重新封装了一个 GridView，支持如下功能：
1. CheckBox选择记录，指定CheckBox的位置
2. 支持List，DataSet,Datatable 排序
3. 排序时在Header部分出现图标
4. 封装了PageIndexChanged 和DataBind，不用每页都写。
5. 支持SQL分页和ApsNetPager等分页控件。
注： 没有加入很多的功能，因为本身需要的就是一个轻量级的GridView，产生近可能少的代码。
另：选择高亮功能是用JQuery实现的，因此使用时需要JQuery的运行库。
代码1 ： 辅助对象，实现Sort排序。（其实这部分功能可以用LINQ来做，会简单很多，当这个类已经用了很久了，懒得改了）
1 using System;
2 using System.Collections;
3 using System.Collections.Generic;
4 using System.Reflection;
5
6 namespace xxWare.xxControls
7 {
8 public class Reverser<T> : IComparer<T>
9 {
10 private Type _type = null;
11 private ReverserInfo info;
12
13 /// <summary>
14 /// 构造函数
15 /// </summary>
16 /// <param name="type">进行比较的类类型</param>
17 /// <param name="name">进行比较对象的属性名称</param>
18 /// <param name="direction">比较方向(升序/降序)</param>
19 public Reverser(Type _type, string _name, string _direction)
20 {
21 this._type = _type;
22 this.info.name = _name;
23 this.info.direction = _direction.ToLower();
24 }
25
26 /// <summary>
27 /// 构造函数
28 /// </summary>
29 /// <param name="className">进行比较的类名称</param>
30 /// <param name="name">进行比较对象的属性名称</param>
31 /// <param name="direction">比较方向(升序/降序)</param>
32 public Reverser(string _className, string _name, string _direction)
33 {
34 try
35 {
36 this._type = Type.GetType(_className, true);
37 this.info.name = _name;
38 this.info.direction = _direction.ToLower();
39 }
40 catch (Exception e)
41 {
42 throw new Exception(e.Message);
43 }
44
45 }
46
47 /// <summary>
48 /// 构造函数
49 /// </summary>
50 /// <param name="t">进行比较的类型的实例</param>
51 /// <param name="name">进行比较对象的属性名称</param>
52 /// <param name="direction">比较方向(升序/降序)</param>
53 public Reverser(T _t, string _name, string _direction)
54 {
55 this._type = _t.GetType();
56 this.info.name = _name;
57 this.info.direction = _direction;
58 }
59
60 int IComparer<T>.Compare(T t1, T t2)
61 {
62 object x = this._type.InvokeMember(this.info.name, BindingFlags.Public | BindingFlags.Instance | BindingFlags.GetProperty, null, t1, null);
63 object y = this._type.InvokeMember(this.info.name, BindingFlags.Public | BindingFlags.Instance | BindingFlags.GetProperty, null, t2, null);
64
65 if (this.info.direction != "asc")
66 Swap(ref x, ref y);
67 return (new CaseInsensitiveComparer()).Compare(x, y);
68 }
69
70 void Swap(ref object x, ref object y)
71 {
72 object tmp = x;
73 x = y;
74 y = tmp;
75 }
76 }
77 public struct ReverserInfo
78 {
79 public enum Target
80 {
81 Customer = 0,
82 From,
83 Field,
84 Server
85 }
86
87 public string name;
88 public string direction; // asc , desc ;
89 public Target target;
90 }
91 }
代码2： Template类，用于生成CheckBox列
1 using System;
2 using System.Web;
3 using System.Web.UI;
4 using System.Web.UI.WebControls;
5
6 namespace xxWare.xxControls
7 {
8 #region Selector Template
9 public class xxGridColumnTemplate : ITemplate
10 {
11 public void InstantiateIn(Control container)
12 {
13 CheckBox cb = new CheckBox();
14 cb.ID = "FarGV_ColumnSelector";
15 cb.ClientIDMode = ClientIDMode.AutoID;
16 cb.CssClass = "far_rowsselector";
17 container.Controls.AddAt(0, cb);
18 }
19 }
20
21 public class xxGridHeaderTemplate : ITemplate
22 {
23 public void InstantiateIn(Control container)
24 {
25 System.Web.UI.HtmlControls.HtmlInputCheckBox selectAll = new System.Web.UI.HtmlControls.HtmlInputCheckBox();
26 selectAll.ID = "FarGV_ColumnSelectorAll";
27 selectAll.ClientIDMode = ClientIDMode.Static;
28 selectAll.Attributes["onclick"] = "FarGridView_ColumnSelectorAll();";
29 container.Controls.Add(selectAll);
30 }
31 }
32
33 #endregion
34
35 }
主代码： 加了一个属性 AutoSort,当使用SQL分页是，设置为 False即可
002 |
using System.Collections.Generic;
|
003 |
using System.ComponentModel;
|
007 |
