
176: {
177: if (e.Kind == GridViewAutoFilterEventKind.CreateCriteria)
178: {
179: long dte = DateTime.Now.Ticks;
180: e.Criteria = e.Criteria | (new OperandProperty(e.Column.FieldName) == dte);
181: }
182: }
183: }
184: }
Step 3：页面.cs文件中添加如下代码：
单列方式：
1:
2: protected void Page_Load(object sender, EventArgs e)
3: {
4: DateRangeHandler h = new DateRangeHandler(grid, "创建时间");
5: }
多列方式：
1:
2: protected void Page_Load(object sender, EventArgs e)
3: {
4: List<string> fieldnames = new List<string>();
5: fieldnames.Add("创建时间");
6: fieldnames.Add("订货时间");
7: fieldnames.Add("出货时间");
8: fieldnames.Add("审核时间");
9: DateRangeHandler h = new DateRangeHandler(grid, fieldnames);
10: }
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