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一、DataGrid分组
在Silverlight的表格中可能需要对某一些数据进行分组以方便客户查看，我们使用PagedCollectionView集合作为数据源，然后通过设置其GroupDescriptions属性值，添加需要分组的实体集合属性，注意：如果需要两层分组则添加两个属性即可。
Xaml代码：
<sdk:DataGrid HorizontalAlignment="Left" AutoGenerateColumns="False" Name="ShowCityList"
VerticalAlignment="Top" Height="400" >
<sdk:DataGrid.Columns>
<sdk:DataGridTextColumn Header="省会" Binding="{Binding AddrName}" Width="108"/>
<sdk:DataGridTextColumn Header="城市" Binding="{Binding CityName}" IsReadOnly="True" Width="108"/>
<sdk:DataGridTextColumn Header="电话区号" Binding="{Binding TelNum}" IsReadOnly="True" Width="108"/>
</sdk:DataGrid.Columns>
</sdk:DataGrid>
Xaml.cs代码如下：
PagedCollectionView view = new PagedCollectionView(CityInfo.GetInfo());
//此处根据AddrName属性分组
view.GroupDescriptions.Add(new PropertyGroupDescription("AddrName"));
//如果需要多重分组，则取消以下注释
//view.GroupDescriptions.Add(new PropertyGroupDescription("CityName"));
this.ShowCityList.ItemsSource = view;
实体数据源函数如下：
public static List<CityInfo> GetInfo()
{
var list = new List<CityInfo>();
list.Add(new CityInfo() { AddrName = "北京", CityName = "北京市", TelNum = "010" });
list.Add(new CityInfo() { AddrName = "上海", CityName = "上海市", TelNum = "020" });
list.Add(new CityInfo() { AddrName = "广东", CityName = "广州市", TelNum = "021" });
list.Add(new CityInfo() { AddrName = "广东", CityName = "深圳市", TelNum = "0210" });
list.Add(new CityInfo() { AddrName = "四川", CityName = "成都市", TelNum = "028" });
list.Add(new CityInfo() { AddrName = "四川", CityName = "内江市", TelNum = "0832" });
list.Add(new CityInfo() { AddrName = "四川", CityName = "自贡市", TelNum = "0831" });
return list;
}
效果如下：
二、模拟合并单元格
在本实例中我们通过对数据源进行构造，然后在DataGrid控件上设置DataGridTemplateColumn的模板方式模拟合并单元格。
Xaml代码：
<sdk:DataGrid HorizontalAlignment="Left" AutoGenerateColumns="False" Name="ShowCity"
VerticalAlignment="Top" Height="400" Margin="400 0 0 0" >
<sdk:DataGrid.Columns>
<sdk:DataGridTextColumn Header="省会" Binding="{Binding AddrName}" IsReadOnly="True" Width="108"/>
<sdk:DataGridTemplateColumn Header="城市" Width="108">
<sdk:DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<ItemsControl ItemsSource="{Binding CityNames}"/>
</DataTemplate>
</sdk:DataGridTemplateColumn.CellTemplate>
</sdk:DataGridTemplateColumn>
<sdk:DataGridTemplateColumn Header="电话区号" Width="108">
<sdk:DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<ItemsControl ItemsSource="{Binding TelNums}" />
</DataTemplate>
</sdk:DataGridTemplateColumn.CellTemplate>
</sdk:DataGridTemplateColumn>
</sdk:DataGrid.Columns>
</sdk:DataGrid>
Xaml.cs代码：
this.ShowCity.ItemsSource = CityInfo.GetInfoList();
实体数据源函数如下：
public static List<CityInfo> GetInfoList()
{
var list = new List<CityInfo>();
list.Add(new CityInfo() { AddrName = "北京", CityNames = new List<string>() { "北京市" },
TelNums = new List<string>() { "010" } });
list.Add(new CityInfo() { AddrName = "上海", CityNames = new List<string>() { "上海市" },
TelNums = new List<string>() { "020" } });
list.Add(new CityInfo() { AddrName = "广东", CityNames = new List<string>() { "广州市", "深圳市" },
TelNums = new List<string>() { "021","0210" } });
list.Add(new CityInfo() { AddrName = "四川", CityNames = new List<string>() { "成都市", "内江市","自贡市" },
TelNums = new List<string>() { "028","0832","0831" } });
return list;
}
效果如下：
三、实体类如下：
/// <summary>
/// 城市信息的实体类
/// </summary>
public class CityInfo
{
private string _AddrName;
private string _CityName;
private string _TelNum;
public string AddrName
{
get { return _AddrName; }
set { _AddrName = value; }
}
public string CityName
{
get { return _CityName; }
set { _CityName = value; }
}
public string TelNum
{
get { return _TelNum; }
set { _TelNum = value; }
}
private List<string> _CityNames;
public List<string> CityNames
{
get { return _CityNames; }
set { _CityNames = value; }
}
private List<string> _TelNums;
public List<string> TelNums
{
get { return _TelNums; }
set { _TelNums = value; }
}
}
本实例需要引用System.Windows.Data.dll程序集，如需源码请点击 SLDataGrid.rar 下载
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