本文转自：http://blog.csdn.net/gmjinrong/article/details/4516301
GridView实现支持多列排序,并显示升、降序图标上网找了很多资料参考才解决了问题
现分享如下:
1.新建StyleSheet.css,图片自己准备及路径需自行更改.
.alternatingrowstyle{
/* background-color:#f9f9f9;*/
background-color:White;
}
.sortascheaderstyle{
background:#F2F2F2 url(../Img/sort_asc.gif) no-repeat scroll right center;
padding-left:5px;
}
.sortdescheaderstyle{
background:#F2F2F2 url(../Img/sort_desc.gif) no-repeat scroll right center;
padding-left:5px;
}
.ItemStyle
{
}
.gridview
{
word-break:break-all;
word-wrap:break-word
}
headerstyle{
/* background-color:#e5e5e5;*/
background-color:#F2F2F2;
height:23px;
}
.headerstyle th {
border:1px solid #bbbbbb;
padding-left:5px;
text-align:left;
}
.headerstyle a {
color:black;
}
.pagerstyle{
color:#444444;
background-color:#e5e5e5;
font-size:x-small;
text-align:right;
}
2.前台
引用:
<head runat="server">
<link href="css/StyleSheet.css" rel="Stylesheet" type="text/css" />
</head>
Gridview部分:
<asp:GridView ID="givOrder" runat="server" CssClass="gridview"
AutoGenerateColumns="False" OnRowDataBound="givOrder_RowDataBound"
DataKeyNames="Rowid" AllowSorting="True"
onsorting="givOrder_Sorting" >
<AlternatingRowStyle CssClass="alternatingrowstyle" />
<HeaderStyle CssClass="headerstyle" />
<PagerStyle CssClass="pagerstyle" />
<Columns>
<asp:TemplateField ItemStyle-HorizontalAlign="Center" ItemStyle-Width="30px">
<ItemTemplate>
<%# Convert.ToInt32(DataBinder.Eval(Container, "DataItemIndex")) + 1 %>
</ItemTemplate>
<ItemStyle CssClass="ItemStyle"/>
</asp:TemplateField>
<asp:TemplateField ItemStyle-HorizontalAlign="Center"
HeaderText="订单号" SortExpression="OrderNo">
<ItemTemplate>
<asp:TextBox ID="txtOrderNo" runat="server" TextMode="MultiLine" CssClass="textBox" Rows="1" Width="60px" Text='<%# Bind("orderNo") %>' ></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField ItemStyle-HorizontalAlign="Center"
HeaderText="客户" SortExpression="CustomerName" >
<ItemTemplate>
<asp:TextBox ID="txtCustomerName" runat="server" TextMode="MultiLine" CssClass="textBox" Rows="1" Width="100px" Text='<%# Bind("CustomerName") %>' ></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
后台实现:
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
GridViewDataBind(); //自己实现的数据绑定DataSource
IDictionary<string, string> idic = new Dictionary<string, string>();
ViewState["sortIDic"] = idic;
}
}
protected void givOrder_Sorting(object sender, GridViewSortEventArgs e)
{
int cellIndex = -1;
foreach (DataControlField field in givOrder.Columns)
{
if (field.SortExpression == e.SortExpression)
{
cellIndex =givOrder.Columns.IndexOf(field);
if (ViewState["cellindex"] != null)
{
int oldCellindex=int.Parse(ViewState["cellindex"].ToString());
if (oldCellindex != cellIndex)
givOrder.Columns[oldCellindex].HeaderStyle.CssClass = "";
}
break;
}
}
string sortExpression = e.SortExpression;
IDictionary<string, string> idic = ViewState["sortIDic"] as IDictionary<string, string>;
if (!idic.ContainsKey(sortExpression))
{
idic.Add(e.SortExpression, e.SortDirection.ToString().Replace("Ascending", "ASC").Replace("Descending", "DESC"));
givOrder.Columns[cellIndex].HeaderStyle.CssClass = "sortascheaderstyle";
}
else
{
string strSortDirection = idic[e.SortExpression];
if (strSortDirection == "ASC")
{
idic[e.SortExpression] = "DESC";
givOrder.Columns[cellIndex].HeaderStyle.CssClass = "sortdescheaderstyle";
}
else if (strSortDirection == "DESC")
{
idic.Remove(e.SortExpression);
givOrder.Columns[cellIndex].HeaderStyle.CssClass = "";
}
}
ViewState["sortIDic"] = idic;
ViewState["cellindex"] = cellIndex;
SortGridView();
}
/// <summary>
/// 实现多行排序
/// </summary>
private void SortGridView()
{
StringBuilder sbSortExpression = new StringBuilder();
IDictionary<string, string> idic = ViewState["sortIDic"] as IDictionary<string, string>;
string[] strkeys = new string[idic.Count];
if (idic.Count > 0)
{
idic.Keys.CopyTo(strkeys, 0);
for (int i = 0; i <idic.Count; i++)
{
sbSortExpression.Append(strkeys[i]);
sbSortExpression.Append(" ");
sbSortExpression.Append(idic[strkeys[i]]);
if (i != idic.Count-1)
sbSortExpression.Append(", ");
}
}
clsborder l_order = new clsborder();
DataTable dt = l_order.SelectOrder();
DataView dv = dt.DefaultView;
dv.Sort = sbSortExpression.ToString();
givOrder.DataSource = dv;
givOrder.DataBind();
}