WPF Silverlight Visibility 属性的绑定

Silverlight 控件的Visibility属性不能直接用true或者false绑定，而是要通过一个Converter来实现：

 

VisibilityConverter类代码：

using System;
using System.Windows;
using System.Windows.Data;

namespace DMS.Controls
{
    public class VisibilityConverter:IValueConverter
    {
        public VisibilityConverter()
        {
        }
        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            if (value == null)
                return Visibility.Collapsed;

            bool s = (bool)value;

            return (s != true) ? Visibility.Collapsed : Visibility.Visible;
        }

        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            throw new NotImplementedException();
        }

    }
}

 

在XAML里引用这个类：

 "False" Height="284" HorizontalAlignment="Left" Margin="5,63,0,0" Name="OrderList" VerticalAlignment="Top" Width="798" ItemsSource="{Binding}">

                                                            "iconverter"/>


                                                            "按钮是否可见示范绑定" Width="Auto">


                                                                        "Horizontal" HorizontalAlignment="Left">
                                                                            "Auto" Text="订单类别:"/>
                                                                            "XSJX_Confirm" Content="确认订单" Visibility="{Binding Path=XSJL_VISABLE,Converter={StaticResource iconverter}}"/>

 

其中： XSZJ_VISABLE 是bool 类型，= true 按钮可见；=false 按钮不可见，通过VisibilityConverter转成

Visibility.Collapsed 或 Visibility.Visible。