MTP2.0_CSharp/Muchinfo.MTPClient/Fx4.0/Main/03.UI/Muchinfo.TASClient/Converters/TreeViewLineConverter .cs

using Muchinfo.MTPClient.Data;
using System;
using System.Windows.Controls;
using System.Windows.Data;

namespace Muchinfo.MTPClient.Converters
{
    public class TreeViewLineConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            try
            {
                var item = (TreeViewItem)value;
                ItemsControl ic = ItemsControl.ItemsControlFromItemContainer(item);
                return ic.ItemContainerGenerator.IndexFromContainer(item) == ic.Items.Count - 1;
            }
            catch
            {
                return null;
            }
        }

        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            throw new Exception("The method or operation is not implemented.");
        }
    }

    public class NewTreeViewLineConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            try
            {
                var item = value as TreeViewItem;
                if (item == null || item.Header == null) return false;
                var sysMenuItem = item.Header as SysMenuItem;
                if (sysMenuItem == null) return false;
                ////判断是否该项是否无父也无子
                if (!item.HasItems && sysMenuItem.ParentItem == null) return true;
                return false;
            }
            catch
            {
                return false;
            }
        }

        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            return false;
        }
    }

}