using System.Web.UI.WebControls;
|
008 |
using System.Reflection;
|
010 |
namespace xxWare.xxControls
|
012 |
[ToolboxData("<{0}:xxGridView runat=server></{0}:xxGridView>")]
|
013 |
public class xxGridView : System.Web.UI.WebControls.GridView
|
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[Browsable(true) , Category("Sort Image"), DefaultValue("images/arrow_up.gif") , Description("Asc Image")]
|
018 |
public string Asc_Image { get; set; }
|
019 |
[Browsable(true), Category("Sort Image"), DefaultValue("images/arrow_down.gif"), Description("Desc Image")]
|
020 |
public string Desc_Image { get; set; }
|
021 |
[Browsable(true), Category("Sort Image"), DefaultValue("images/arrow_updn.gif"), Description("Sortable Image")]
|
022 |
public string Sort_Image { get; set; }
|
026 |
public string CurrentSortExpression
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028 |
get { return Convert.ToString(ViewState["CurrentSortExpression"]); }
|
029 |
set { ViewState["CurrentSortExpression"] = value.Trim(); }
|
032 |
public string CurrentSortDirection
|
034 |
get { return Convert.ToString(ViewState["CurrentSortDirection"]); }
|
037 |
if (string.IsNullOrEmpty(value))
|
039 |
ViewState["CurrentSortDirection"] = "desc";
|
043 |
if (value.ToLower() != "asc" && value.ToLower() != "desc")
|
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ViewState["CurrentSortDirection"] = "desc";
|
049 |
ViewState["CurrentSortDirection"] = value.ToString().ToLower();
|
056 |
[Category("MultiSelect") , DefaultValue("True")]
|
057 |
public bool AllowMultiSelect
|
059 |
get { return bool.Parse(ViewState["AllowMultiSelect"].ToString()); }
|
060 |
set { ViewState["AllowMultiSelect"] = value.ToString(); }
|
062 |
[Category("MultiSelect"), DefaultValue(0)]
|
063 |
public int AllowMultiSelectColumn
|
065 |
get { return Int32.Parse(ViewState["AllowMultiSelectColumn"].ToString()); }
|
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set { ViewState["AllowMultiSelectColumn"] = value.ToString(); }
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public List<GridViewRow> MultiSelectedItem
|
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if (!AllowMultiSelect) return null;
|
083 |
List<GridViewRow> selectedRows = new List<GridViewRow>();
|
084 |
foreach (GridViewRow row in this.Rows)
|
086 |
CheckBox cb = (CheckBox)row.Cells[AllowMultiSelectColumn].Controls[0];
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selectedRows.Add(row);
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098 |
private object sourcedata;
|
099 |
public object DataSetSource
|
103 |
if (sourcedata != null)
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110 |
sourcedata = value as object;
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private int _recordCount = 0;
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117 |
public int RecordCount
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119 |
get { return _recordCount; }
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123 |
[Browsable(true), Category("Misc"), DefaultValue("True"), Description("Auto Pager")]
|
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public bool AutoSort { get; set; }
|
128 |
private ClientScriptManager csManager;
|
130 |
public xxGridView() : base()
|
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Asc_Image = @"images/arrow_up.gif";
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Desc_Image = @"images/arrow_down.gif";
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Sort_Image = @"images/arrow_updn.gif";
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Init += new EventHandler(On_Init);
