asp.net-mvc - 如何在 ObjectDataSource 中应用排序

Question

我有与 ObjectDataSource1 绑定的 asp.net 网格视图，并且此 ObjectdataSource1 与 WCF 服务方法绑定。我是 asp.net 的新手。问题是我必须在其中应用按列排序。但无法做到这一点。使用 C# VS2010 启用排序复选框不可见

Answer 1

我使用这样的排序：

<asp:GridView ID="GridView1" DataSourceID="ObjectDataSource1" runat="server" AutoGenerateColumns="False"  AllowSorting="true" >
        <Columns>
            <asp:BoundField DataField="ID" HeaderText="ID" SortExpression="ID" />
            <asp:BoundField DataField="TelephoneNo" HeaderText=" Phone" SortExpression="TelephoneNo" />
            <asp:BoundField DataField="RequestTypeName" HeaderText="Type" SortExpression="RequestTypeName" />
            <asp:BoundField DataField="CenterName" HeaderText="Center" SortExpression="CenterName" />
        </Columns>
    </asp:GridView>
    <asp:ObjectDataSource ID="ObjectDataSource1" runat="server" TypeName="Data.RequestDB" SelectMethod="SearchRequests" SelectCountMethod="SearchRequestsCount" OnSelecting="ObjectDataSource1_Selecting" SortParameterName="sortParameter" >
        <SelectParameters>
            <asp:Parameter Name="id" Type="String" />
            <asp:Parameter Name="telephoneNo" Type="String" />
        </SelectParameters>
    </asp:ObjectDataSource>

和分贝方法：

public static List<Request> SearchRequests(string id, string telephoneNo, string sortParameter = null)
    {
        using (MainDataContext context = new MainDataContext())
        {
            var query = context.Requests
                .Where(t => (string.IsNullOrWhiteSpace(id) || t.ID.ToString().Contains(id)) &&
                            (string.IsNullOrWhiteSpace(telephoneNo) || t.TelephoneNo.ToString().Contains(telephoneNo))));

            if (string.IsNullOrEmpty(sortParameter))
                return query.OrderByDescending(t => t.ID).ThenByDescending(t => t.StatusName)
                    .ToList();

            return query.OrderBy(sortParameter)
                    .ToList();
        }
    }

希望对你有帮助