“DataContext数据上下文”绑定不上 ， Why？？？
“DataContext数据上下文”绑定不上 ， Why？？？

思路：

1、将“数据集类的实例对象”赋值给“Grid”的数据上下文，DataContext。

2、“Grid”里有一个“Lable”，一个“DataGrid”进行数据绑定。

问题：数据绑定不上。

1、后台代码：

  public partial class CustomReportTest : UserControl
  {
  public CustomReportTest()
  {
  InitializeComponent();

  EnergyList energylist = new EnergyList();
  LayoutRoot.DataContext = energylist;

  //dg_EnergyCustom.ItemsSource = energylist.energylist;
  }
  }

  public class EnergyList
{
private string _energytitle;


  public string EnergyTitle 
  {
  get {return _energytitle;}
  set { _energytitle = "指标报表"; }
  }
   
   
  public List<EnergyTarget> energylist = new List<EnergyTarget> {
  new EnergyTarget{EnergyYear="2010",EnergySum="7678.09",EnergyEveryOne="89.78",EnergyUnitArea="45.65"},
  new EnergyTarget{EnergyYear="2011",EnergySum="8978.48",EnergyEveryOne="67.75",EnergyUnitArea="43.63"}
  };
}

public class EnergyTarget
{
   

public string EnergyYear
{
  get;
  set;
}

public string EnergySum
{
  get;
  set;
}

public string EnergyUnitArea
{
  get;
  set;
}

public string EnergyEveryOne
{
  get;
  set;
}


}
2、XAML代码

   

  <Grid x:Name="LayoutRoot" Background="White">
  <Grid Margin="69,80,79,82">
  <Grid.RowDefinitions>
  <RowDefinition Height="30"/>
  <RowDefinition/>
  </Grid.RowDefinitions>

  <sdk:Label Background="#FFB7D4E0" Content="{Binding EnergyTitle}"/>
  <sdk:DataGrid Grid.Row="1" Name="dg_EnergyCustom" AutoGenerateColumns="False" ItemsSource="{Binding energylist}">
  <sdk:DataGrid.Columns>
  <sdk:DataGridTemplateColumn DisplayIndex="-1" Header="年份" IsReadOnly="True" Width="30*" >
  <sdk:DataGridTemplateColumn.CellTemplate >
  <DataTemplate>
  <TextBlock FontSize="13" HorizontalAlignment="Center" VerticalAlignment="Center" Text="{Binding EnergyYear}"></TextBlock>
  </DataTemplate>
  </sdk:DataGridTemplateColumn.CellTemplate>
  </sdk:DataGridTemplateColumn>
  <sdk:DataGridTemplateColumn Header="项目" Width="30*">
  <sdk:DataGridTemplateColumn.CellTemplate >
  <DataTemplate>
  <Grid ShowGridLines="True" HorizontalAlignment="Stretch&