多重表头之排序
这是个有点忧桑的故事。。。Cynthia告诉我，研究一个问题，我们不可能有超过一天的时间。。。
结果好好几天过去鸟~~还没有完成。。。
由于不再使用Gridview自带的表头行，于是无法绑定gridview自带排序方法。只能根据点击列名做不同处理。
我的思路是酱滴，将点击的列名存在一个hiddenfield里，排序时候根据hiddenfield里存储的值作为升/降序的依据。
好丢人的说，第一次的时候存在了label里，每次回传都被label默认值覆盖，后来才发现，不是所有控件都叫Hidden field...
ASPX
1 <script language="javascript" type="text/javascript">
2 function test(o)
3 {
4 document.getElementById("Label1").innerText = o;
5 document.getElementById("LinkButton1").click();
6 }
7
8 </script>
9 ....
10
11 <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" AllowSorting="true"
12 onrowcreated="GridView1_RowCreated">
13 <Columns>
14 <asp:BoundField DataField="StoreId" HeaderText="Store Id" SortExpression="StoreId" />
15 <asp:BoundField DataField="Requeseter" HeaderText="Requester" SortExpression="Requeseter" />
16 <asp:BoundField DataField="EmployeeId" HeaderText="EmployeeId" SortExpression="EmployeeId"/>
17 <asp:BoundField DataField="StoreId" HeaderText="StoreId2" SortExpression="StoreId" />
18 </Columns>
19 </asp:GridView>
20
21 <asp:LinkButton ID="LinkButton1" runat="server" onclick="LinkButton1_Click"
22 ClientIDMode="Static">LinkButton</asp:LinkButton>
23 <asp:HiddenField ID="Label1" runat="server" Value=""/>
CS
1 protected void Page_Load(object sender, EventArgs e)
2 {
3 if (!IsPostBack)
4 {
5 List<Mix> list = new List<Mix>();
6 int i = 1000;
7 list.AddRange(new List<Mix> { new Mix { StoreId = 1, Requeseter = "A", EmployeeId = i + 3 }, new Mix { StoreId = 3, Requeseter = "A", EmployeeId = i + 2 }, new Mix { StoreId = 2, Requeseter = "A", EmployeeId = i + 4 }, new Mix { StoreId = 4, Requeseter = "B", EmployeeId = i + 3 } });
8 ViewState["lst"] = list;
9 GridView1.DataSource = list;
10 GridView1.DataBind();
11 ViewState["i"] = 1;
12 }
13 this.LinkButton1.Style.Add("display", "none");
14 }
15
16 protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)
17 {
18 switch (e.Row.RowType)
19 {
20 case DataControlRowType.Header:
21
22 TableCellCollection tcHeader = e.Row.Cells;
23 tcHeader.Clear();
24 //Associate
25 tcHeader.Add(new TableHeaderCell());
26 tcHeader[0].BackColor = System.Drawing.Color.FromArgb(99, 74, 141);
27 tcHeader[0].ForeColor = System.Drawing.Color.White;
28 tcHeader[0].BorderColor = System.Drawing.Color.LightGray;
29 tcHeader[0].HorizontalAlign = HorizontalAlign.Center;
30 tcHeader[0].Attributes.Add("rowspan", "2");
31 tcHeader[0].Text = "<br><a id=‘Associate‘ href=\"#\" onclick=‘test(this.id)‘>Associate</a>";
32 // ClientScriptManager.RegisterForEventValidation();
33 //SecurityLevel
34 tcHeader.Add(new TableHeaderCell());
35 tcHeader[1].BackColor = System.Drawing.Color.FromArgb(99, 74, 141);
36 tcHeader[1].ForeColor = System.Drawing.Color.White;
37 tcHeader[1].BorderColor = System.Drawing.Color.LightGray;
38 tcHeader[1].HorizontalAlign = HorizontalAlign.Center;
39 tcHeader[1].Attributes.Add("colspan", "3");
40 tcHeader[1].Text = "<p>SecurityLevel</p></th></tr><tr>";
41
42 //2Line: Default Level
43 tcHeader.Add(new TableHeaderCell());
44 tcHeader[2].BackColor = System.Drawing.Color.FromArgb(99, 74, 141);
45 tcHeader[2].ForeColor = System.Drawing.Color.White;
46 tcHeader[2].BorderColor = System.Drawing.Color.LightGray;
47 tcHeader[2].HorizontalAlign = HorizontalAlign.Center;
48 tcHeader[2].Text = "<a id=‘jobcodedefault‘ href=\"#\" onclick=‘test(this.id)‘>Job Code Default</a>";
49 //tcHeader[2].Text = "<p>Job Code Default</p>";
50