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146 |
Sorting += new GridViewSortEventHandler(On_Sorting);
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147 |
RowCreated += new GridViewRowEventHandler(On_RowCreated);
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150 |
#region Event Handlers
|
151 |
public event EventHandler GridBindEvent;
|
152 |
public virtual void OnGridBind<T>()
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if (sourcedata!=null)
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156 |
if (CurrentSortExpression==string.Empty)
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this.DataSource = sourcedata;
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if (sourcedata is DataTable)
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166 |
DataView dv = (sourcedata as DataTable).DefaultView;
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if (!string.IsNullOrEmpty(CurrentSortExpression) && AutoSort)
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168 |
dv.Sort = CurrentSortExpression + " " + CurrentSortDirection;
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this.DataSource = dv;
|
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_recordCount = dv.Count;
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if (this.PageIndex>1)
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else if (sourcedata is DataSet)
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188 |
DataView dv = (sourcedata as DataSet).Tables[0].DefaultView;
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189 |
if (!string.IsNullOrEmpty(CurrentSortExpression) && AutoSort)
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dv.Sort = CurrentSortExpression + " " + CurrentSortDirection;
|
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this.DataSource = dv;
|
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_recordCount = dv.Count;
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if (this.PageIndex > 1)
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207 |
else if (sourcedata is List<T>)
|
209 |
if (!string.IsNullOrEmpty(CurrentSortExpression) && AutoSort)
|
211 |
Reverser<T> reverser = new Reverser<T>(typeof(T), CurrentSortExpression, CurrentSortDirection);
|
212 |
(sourcedata as List<T>).Sort(reverser);
|
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this.DataSource = sourcedata;
|
216 |
_recordCount = (sourcedata as List<T>).Count;
|
223 |
if (this.PageIndex > 1)
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234 |
public void On_Init(object sender, EventArgs e)
|
237 |
if (ViewState["AllowMultiSelect"]==null || ViewState["AllowMultiSelect"].ToString().Trim()=="")
|
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ViewState["AllowMultiSelect"] = "True";
|
239 |
if (ViewState["AllowMultiSelectColumn"] == null || ViewState["AllowMultiSelectColumn"].ToString().Trim() == "")
|
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ViewState["AllowMultiSelectColumn"] = "0";
|
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csManager = this.Page.ClientScript;
|
243 |
if (AllowMultiSelect)
|
250 |
if (CurrentSortDirection == null || CurrentSortDirection.Trim() == "")
|
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CurrentSortDirection = "desc";
|
252 |
if (CurrentSortExpression == null) CurrentSortDirection = "";
|
255 |
public void On_Sorting(object sender , GridViewSortEventArgs e)
|
257 |
CurrentSortExpression = e.SortExpression;
|
258 |
if (CurrentSortDirection == "desc")
|
259 |
CurrentSortDirection = "asc";
|
261 |
CurrentSortDirection = "desc";
|
263 |
