Gridview 多重表头 (二)

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=""/>

View Code

  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='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='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         }

View Code

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         }

View Code

 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);

View Code

 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                    ...

View Code

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(&#39;LinkButton1&#39;,&#39;&#39;)' style='text-align:center;color:white' >Request</a></th></tr><tr>";

View Code

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         }

View Code

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。。。。

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原文地址：https://www.cnblogs.com/coderinprague/p/4281671.html