我试图将ListView或GridView作为ConverterParameter传递
但是,在转换器例程中,该参数作为一个类型字符串
但是,在转换器例程中,该参数作为一个类型字符串
以下是XAML列表视图和Converter类的一部分.
任何帮助非常感谢.谢谢！！！
<ListView Name="SeqDtStDataListView1" Grid.Row="1"
DataContext="{Binding Path=DisplayDT[0],Converter ={StaticResource
CNVToColumn},ConverterParameter=?????}"
VerticalContentAlignment="Stretch" VerticalAlignment="Stretch"
HorizontalAlignment="Stretch"
SelectionChanged="SEQDatalistview_SelectionChanged" Margin="5">
<ListView.View >
<GridView x:Name="SeqDtStDataGridView1"/>
</ListView.View>
</ListView>
转换器：
namespace MFTest.Converters
{
public class CNVToColumn : IValueConverter
{
public object Convert(object value,Type targetType,object parameter,System.Globalization.CultureInfo culture)
{
DataTable dt = (DataTable)value;
GridView GV = (GridView)parameter; <========= fail here ===========
if (dt != null && GV != null)
foreach (var colum in dt.Columns) // Binding the Columns
{
DataColumn dc = (DataColumn)colum;
GridViewColumn column = new GridViewColumn();
column.DisplayMemberBinding = new Binding(dc.ColumnName);
column.Header = dc.ColumnName;
GV.Columns.Add(column);
}
return null;
}
public object ConvertBack(object value,System.Globalization.CultureInfo culture)
{
throw new NotImplementedException();
}
}
}
解决方法
从.NET 4开始,您可以使用
x:Reference,它允许您避免只能在依赖属性上设置的ElementName绑定,同时实现几乎相同的事情.
由于循环依赖性限制,您无法引用其本身或其树中的祖先的控件.然而,您可以将绑定移动一级,并继承DataContext,例如.
<Border DataContext="{Binding Path=DisplayDT[0],Converter={StaticResource CNVToColumn},ConverterParameter={x:Reference SeqDtStDataListView1}}">
<ListView Name="SeqDtStDataListView1" Grid.Row="1">