GridBindEvent(this , EventArgs.Empty);
|
266 |
public void On_RowCreated(object sender , GridViewRowEventArgs e)
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268 |
string currentSortImage = "";
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269 |
if (e.Row.RowType==DataControlRowType.Header)
|
271 |
foreach (DataControlField field in this.Columns)
|
273 |
if (!String.IsNullOrEmpty(field.SortExpression))
|
275 |
if (IsSortedByThisField(field.SortExpression))
|
277 |
currentSortImage = (CurrentSortDirection == "asc") ? Asc_Image : Desc_Image;
|
281 |
currentSortImage = Sort_Image;
|
283 |
AddSortImage(e.Row, this.Columns.IndexOf(field), currentSortImage);
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291 |
#region Override Methods
|
292 |
protected override void OnPageIndexChanging(GridViewPageEventArgs e)
|
295 |
this.PageIndex = e.NewPageIndex;
|
296 |
GridBindEvent(this, EventArgs.Empty);
|
300 |
#region private helper function
|
302 |
private void AddSortImage(GridViewRow _row, int _colIndex ,string _currImage)
|
304 |
if (-1 == _colIndex) return;
|
306 |
Image sortImage = new Image();
|
307 |
sortImage.ImageUrl = _currImage;
|
308 |
_row.Cells[_colIndex].Controls.AddAt(1, sortImage);
|
311 |
private bool IsSortedByThisField(String strSortExpression)
|
313 |
return CurrentSortExpression.ToLower() == strSortExpression.Trim().ToLower();
|
317 |
private void AddSelectColumn()
|
319 |
TemplateField tc = new TemplateField();
|
320 |
tc.ItemTemplate = new xxGridColumnTemplate();
|
321 |
tc.HeaderTemplate = new xxGridHeaderTemplate();
|
323 |
this.Columns.Insert(AllowMultiSelectColumn, tc);
|
325 |
private void RegisterJS()
|
337 |
csManager.RegisterClientScriptResource(this.GetType(), "xxWare.xxControls.xxGridViewJS.js");
|
源码下载（带Demo）
重新封装了一个 GridView，支持如下功能：
1. CheckBox选择记录，指定CheckBox的位置
2. 支持List，DataSet,Datatable 排序
3. 排序时在Header部分出现图标
4. 封装了PageIndexChanged 和DataBind，不用每页都写。
1 using System;
2 using System.Collections.Generic;
3 using System.ComponentModel;
4 using System.Data;
5 using System.Web;
6 using System.Web.UI;
7 using System.Web.UI.WebControls;
8 using System.Reflection;
9
10 namespace xxWare.xxControls
11 {
12 [ToolboxData("<{0}:xxGridView runat=server></{0}:xxGridView>")]
13 public class xxGridView : System.Web.UI.WebControls.GridView
14 {
15 #region Properties
16 // sort image url : full url = Sort_Image_Url + Asc_Image_Name
17 [Browsable(true) , Category("Sort Image"), DefaultValue("images/arrow_up.gif") , Description("Asc Image")]
18 public string Asc_Image { get; set; }
19 [Browsable(true), Category("Sort Image"), DefaultValue("images/arrow_down.gif"), Description("Desc Image")]
20 public string Desc_Image { get; set; }
21 [Browsable(true), Category("Sort Image"), DefaultValue("images/arrow_updn.gif"), Description("Sortable Image")]
22 public string Sort_Image { get; set; }
23
24 //Property : SortExpression
25 [Browsable(false)]
26 public string CurrentSortExpression
27 {
28 get { return Convert.ToString(ViewState["CurrentSortExpression"]); }
29 set { ViewState["CurrentSortExpression"] = value.Trim(); }
30 }
31 [Browsable(false)]
32 public string CurrentSortDirection
33 {
34 get { return Convert.ToString(ViewState["CurrentSortDirection"]); }
35 set
36 {
37 if (string.IsNullOrEmpty(value))
38 {
39 ViewState["CurrentSortDirection"] = "desc";
40 }
41 else
42 {
43 if (value.ToLower() != "asc" && value.ToLower() != "desc")
44 {
45 ViewState["CurrentSortDirection"] = "desc";
46 }
47 else
48 {
49 ViewState["CurrentSortDirection"] = value.ToString().ToLower();
50 }
51 }
52 }
53 }
54
55 //Property : Multi Show CheckBox
56 [Category("MultiSelect") , DefaultValue("True")]
