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我有一個userControl，它是一個帶有按鈕的列表框。記錄更新後，列表重新加載。我有一個轉換器來檢查按鈕是否可見。但是，即使按鈕的內容不可見，按鈕的邊框仍然可見。有人會告訴我該怎麼做嗎？提前致謝。無法使按鈕邊框不可見
還有就是我的用戶控件：
<UserControl x:Class="CMSPhoneApp.QueueListControl"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
FontFamily="{StaticResource PhoneFontFamilyNormal}"
FontSize="{StaticResource PhoneFontSizeNormal}"
Foreground="{StaticResource PhoneForegroundBrush}"
d:DesignHeight="480" d:DesignWidth="480"
xmlns:local="clr-namespace:CMSPhoneApp" >
<UserControl.Resources>
<local:VisibilityConverter x:Key="VisibilityConverter"/>
<local:ColumSpanConverter x:Key="ColumSpanConverter"/>
</UserControl.Resources>
<ListBox x:Name="lst" HorizontalAlignment="Left" Margin="6,6,0,0" VerticalAlignment="Top"
ItemsSource="{Binding Path=MyQueue}"
SelectedItem="{Binding Path=CurrentQueue, Mode=TwoWay}" Height="380" >
<ListBox.ItemTemplate>
<DataTemplate>
<!--<Border BorderThickness="0,1,0,1" BorderBrush="Blue">-->
<Grid x:Name="grd" Width="auto" HorizontalAlignment="Stretch" >
<Grid.RowDefinitions>
<RowDefinition Height="auto"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width=".1*" />
<ColumnDefinition Width=".6*"/>
<ColumnDefinition Width=".3*" />
</Grid.ColumnDefinitions>
<Image Source="{Binding Type}" Grid.Row="0" Grid.Column="0"/>
<TextBlock Grid.Row="0" Grid.Column="1" Grid.ColumnSpan= "{Binding isSpan, Converter={StaticResource ColumSpanConverter}}" Text="{Binding summary}" TextWrapping="Wrap"
Style="{StaticResource PhoneTextAccentStyle}" />
<Button x:Name="btnAction" Grid.Row="0" Grid.Column="2" ClickMode="Press" Click="btnAction_Click" Style="{StaticResource NoBorderButton}"
Visibility="{Binding isVisibility, Converter={StaticResource VisibilityConverter}}"
Tag="{Binding callNumber}">
<Button.Content>
<TextBlock Width="85" Height="35" Text="{Binding ActionCaption}"
/>
</Button.Content>
</Button>
<!-- the divider -->
<Line X1="0" X2="700" Y1="0" Y2="0" Grid.Row="0" Grid.ColumnSpan="3" Grid.Column="0"
VerticalAlignment="Bottom" Stroke="Blue" StrokeThickness="5"/>
</Grid>
<!--</Border>-->
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
有此按鈕
<Style x:Key="NoBorderButton" TargetType="Button">
<Setter Property="Background" Value="Transparent"/>
<Setter Property="BorderBrush" Value="{StaticResource PhoneForegroundBrush}"/>
<Setter Property="Foreground" Value="{StaticResource PhoneForegroundBrush}"/>
<Setter Property="BorderThickness" Value="{StaticResource PhoneBorderThickness}"/>
<Setter Property="FontFamily" Value="{StaticResource PhoneFontFamilySemiBold}"/>
<Setter Property="FontSize" Value="{StaticResource PhoneFontSizeMediumLarge}"/>
<Setter Property="Padding" Value="10,3,10,5"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Grid Background="Transparent">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualStateGroup.Transitions>
<VisualTransition From="Pressed" GeneratedDuration="0:0:0.2"/>
</VisualStateGroup.Transitions>
<VisualState x:Name="Normal">
<Storyboard>
<ColorAnimation Duration="0" To="#FFA3EF8F" Storyboard.TargetProperty="(Border.BorderBrush).(SolidColorBrush.Color)" Storyboard.TargetName="ButtonBackground" />
</Storyboard>
</VisualState>
<VisualState x:Name="Pressed">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="ButtonBackground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PhoneForegroundBrush}"/>
</ObjectAnimationUsingKeyFrames>
<ColorAnimation Duration="0" To="#FF104772" Storyboard.TargetProperty="(Control.Foreground).(SolidColorBrush.Color)" Storyboard.TargetName="ContentContainer" />
<ColorAnimation Duration="0" To="#FFEF8328" Storyboard.TargetProperty="(Control.BorderBrush).(SolidColorBrush.Color)" Storyboard.TargetName="ContentContainer" />
</Storyboard>
</VisualState>
<VisualState x:Name="Disabled">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="ButtonBackground">
<DiscreteObjectKeyFrame KeyTime="0" Value="Transparent"/>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Border x:Name="ButtonBackground" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" CornerRadius="0" Margin="{StaticResource PhoneTouchTargetOverhang}" BorderBrush="#FFF19D47">
<ContentControl x:Name="ContentContainer" ContentTemplate="{TemplateBinding ContentTemplate}" Content="{TemplateBinding Content}" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" Padding="{TemplateBinding Padding}" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}" BorderBrush="Black" BorderThickness="3"/>