51 //2Line: Current Level
52 tcHeader.Add(new TableHeaderCell());
53 tcHeader[3].BackColor = System.Drawing.Color.FromArgb(99, 74, 141);
54 tcHeader[3].ForeColor = System.Drawing.Color.White;
55 tcHeader[3].BorderColor = System.Drawing.Color.LightGray;
56 tcHeader[3].HorizontalAlign = HorizontalAlign.Center;
57 //<a id=‘jobcodedefault‘ href=\"#\" onclick=‘test(this.id)‘>Job Code Default</a>
58 tcHeader[3].Text = "<a id=‘current‘ href=\"#\" onclick=‘test(this.id)‘>Current</a>";
59
60 //tcHeader[3].Text = "<label style=‘width:99%; text-align:center; vertical-align:middle; color:White; font-weight:bold ‘>Current</label>";
61 tcHeader.Add(new TableHeaderCell());
62
63 //2Line: Requested Level
64 tcHeader[4].BackColor = System.Drawing.Color.FromArgb(99, 74, 141);
65 tcHeader[4].ForeColor = System.Drawing.Color.White;
66 tcHeader[4].BorderColor = System.Drawing.Color.LightGray;
67 tcHeader[4].HorizontalAlign = HorizontalAlign.Center;
68 tcHeader[4].Style.Add("BorderColor", "White");
69 // tcHeader[4].Text = "<label style=‘width:99%; text-align:center; vertical-align:middle; color:White; font-weight:bold ‘>Requested</label></tr>";
70 tcHeader[4].Text = "<a id=‘requester‘ href=\"#\" onclick=‘test(this.id)‘>Requester</a></tr>";
71
72 break;
73 }
74
75
76 }
77
78
79
80 protected void LinkButton1_Click(object sender, EventArgs e)
81 {
82 List<Mix> list = new List<Mix>();
83 List<Mix> listSorted = new List<Mix>();
84
85 list = (List<Mix>)ViewState["lst"];
86
87 switch (Label1.Value)
88 {
89 case "Associate":
90 {
91 int j = (int)ViewState["i"];
92
93 if ((j++) % 2 == 0)
94 {
95 var historydesc = from c in list orderby c.StoreId descending select c;
96 foreach (var x in historydesc)
97 {
98 listSorted.Add(x);
99 }
100 }
101 else
102 {
103 var historyasc = from c in list orderby c.StoreId ascending select c;
104 foreach (var x in historyasc)
105 {
106 listSorted.Add(x);
107 }
108 }
109 ViewState["i"] = j;
110
111 break;
112 }
113 case "jobcodedefault":
114 {
115 int j = (int)ViewState["i"];
116
117 if ((j++) % 2 == 0)
118 {
119 var historydesc= from c in list orderby c.Requeseter descending select c;
120 foreach (var x in historydesc)
121 {
122 listSorted.Add(x);
123 }
124 }
125 else
126 {
127 var historyasc = from c in list orderby c.Requeseter ascending select c;
128 foreach (var x in historyasc)
129 {
130 listSorted.Add(x);
131 }
132 }
133 ViewState["i"] = j;
134
135 break;
136 }
137 case "current":
138 {
139 int j = (int)ViewState["i"];
140
141 if ((j++) % 2 == 0)
142 {
143 var historydesc = from c in list orderby c.EmployeeId descending select c;
144 foreach (var x in historydesc)
145 {
146 listSorted.Add(x);
147 }
148 }
149 else
150 {
151 var historyasc = from c in list orderby c.EmployeeId ascending select c;
152 foreach (var x in historyasc)
153 {
154 listSorted.Add(x);
155 }
156 }
157 ViewState["i"] = j;
158
159 break;
160
161 }
162 case "requester":
163 {
164 int j = (int)ViewState["i"];
165
166 if ((j++) % 2 == 0)
167 {
168 var historydesc = from c in list orderby c.StoreId descending select c;
169 foreach (var x in historydesc)
170 {
171 listSorted.Add(x);
172 }
173 }
174 else
175 {
176 var historyasc = from c in list orderby c.StoreId ascending select c;
177 foreach (var x in historyasc)
178 {
179 listSorted.Add(x);
180 }
181 }
182 ViewState["i"] = j;
183
184 break;
185
186 }
187 }
188
189
190 this.GridView1.DataSource = listSorted;