57 public bool AllowMultiSelect
58 {
59 get { return bool.Parse(ViewState["AllowMultiSelect"].ToString()); }
60 set { ViewState["AllowMultiSelect"] = value.ToString(); }
61 }
62 [Category("MultiSelect"), DefaultValue(0)]
63 public int AllowMultiSelectColumn
64 {
65 get { return Int32.Parse(ViewState["AllowMultiSelectColumn"].ToString()); }
66 set { ViewState["AllowMultiSelectColumn"] = value.ToString(); }
67 }
68 /*
69 public string RowSelectFilter
70 {
71 get { return (string)ViewState["RowSelectFilter"]; }
72 set { ViewState["RowSelectFilter"] = value.ToString(); }
73 }
74 * */
75 //Property : Get Selected Items
76 [Browsable(false)]
77 public List<GridViewRow> MultiSelectedItem
78 {
79 get
80 {
81 if (!AllowMultiSelect) return null;
82
83 List<GridViewRow> selectedRows = new List<GridViewRow>();
84 foreach (GridViewRow row in this.Rows)
85 {
86 CheckBox cb = (CheckBox)row.Cells[AllowMultiSelectColumn].Controls[0];
87 if (cb.Checked)
88 {
89 selectedRows.Add(row);
90 }
91 }
92
93 return selectedRows;
94 }
95 }
96
97 //Define DataSource
98 private object sourcedata;
99 public object DataSetSource
100 {
101 get
102 {
103 if (sourcedata != null)
104 return sourcedata;
105 else
106 return null;
107 }
108 set
109 {
110 sourcedata = value as object;
111 }
112 }
113
114 #endregion
115
116 private ClientScriptManager csManager;
117
118 public xxGridView() : base()
119 {
120 AllowPaging = false;
121 AllowSorting = true;
122 //GridLines = GridLines.Horizontal;
123 //BorderWidth = (Unit)0;
124
125 // Sort Images Default
126 Asc_Image = @"images/arrow_up.gif";
127 Desc_Image = @"images/arrow_down.gif";
128 Sort_Image = @"images/arrow_updn.gif";
129
130 //set event handlers
131 Init += new EventHandler(On_Init);
132 Sorting += new GridViewSortEventHandler(On_Sorting);
133 RowCreated += new GridViewRowEventHandler(On_RowCreated);
134 }
135
136 #region Event Handlers
137 public event EventHandler GridBindEvent;
138 public virtual void OnGridBind<T>()
139 {
140 if (sourcedata!=null)
141 {
142 if (CurrentSortExpression==string.Empty)
143 {
144 this.DataSource = sourcedata;
145 this.DataBind();
146 return;
147 }
148
149 //Datasource Type
150 if (sourcedata is DataTable)
151 {
152 DataView dv = (sourcedata as DataTable).DefaultView;
153 if (!string.IsNullOrEmpty(CurrentSortExpression))
154 dv.Sort = CurrentSortExpression + " " + CurrentSortDirection;
155
156 this.DataSource = dv;
157 this.DataBind();
158 }
159 else if (sourcedata is DataSet)
160 {
161 DataView dv = (sourcedata as DataSet).Tables[0].DefaultView;
162 if (!string.IsNullOrEmpty(CurrentSortExpression))
163 dv.Sort = CurrentSortExpression + " " + CurrentSortDirection;
164
165 this.DataSource = dv;
166 this.DataBind();
167 }
168 else if (sourcedata is List<T>)
169 {
170 if (!string.IsNullOrEmpty(CurrentSortExpression))
171 {
172 Reverser<T> reverser = new Reverser<T>(typeof(T), CurrentSortExpression, CurrentSortDirection);
173 (sourcedata as List<T>).Sort(reverser);
174 }
175
176 this.DataSource = sourcedata;
177 this.DataBind();
178 }
179 }
180
181 }
182
183 public void On_Init(object sender, EventArgs e)
184 {
185 // processing multi-select
186 if (ViewState["AllowMultiSelect"]==null || ViewState["AllowMultiSelect"].ToString().Trim()=="")
187 ViewState["AllowMultiSelect"] = "True";
188 if (ViewState["AllowMultiSelectColumn"] == null || ViewState["AllowMultiSelectColumn"].ToString().Trim() == "")
189 ViewState["AllowMultiSelectColumn"] = "0";
190
191 csManager = this.Page.ClientScript;
192 if (AllowMultiSelect)
193 {
194 AddSelectColumn();
195 RegisterJS();
196 }
197
198 // processing sorting...
