#ListView绑定数据，选择ObjectDataSource作为数据源
ObjectDataSource中设置 TypeName="NorthwindBusiness"设置业务层数据获取类，然后设置数据查询方法SelectMethod="GetData"与 计算数据总行数的方法SelectCountMethod="GetCount"，设置允许分页EnablePaging="True" 以及传递给SelectMethod方法的参数每页显示数据行数MaximumRowsParameterName="pageSize" 和每页开始行索引号StartRowIndexParameterName="startIndex"，前端页代码如下：
<asp:ObjectDataSource ID="ObjectDataSource1" runat="server" TypeName="NorthwindBusiness" SelectMethod="GetData" EnablePaging="True" SelectCountMethod="GetCount" MaximumRowsParameterName="pageSize" StartRowIndexParameterName="startIndex"> </asp:ObjectDataSource>
其中业务层NorthwindBusiness类中GetData代码示例如下：
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Data; using System.Configuration; using System.Data.SqlClient; namespace BLL { public class NorthwindBusiness { DbHelperSQL helper = new DbHelperSQL(ConfigurationManager.ConnectionStrings["NorthWind"].ToString()); int DataCount = 0; public DataSet GetData(int pageSize,int startIndex,string sortE) { string sql_condition = " order by " + sortE; string strsql = "select * from Customers"; string countsql = "select count(1) from Customers"; DataCount = helper.GetCount(countsql); DataSet ds = new DataSet(); strsql += sql_condition; using(SqlConnection conn= new SqlConnection(ConfigurationManager.ConnectionStrings["NorthWind"].ToString())) { using(SqlDataAdapter da = new SqlDataAdapter(strsql,conn)) { da.Fill(ds, startIndex, pageSize, "Customers"); } } return ds; } public int GetCount(string sortE) { return DataCount; } } }
Tip：通过DataAdapter对象的Fill(dataSet,startIndex,pageSize,tableName)方法获取分页数据。
#排序实现过程细节
1、声明排序字段vsSortColumn及排序方向vsSortDirection两个字段，设置默认值。代码如下：
public string DefaultSortColumn = "CustomerID"; public string DefaultSortDirection = "ASC"; /// <summary> ///排序字段 /// </summary> public string vsSortColumn { set { this.ViewState["SortColumn"] = value; } get { return ((string)(this.ViewState["SortColumn"] ?? DefaultSortColumn)); } } /// <summary> ///排序方向 /// </summary> public string vsSortDirection { set { this.ViewState["SortDirection"] = value; } get { return ((string)(this.ViewState["SortDirection"] ?? DefaultSortDirection)); } }
2、添加ObjectDataSource的OnSelecting事件
//排序，其中strSortExpression传递给sortE protected void ObjectDataSource1_Selecting(object sender, ObjectDataSourceSelectingEventArgs e) { string strSortExpression = ""; strSortExpression = this.vsSortColumn + " " + this.vsSortDirection; e.InputParameters["sortE"] = strSortExpression; }
e.InputParameters通过索引器["sortE"]访 问<SelectParameter>中的<Parameter Name="sortE" Type="String">，并且SelectMethod与SelectCountMethod中设置调用的函数也必须带有< SelectParameter>中的参数。
3、添加ListView1_Sorting事件
protected void ListView1_Sorting(object sender, ListViewSortEventArgs e) { if (this.vsSortColumn == e.SortExpression) { if (this.vsSortDirection == "ASC") { this.vsSortDirection = "DESC"; } else { this.vsSortDirection = "ASC"; } } else { this.vsSortColumn = e.SortExpression; this.vsSortDirection = "ASC"; } e.Cancel = true; this.ListView1.DataBind(); }
HTML代码如下：
<asp:ListView ID="ListView1" runat="server" DataSourceID="ObjectDataSource1" onsorting="ListView1_Sorting" > <LayoutTemplate> <table> <thead> <tr> <th><asp:LinkButton ID="LinkButton1" CommandName="Sort" CommandArgument="CustomerID"
runat="server">CustomerID</asp:LinkButton></th> <th><asp:LinkButton ID="LinkButton2" CommandName="Sort" CommandArgument="CompanyName"
runat="server">CompanyName</asp:LinkButton></th> <th><asp:LinkButton ID="LinkButton3" CommandName="Sort" CommandArgument="ContactName"
runat="server">ContactName</asp:LinkButton></th> <th><asp:LinkButton ID="LinkButton4" CommandName="Sort" CommandArgument="ContactTitle"
runat="server">ContactTitle</asp:LinkButton></th> <th><asp:LinkButton ID="LinkButton5" CommandName="Sort" CommandArgument="Address"
runat="server">Address</asp:LinkButton></th> <th><asp:LinkButton ID="LinkButton6" CommandName="sort" CommandArgument="City"
runat="server">City</asp:LinkButton></th> </tr> </thead> <tbody> <asp:PlaceHolder runat="server" ID="itemPlaceholder"></asp:PlaceHolder> </tbody> </table> </LayoutTemplate> <ItemTemplate> <tr> <td><%# Eval("CustomerID") %></td> <td><%# Eval("CompanyName")%></td> <td><%# Eval("ContactName")%></td> <td><%# Eval("ContactTitle")%></td> <td><%# Eval("Address")%></td> <td><%# Eval("City")%></td> </tr> </ItemTemplate> </asp:ListView> <asp:DataPager ID="DataPager1" runat="server" PagedControlID="ListView1" PageSize="10"> <Fields> <asp:TemplatePagerField> <PagerTemplate> 共<%=DataCount%>条记录， 当前第<asp:Label runat="server" ID="CurrentPageLabel"
Text="<%# Container.TotalRowCount>0 ? (Container.StartRowIndex / Container.PageSize) + 1 : 0 %>"
/>/<asp:Label runat="server" ID="TotalPagesLabel"
Text="<%# Math.Ceiling ((double)Container.TotalRowCount / Container.PageSize) %>" />页， </PagerTemplate> </asp:TemplatePagerField> <asp:NextPreviousPagerField ShowFirstPageButton="True" ShowNextPageButton="False" /> <asp:NumericPagerField /> <asp:NextPreviousPagerField ShowFirstPageButton="False" ShowLastPageButton="True" ShowPreviousPageButton="False" /> </Fields> </asp:DataPager> </div> <asp:ObjectDataSource ID="ObjectDataSource1" runat="server" TypeName="ContractDAL.LAO" SelectMethod="GetData" EnablePaging="True" SelectCountMethod="GetCount" MaximumRowsParameterName="pageSize" StartRowIndexParameterName="startIndex" OnSelecting="ObjectDataSource1_Selecting" > <SelectParameters> <asp:Parameter Name="sortE" Type="String"/> </SelectParameters> </asp:ObjectDataSource>
Tip：ListViewSortEventArgs.SortExpression 属性中存的是<ListView>下的CommandArgument属性，每次点击带有CommandName="Sort"的标 签，CommandName中的值不分大小写，会将CommandArgument的值存在 ListViewSortEventArgs.SortExpression中。
ListView与ObjectDataSource实现CRUD及分页排序细节,布布扣,bubuko.com
ListView与ObjectDataSource实现CRUD及分页排序细节
原文：http://www.cnblogs.com/xuq23/p/3620225.html