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
<script language="javascript" type="text/javascript">
function test(o)
{
document.getElementById("Label1").innerText = o;
document.getElementById("LinkButton1").click();
} </script>
.... <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" AllowSorting="true"
onrowcreated="GridView1_RowCreated">
<Columns>
<asp:BoundField DataField="StoreId" HeaderText="Store Id" SortExpression="StoreId" />
<asp:BoundField DataField="Requeseter" HeaderText="Requester" SortExpression="Requeseter" />
<asp:BoundField DataField="EmployeeId" HeaderText="EmployeeId" SortExpression="EmployeeId"/>
<asp:BoundField DataField="StoreId" HeaderText="StoreId2" SortExpression="StoreId" />
</Columns>
</asp:GridView> <asp:LinkButton ID="LinkButton1" runat="server" onclick="LinkButton1_Click"
ClientIDMode="Static">LinkButton</asp:LinkButton>
<asp:HiddenField ID="Label1" runat="server" Value=""/>
CS
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
List<Mix> list = new List<Mix>();
int i = ;
list.AddRange(new List<Mix> { new Mix { StoreId = , Requeseter = "A", EmployeeId = i + }, new Mix { StoreId = , Requeseter = "A", EmployeeId = i + }, new Mix { StoreId = , Requeseter = "A", EmployeeId = i + }, new Mix { StoreId = , Requeseter = "B", EmployeeId = i + } });
ViewState["lst"] = list;
GridView1.DataSource = list;
GridView1.DataBind();
ViewState["i"] = ;
}
this.LinkButton1.Style.Add("display", "none");
} protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)
{
switch (e.Row.RowType)
{
case DataControlRowType.Header: TableCellCollection tcHeader = e.Row.Cells;
tcHeader.Clear();
//Associate
tcHeader.Add(new TableHeaderCell());
tcHeader[].BackColor = System.Drawing.Color.FromArgb(, , );
tcHeader[].ForeColor = System.Drawing.Color.White;
tcHeader[].BorderColor = System.Drawing.Color.LightGray;
tcHeader[].HorizontalAlign = HorizontalAlign.Center;
tcHeader[].Attributes.Add("rowspan", "");
tcHeader[].Text = "<br><a id='Associate' href=\"#\" onclick='test(this.id)'>Associate</a>";
// ClientScriptManager.RegisterForEventValidation();
//SecurityLevel
tcHeader.Add(new TableHeaderCell());
tcHeader[].BackColor = System.Drawing.Color.FromArgb(, , );
tcHeader[].ForeColor = System.Drawing.Color.White;
tcHeader[].BorderColor = System.Drawing.Color.LightGray;
tcHeader[].HorizontalAlign = HorizontalAlign.Center;
tcHeader[].Attributes.Add("colspan", "");
tcHeader[].Text = "<p>SecurityLevel</p></th></tr><tr>"; //2Line: Default Level
tcHeader.Add(new TableHeaderCell());
tcHeader[].BackColor = System.Drawing.Color.FromArgb(, , );
tcHeader[].ForeColor = System.Drawing.Color.White;
tcHeader[].BorderColor = System.Drawing.Color.LightGray;
tcHeader[].HorizontalAlign = HorizontalAlign.Center;
tcHeader[].Text = "<a id='jobcodedefault' href=\"#\" onclick='test(this.id)'>Job Code Default</a>";
//tcHeader[2].Text = "<p>Job Code Default</p>"; //2Line: Current Level
tcHeader.Add(new TableHeaderCell());
tcHeader[].BackColor = System.Drawing.Color.FromArgb(, , );
tcHeader[].ForeColor = System.Drawing.Color.White;
tcHeader[].BorderColor = System.Drawing.Color.LightGray;
tcHeader[].HorizontalAlign = HorizontalAlign.Center;
//<a id='jobcodedefault' href=\"#\" onclick='test(this.id)'>Job Code Default</a>
tcHeader[].Text = "<a id='current' href=\"#\" onclick='test(this.id)'>Current</a>"; //tcHeader[3].Text = "<label style='width:99%; text-align:center; vertical-align:middle; color:White; font-weight:bold '>Current</label>";
tcHeader.Add(new TableHeaderCell()); //2Line: Requested Level
tcHeader[].BackColor = System.Drawing.Color.FromArgb(, , );
tcHeader[].ForeColor = System.Drawing.Color.White;
tcHeader[].BorderColor = System.Drawing.Color.LightGray;
tcHeader[].HorizontalAlign = HorizontalAlign.Center;
tcHeader[].Style.Add("BorderColor", "White");
// tcHeader[4].Text = "<label style='width:99%; text-align:center; vertical-align:middle; color:White; font-weight:bold '>Requested</label></tr>";
tcHeader[].Text = "<a id='requester' href=\"#\" onclick='test(this.id)'>Requester</a></tr>"; break;
} } protected void LinkButton1_Click(object sender, EventArgs e)
{
List<Mix> list = new List<Mix>();
List<Mix> listSorted = new List<Mix>(); list = (List<Mix>)ViewState["lst"]; switch (Label1.Value)
{
case "Associate":
{
int j = (int)ViewState["i"]; if ((j++) % == )
{