199 if (CurrentSortDirection == null || CurrentSortDirection.Trim() == "")
200 CurrentSortDirection = "desc";
201 if (CurrentSortExpression == null) CurrentSortDirection = "";
202 }
203
204 public void On_Sorting(object sender , GridViewSortEventArgs e)
205 {
206 CurrentSortExpression = e.SortExpression;
207 if (CurrentSortDirection == "desc")
208 CurrentSortDirection = "asc";
209 else
210 CurrentSortDirection = "desc";
211
212 GridBindEvent(this , EventArgs.Empty);
213 }
214
215 public void On_RowCreated(object sender , GridViewRowEventArgs e)
216 {
217 string currentSortImage = "";
218 if (e.Row.RowType==DataControlRowType.Header)
219 {
220 foreach (DataControlField field in this.Columns)
221 {
222 if (!String.IsNullOrEmpty(field.SortExpression))
223 {
224 if (IsSortedByThisField(field.SortExpression))
225 {
226 currentSortImage = (CurrentSortDirection == "asc") ? Asc_Image : Desc_Image;
227 }
228 else
229 {
230 currentSortImage = Sort_Image;
231 }
232 AddSortImage(e.Row, this.Columns.IndexOf(field), currentSortImage);
233 }
234 }
235 }
236 }
237
238 #endregion
239
240 #region Override Methods
241 protected override void OnPageIndexChanging(GridViewPageEventArgs e)
242 {
243 //base.OnPageIndexChanging(e);
244 this.PageIndex = e.NewPageIndex;
245 GridBindEvent(this, EventArgs.Empty);
246 }
247 #endregion
248
249 #region private helper function
250 // For Sort
251 private void AddSortImage(GridViewRow _row, int _colIndex ,string _currImage)
252 {
253 if (-1 == _colIndex) return;
254
255 Image sortImage = new Image();
256 sortImage.ImageUrl = _currImage;
257 _row.Cells[_colIndex].Controls.AddAt(1, sortImage);
258 }
259
260 private bool IsSortedByThisField(String strSortExpression)
261 {
262 return CurrentSortExpression.ToLower() == strSortExpression.Trim().ToLower();
263 }
264
265 // for Multi Select
266 private void AddSelectColumn()
267 {
268 TemplateField tc = new TemplateField();
269 tc.ItemTemplate = new FarGridColumnTemplate();
270 tc.HeaderTemplate = new FarGridHeaderTemplate();
271
272 this.Columns.Insert(AllowMultiSelectColumn, tc);
273 }
274 private void RegisterJS()
275 {
276 /*
277 System.Resources.ResourceManager rm = new System.Resources.ResourceManager("xxGridView", Assembly.GetExecutingAssembly());
278 string _script = rm.GetString("js_selectall");
279
280 if (!csManager.IsClientScriptBlockRegistered(this.GetType() , "js_selectall"))
281 {
282 csManager.RegisterClientScriptBlock(this.GetType(), "js_selectall", _script);
283 }
284 */
285
286 csManager.RegisterClientScriptResource(this.GetType(), "xxWare.xxControls.xxGridViewJS.js");
287 }
288
289 #endregion
290
291 }
292 }
还有一些如： MultiSelectFilter 等有时间再完善
