使用Silverlight Toolkit的数据分页控件---DataPager

2021-09-23 07:21:17

在Silverlight Toolkit 3.0中提供了强大灵活的数据分页控件：DataPager。并且其还有多种显示样式 (DisplayMode) 供使用。终于可以不用再自己费神巴力去实现分页功能了，下面是其演示效果：

使用Silverlight Toolkit的数据分页控件---DataPager

接着介绍一下其使用方法。

　　首先，我们要新建一个Silverlight应用，并添加对下面DLL的引用：

System.Windows.Data（其提供了PagedCollectionView类用于实现分页绑定）

System.Windows.Controls.Data（分页器控件DataPager所在DLL）

　　
XAML文件头部名空间声明：

xmlns:data="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Data"

　　
然后我们要在当前XAML中放置一个DataGrid用于显示列表数据，声明如下：

<data:DataGrid x:Name="MyDataGrid" Grid.Column="0" Grid.Row="0" ItemsSource="{Binding}" />

　　
为了演示不同显示样式(DisplayMode)的效果，下面根据其样式分别加以声明：

<data:DataPager x:Name ="FirstLastNumeric" Grid.Row="2" DisplayMode="FirstLastNumeric" Margin="0,0,0,4"
                HorizontalAlignment="Left" Source="{Binding}" NumericButtonCount="3" AutoEllipsis="True"/>

<data:DataPager x:Name ="FirstLastPreviousNext" Grid.Column="0" Grid.Row="3" DisplayMode="FirstLastPreviousNext"
                Margin="0,0,0,4" HorizontalAlignment="Left" Source="{Binding}" NumericButtonCount="3" AutoEllipsis="True"/>

<data:DataPager x:Name ="FirstLastPreviousNextNumeric" Grid.Column="0" Grid.Row="4" DisplayMode="FirstLastPreviousNextNumeric"
                Margin="0,0,0,4" HorizontalAlignment="Left" Source="{Binding}" NumericButtonCount="4" AutoEllipsis="True"/>

<data:DataPager x:Name ="Numeric" Grid.Column="0" Grid.Row="5" DisplayMode="Numeric" HorizontalAlignment="Left"
                Margin="0,0,0,4"  Source="{Binding}" NumericButtonCount="6" AutoEllipsis="False"/>

<data:DataPager x:Name ="PreviousNext" Grid.Column="0" Grid.Row="6" DisplayMode="PreviousNext" Margin="0,0,0,4"
                HorizontalAlignment="Left" Source="{Binding}" NumericButtonCount="3" AutoEllipsis="False" />

<data:DataPager x:Name ="PreviousNextNumeric" Grid.Column="0" Grid.Row="7" DisplayMode="PreviousNextNumeric" Margin="0,0,0,4"
                HorizontalAlignment="Left" Source="{Binding}" NumericButtonCount="4" AutoEllipsis="False" />

好了，为了便于演示，我“硬编码”了一个数据对象集合如下：

public List<EmployeeInfo> GetEmployeeList()
{
     List<EmployeeInfo> employeeList = new List<EmployeeInfo>();
     employeeList.Add(new EmployeeInfo { EmployeeID = 1, EmployeeName = "大林", Salary = 1000, City = "合肥" });
     employeeList.Add(new EmployeeInfo { EmployeeID = 2, EmployeeName = "小林", Salary = 1000, City = "合肥" });
     employeeList.Add(new EmployeeInfo { EmployeeID = 3, EmployeeName = "张三", Salary = 1000, City = "合肥" });
     employeeList.Add(new EmployeeInfo { EmployeeID = 4, EmployeeName = "李四", Salary = 1500, City = "天津" });
     employeeList.Add(new EmployeeInfo { EmployeeID = 5, EmployeeName = "王五", Salary = 2000, City = "上海" });
     employeeList.Add(new EmployeeInfo { EmployeeID = 6, EmployeeName = "赵六", Salary = -800, City = "北京" });
     employeeList.Add(new EmployeeInfo { EmployeeID = 7, EmployeeName = "尤七", Salary = 2100, City = "武汉" });
     employeeList.Add(new EmployeeInfo { EmployeeID = 8, EmployeeName = "马八", Salary = 2300, City = "海口" });
     employeeList.Add(new EmployeeInfo { EmployeeID = 9, EmployeeName = "许九", Salary = 2300, City = "海口" });
     employeeList.Add(new EmployeeInfo { EmployeeID = 10, EmployeeName = "代十", Salary = 2300, City = "海口" });
     return employeeList;
}

public class EmployeeInfo
{
     public int EmployeeID { set; get; }
     public string EmployeeName { set; get; }
     public int Salary { set; get; }
     public int[] Cost { get; set; }
     public string City { set; get; }
}

接下来就是如何实现分页，以及相关控件的数据绑定了，代码位于MyDataPager.xaml.cs（详见注释）：

using System.Windows.Data;

public MyDataPager()
{
    InitializeComponent();
    PagedCollectionView pcv = new PagedCollectionView(GetEmployeeList());
    pcv.PageSize = 3;//一页显示三条记录

    //列表控件数据源绑定
    MyDataGrid.DataContext = pcv;
    MyListBox.DataContext = pcv;

    //分页控件数据源绑定
    FirstLastNumeric.DataContext = pcv;
    FirstLastPreviousNext.DataContext = pcv;
    FirstLastPreviousNextNumeric.DataContext = pcv;
    Numeric.DataContext = pcv;
    PreviousNext.DataContext = pcv;
    PreviousNextNumeric.DataContext = pcv;
}

是不是很好用，呵呵。当然该控件还提供了NumericButtonCount属性用于控制页码的数量，这在上面的XAML控件声明时已使用，大家可以修改测试一下效果。

　　好的，今天的内容就先到这里了。

本文转自 daizhenjun 51CTO博客，原文链接：http://blog.51cto.com/daizhj/188781，如需转载请自行联系原作者

码农公寓

相关文章