191 this.GridView1.DataBind();
192 }
就算是简单的实现了吧，直到Cynthia告诉我可以酱。
lkbAssociate.Click += new EventHandler(grdHistorySort);
以Associate列为栗子。
1 //flag for asc and desc
2 private bool AssociateAsc
3 {
4 get { return (ViewState["AssociateAsc"] == null) ? true : (bool)ViewState["AssociateAsc"]; }
5 set { ViewState["AssociateAsc"] = value; }
6 }
1 tcHeader.Add(new TableHeaderCell());
2 tcHeader[1].BackColor = System.Drawing.Color.FromArgb(99, 74, 141);
3 tcHeader[1].ForeColor = System.Drawing.Color.White;
4 tcHeader[1].BorderColor = System.Drawing.Color.LightGray;
5 tcHeader[1].HorizontalAlign = HorizontalAlign.Center;
6 tcHeader[1].Attributes.Add("rowspan", "2");
7 LinkButton lkbAssociate = new LinkButton();
8 lkbAssociate.Style.Add("text-align", "center");
9 lkbAssociate.Style.Add("color", "white");
10 lkbAssociate.ID = "lkbAssociate";
11 lkbAssociate.Text = "Associate (EID)";
12 lkbAssociate.Click += new EventHandler(grdHistorySort);
13 tcHeader[1].Controls.Add(lkbAssociate);
1 protected void grdHistorySort(object sender, EventArgs e)
2 {
3 List<PMSecRequestHistoryInfo> originalList = new List<PMSecRequestHistoryInfo>();
4 List<PMSecRequestHistoryInfo> sortedList = new List<PMSecRequestHistoryInfo>();
5
6 originalList = (List<PMSecRequestHistoryInfo>)ViewState["InitHistoryTabList"];
7 LinkButton linkButonClicked = sender as LinkButton;
8
9 switch (linkButonClicked.ID)
10 {
11
12 case "lkbAssociate":
13 {
14 if (ViewState["AssociateAsc"] == null || (bool)ViewState["AssociateAsc"])
15 {
16 var sorted = from c in originalList orderby c.DisplayName ascending select c;
17 foreach (var info in sorted)
18 {
19 sortedList.Add(info);
20 }
21
22 ViewState["AssociateAsc"] = false;
23 }
24 else
25 {
26 var sorted = from c in originalList orderby c.DisplayName descending select c;
27 foreach (var info in sorted)
28 {
29 sortedList.Add(info);
30 }
31
32 ViewState["AssociateAsc"] = true;
33 }
34
35 }
36 break;
37 ...
酱婶儿的，会不会简明扼要的多。。。Cynthiao(≧v≦)o~~好棒
唯一遗憾的是我不晓得如何为分隔的列添加控件同时添加格式。
这样两列，不能如法炮制。
第一次时候用了上次的写法，写了一个<a onclik></a>,发现页面要刷瞎我的双眼。。。
不闪的，才是健康的~
于是，拽了一个LinkButton,点了事件里的onclick想看看是个什么样子。ViewSource 发现是辣样一个东西，于是模仿了一个。
1 tcHeader[12].Text = "<a id=‘LinkButton1‘ href=‘javascript:__doPostBack('LinkButton1','')‘ style=‘text-align:center;color:white‘ >Request</a></th></tr><tr>";
排序类似
1 protected void LinkButton1_Click(object sender, EventArgs e)
2 {
3 List<PMSecRequestHistoryInfo> originalList = new List<PMSecRequestHistoryInfo>();
4 List<PMSecRequestHistoryInfo> sortedList = new List<PMSecRequestHistoryInfo>();
5
6 originalList = (List<PMSecRequestHistoryInfo>)ViewState["InitHistoryTabList"];
7
8 if (ViewState["RequestedLevelAsc"] == null || (bool)ViewState["RequestedLevelAsc"] == true)
9 {
10 var sorted = from c in originalList orderby c.RequestedSecurityLevel ascending select c;
11 foreach (var info in sorted)
12 {
13 sortedList.Add(info);
14 }
15 ViewState["RequestedLevelAsc"] = false;
16
17 }
18 else
19 {
20 var sorted = from c in originalList orderby c.RequestedSecurityLevel descending select c;
21 foreach (var info in sorted)
22 {
23 sortedList.Add(info);
24 }
25
26 ViewState["RequestedLevelAsc"] = true;
27 }
28
29
30 grdHistoryRequest.DataSource = sortedList;
31 grdHistoryRequest.DataBind();
32 ViewState["InitHistoryTabList"] = sortedList;
33
34
35 }
真正困惑我的是，如果我把页面上的LinkButton删掉，排序会 米！有！效！
百思不得姐，姐百思不得。。。。
时间： 2024-08-04 07:36:26