var historydesc = from c in list orderby c.StoreId descending select c;
foreach (var x in historydesc)
{
listSorted.Add(x);
}
}
else
{
var historyasc = from c in list orderby c.StoreId ascending select c;
foreach (var x in historyasc)
{
listSorted.Add(x);
}
}
ViewState["i"] = j; break;
}
case "jobcodedefault":
{
int j = (int)ViewState["i"]; if ((j++) % == )
{
var historydesc= from c in list orderby c.Requeseter descending select c;
foreach (var x in historydesc)
{
listSorted.Add(x);
}
}
else
{
var historyasc = from c in list orderby c.Requeseter ascending select c;
foreach (var x in historyasc)
{
listSorted.Add(x);
}
}
ViewState["i"] = j; break;
}
case "current":
{
int j = (int)ViewState["i"]; if ((j++) % == )
{
var historydesc = from c in list orderby c.EmployeeId descending select c;
foreach (var x in historydesc)
{
listSorted.Add(x);
}
}
else
{
var historyasc = from c in list orderby c.EmployeeId ascending select c;
foreach (var x in historyasc)
{
listSorted.Add(x);
}
}
ViewState["i"] = j; break; }
case "requester":
{
int j = (int)ViewState["i"]; if ((j++) % == )
{
var historydesc = from c in list orderby c.StoreId descending select c;
foreach (var x in historydesc)
{
listSorted.Add(x);
}
}
else
{
var historyasc = from c in list orderby c.StoreId ascending select c;
foreach (var x in historyasc)
{
listSorted.Add(x);
}
}
ViewState["i"] = j; break; }
} this.GridView1.DataSource = listSorted;
this.GridView1.DataBind();
}
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。
//flag for asc and desc
private bool AssociateAsc
{
get { return (ViewState["AssociateAsc"] == null) ? true : (bool)ViewState["AssociateAsc"]; }
set { ViewState["AssociateAsc"] = value; }
}
tcHeader.Add(new TableHeaderCell());
tcHeader[].BackColor = System.Drawing.Color.FromArgb(, , );
tcHeader[].ForeColor = System.Drawing.Color.White;
tcHeader[].BorderColor = System.Drawing.Color.LightGray;
tcHeader[].HorizontalAlign = HorizontalAlign.Center;
tcHeader[].Attributes.Add("rowspan", "");
LinkButton lkbAssociate = new LinkButton();
lkbAssociate.Style.Add("text-align", "center");
lkbAssociate.Style.Add("color", "white");
lkbAssociate.ID = "lkbAssociate";
lkbAssociate.Text = "Associate (EID)";
lkbAssociate.Click += new EventHandler(grdHistorySort);
tcHeader[].Controls.Add(lkbAssociate);
protected void grdHistorySort(object sender, EventArgs e)
{
List<PMSecRequestHistoryInfo> originalList = new List<PMSecRequestHistoryInfo>();
List<PMSecRequestHistoryInfo> sortedList = new List<PMSecRequestHistoryInfo>(); originalList = (List<PMSecRequestHistoryInfo>)ViewState["InitHistoryTabList"];
LinkButton linkButonClicked = sender as LinkButton; switch (linkButonClicked.ID)
{ case "lkbAssociate":
{
if (ViewState["AssociateAsc"] == null || (bool)ViewState["AssociateAsc"])
{
var sorted = from c in originalList orderby c.DisplayName ascending select c;
foreach (var info in sorted)
{
sortedList.Add(info);
} ViewState["AssociateAsc"] = false;
}
else
{
var sorted = from c in originalList orderby c.DisplayName descending select c;
foreach (var info in sorted)
{
sortedList.Add(info);
} ViewState["AssociateAsc"] = true;
} }
break;
...
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。
tcHeader[].Text = "<a id='LinkButton1' href='javascript:__doPostBack('LinkButton1','')' style='text-align:center;color:white' >Request</a></th></tr><tr>";
排序类似
protected void LinkButton1_Click(object sender, EventArgs e)
{
List<PMSecRequestHistoryInfo> originalList = new List<PMSecRequestHistoryInfo>();
List<PMSecRequestHistoryInfo> sortedList = new List<PMSecRequestHistoryInfo>(); originalList = (List<PMSecRequestHistoryInfo>)ViewState["InitHistoryTabList"]; if (ViewState["RequestedLevelAsc"] == null || (bool)ViewState["RequestedLevelAsc"] == true)
{
var sorted = from c in originalList orderby c.RequestedSecurityLevel ascending select c;
foreach (var info in sorted)
{
sortedList.Add(info);
}
ViewState["RequestedLevelAsc"] = false; }
else
{
var sorted = from c in originalList orderby c.RequestedSecurityLevel descending select c;
foreach (var info in sorted)
{
sortedList.Add(info);
} ViewState["RequestedLevelAsc"] = true;
} grdHistoryRequest.DataSource = sortedList;
grdHistoryRequest.DataBind();
ViewState["InitHistoryTabList"] = sortedList; }
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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