</Border>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
的風格有MainPage.xaml中
<phone:PhoneApplicationPage xmlns:my="clr-namespace:CMSPhoneApp"
x:Class="CMSPhoneApp.TestPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"
xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
FontFamily="{StaticResource PhoneFontFamilyNormal}"
FontSize="{StaticResource PhoneFontSizeNormal}"
Foreground="{StaticResource PhoneForegroundBrush}"
SupportedOrientations="PortraitOrLandscape" Orientation="Portrait"
mc:Ignorable="d" d:DesignHeight="696" d:DesignWidth="480"
shell:SystemTray.IsVisible="True"
xmlns:local="clr-namespace:CMSPhoneApp"
xmlns:toolkit="clr- namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone.Controls.Toolkit"
>
<toolkit:TransitionService.NavigationInTransition>
<toolkit:NavigationInTransition>
<toolkit:NavigationInTransition.Backward>
<toolkit:TurnstileTransition Mode="BackwardIn"/>
</toolkit:NavigationInTransition.Backward>
<toolkit:NavigationInTransition.Forward>
<toolkit:TurnstileTransition Mode="ForwardIn"/>
</toolkit:NavigationInTransition.Forward>
</toolkit:NavigationInTransition>
</toolkit:TransitionService.NavigationInTransition>
<toolkit:TransitionService.NavigationOutTransition>
<toolkit:NavigationOutTransition>
<toolkit:NavigationOutTransition.Backward>
<toolkit:TurnstileTransition Mode="BackwardOut"/>
</toolkit:NavigationOutTransition.Backward>
<toolkit:NavigationOutTransition.Forward>
<toolkit:TurnstileTransition Mode="ForwardOut"/>
</toolkit:NavigationOutTransition.Forward>
</toolkit:NavigationOutTransition>
</toolkit:TransitionService.NavigationOutTransition>
<phone:PhoneApplicationPage.Resources>
<local:QueueItemViewModel x:Key="TestViewModel"/>
<DataTemplate x:Name="PickerItemTemplate">
<StackPanel Orientation="Horizontal" Margin="16 0 0 0">
<TextBlock Text="{Binding city}" FontSize="24" HorizontalAlignment="Center" VerticalAlignment="Center" />
</StackPanel>
</DataTemplate>
<DataTemplate x:Name="PickerFullModeItemTemplate">
<StackPanel Orientation="Horizontal" >
<TextBlock Text="{Binding city}" Margin="16 0 0 0" FontSize="24" FontFamily="{StaticResource PhoneFontFamilyLight}" />
</StackPanel>
</DataTemplate>
</phone:PhoneApplicationPage.Resources>
<!--LayoutRoot is the root grid where all page content is placed-->
<Grid x:Name="LayoutRoot" DataContext="{StaticResource TestViewModel}" Background="#FFF3CC62" >
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<!--TitlePanel contains the name of the application and page title-->
<StackPanel x:Name="TitlePanel" Grid.Row="0" Margin="12,17,0,28" >
<my:Title x:Name="thisTitle" TitleCaption="Queue" />
</StackPanel>
<StackPanel x:Name="City" Grid.Row="1" Margin="12,0,12,0" Orientation="Horizontal">
<toolkit:ListPicker x:Name="listPicker" ItemTemplate="{StaticResource PickerItemTemplate}"
Header="Location" CacheMode="BitmapCache" Width="194" FullModeItemTemplate="{StaticResource PickerFullModeItemTemplate}"
SelectedItem="{Binding city}" BorderBrush="#BF86EDA8" />
</StackPanel>
<!--ContentPanel - place additional content here-->
<my:QueueListControl x:Name="lst" Grid.Row="2" />
<!--<StackPanel Grid.Row="3" Orientation="Horizontal" >
<Button x:Name="btnQueue" Style="{StaticResource ButtonStyle1}" Content="Queue"/>
<Button x:Name="btnRefresh" Style="{StaticResource ButtonStyle1}" Content="Refresh"/>
</StackPanel>-->
</Grid>
<!--Sample code showing usage of ApplicationBar-->
<phone:PhoneApplicationPage.ApplicationBar>
<shell:ApplicationBar IsVisible="true" IsMenuEnabled="True" ForegroundColor="#FFABBBF6" BackgroundColor="#FFECED69">
<shell:ApplicationBarIconButton IconUri="images/menubar/flag.png" Text="Queue"/>
<shell:ApplicationBarIconButton IconUri="images/menubar/phone.png" Text="Call"/>
<shell:ApplicationBarIconButton IconUri="images/menubar/edit.png" Text="New Event"/>
<shell:ApplicationBarIconButton IconUri="images/menubar/checklist.png" Text="Events"/>
</shell:ApplicationBar>
</phone:PhoneApplicationPage.ApplicationBar>
有後面的代碼反彈的itemsSoruce：
//update the image and status to the list
private void UpdateUI()
{
foreach (QueueItem a in ar.cmsQueue)
{
if (Convert.ToInt32(a.callNumber) == currentCall.id)
{
a.status = UPSTATUS; //status:responded;
var location = (from c in ar.cmsQueue orderby c.callNumber select c);
Dispatcher.BeginInvoke(new Action(() => lst.lst.ItemsSource = location));
}
}
}