彩票走势图

如果您有一个TimeSpan属性从类中暴露出来，需要绑定C1DataGrid到对象集合，自动生成不能编辑的TimeSpan列。使用DataGridDateTimeColumn并不适合这种场景，因为DataGridDateTimeColumn列的类型和TimeSpan有所区别。

最简单的处理方法就是给DataGridDateTimeColumn设置CellEditingTemplate为C1TimeEditor。C1TimeEditor控件就是展示TimeSpan数据的特殊控件。如下的xmal代码定义需求的模板：

<c1:DataGridTemplateColumn Header="Time">
<c1:DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<TextBlock Text="{Binding TimeTaken}"/>
</DataTemplate>
</c1:DataGridTemplateColumn.CellTemplate>
<c1:DataGridTemplateColumn.CellEditingTemplate>
<DataTemplate>
<c1:C1TimeEditor Format="TimeSpan" Value="{Binding TimeTaken,Mode=TwoWay}"/>
</DataTemplate>
</c1:DataGridTemplateColumn.CellEditingTemplate>
</c1:DataGridTemplateColumn>

一种可以创建自定义列是从DataGridBoundColumn继承，这对于使用AutoGeneratingColumns事件在运行时添加列是非常有用的。代码参考：

public class DataGridTimeSpanColumn : DataGridBoundColumn
{
public DataGridTimeSpanColumn()
{
Initialize();
}

public DataGridTimeSpanColumn(PropertyInfo property)
: base(property)
{
Initialize();
}

protected void Initialize()
{
IsReadOnly = false;
}

public override object GetCellContentRecyclingKey(C1.Silverlight.DataGrid.DataGridRow row)
{
return "TimeEditor";
}

public override FrameworkElement CreateCellContent(C1.Silverlight.DataGrid.DataGridRow row)
{
var tb = new TextBlock();
return tb;
}

public override void BindCellContent(FrameworkElement cellContent, C1.Silverlight.DataGrid.DataGridRow row)
{
var tb = (TextBlock)cellContent;
var binding = CopyBinding(Binding);
tb.DataContext = row.DataItem;
tb.SetBinding(TextBlock.TextProperty, binding);
}

public override void UnbindCellContent(FrameworkElement cellContent, C1.Silverlight.DataGrid.DataGridRow row)
{
var timeeditor = (TextBlock)cellContent;
timeeditor.DataContext = null;
}

public override FrameworkElement GetCellEditingContent(C1.Silverlight.DataGrid.DataGridRow row)
{
var timeeditor = new C1TimeEditor();
timeeditor.Format = C1TimeEditorFormat.TimeSpan;
var binding = CopyBinding(Binding);
timeeditor.SetBinding(C1TimeEditor.ValueProperty, binding);
return timeeditor;
}
}

本文的参考示例：

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