从对象中获取URI
本文关键字：URI 获取 对象 | 更新日期: 2023-09-27 17:52:34
我正在使用ModernUI开发一个WPF应用程序。它包含一个名为Link的控件，可用于在页面中导航。它也用于Tab控件中，用于在多个选项卡上显示页面(每个选项卡都用作链接)。
我的要求是动态生成选项卡，但在每个选项卡我必须显示相同的内容(相同的用户控制)。
设置链接内容的唯一方法是通过Source属性，该属性接受类型为URI的对象。
假设我创建5个选项卡(5个链接)并为每个选项卡设置相同的URI，那么UserControl对象在选项卡之间共享。(如果我在一个标签上做了改变，它会反映在所有其他标签上)。
我该如何预防?是否有一种方法可以使用运行时对象作为URI?
如果可以用其他方法完成，欢迎提出任何建议。谢谢! !
如果您确实有五个不同的选项卡，那么按照设计，您应该使用五个不同的源。如果您最初希望具有相同的内容，您应该创建五个不同的Uri类型对象实例，对应于五个Link。
除此之外，你还必须确保所有的Uri不指向相同的东西。如果他们这样做，在相同的东西的变化将反映在所有的选项卡。
这是我为我的原因修改的TabItem模板。希望对其他人也有帮助....
<ResourceDictionary
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mui="http://firstfloorsoftware.com/ModernUI">
<SolidColorBrush x:Key="TabControlNormalBorderBrush" Color="#8C8E94"/>
<LinearGradientBrush x:Key="ButtonNormalBackground" EndPoint="0,1" StartPoint="0,0">
<GradientStop Color="#F3F3F3" Offset="0"/>
<GradientStop Color="#EBEBEB" Offset="0.5"/>
<GradientStop Color="#DDDDDD" Offset="0.5"/>
<GradientStop Color="#CDCDCD" Offset="1"/>
</LinearGradientBrush>
<LinearGradientBrush x:Key="TabItemHotBackground" EndPoint="0,1" StartPoint="0,0">
<GradientStop Color="#EAF6FD" Offset="0.15"/>
<GradientStop Color="#D9F0FC" Offset=".5"/>
<GradientStop Color="#BEE6FD" Offset=".5"/>
<GradientStop Color="#A7D9F5" Offset="1"/>
</LinearGradientBrush>
<SolidColorBrush x:Key="TabItemSelectedBackground" Color="#F9F9F9"/>
<SolidColorBrush x:Key="TabItemHotBorderBrush" Color="{DynamicResource AccentColor}" Opacity="0.1"/>
<SolidColorBrush x:Key="TabItemDisabledBackground" Color="#F4F4F4"/>
<SolidColorBrush x:Key="TabItemDisabledBorderBrush" Color="#FFC9C7BA"/>
<Style x:Key="TabItemStyle" TargetType="{x:Type TabItem}">
<Setter Property="Foreground" Value="Black"/>
<Setter Property="Padding" Value="6,1,6,1"/>
<Setter Property="BorderBrush" Value="{StaticResource TabControlNormalBorderBrush}"/>
<Setter Property="Background" Value="{StaticResource ButtonNormalBackground}"/>
<Setter Property="HorizontalContentAlignment" Value="Stretch"/>
<Setter Property="VerticalContentAlignment" Value="Stretch"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type TabItem}">
<Grid SnapsToDevicePixels="true">
<Border x:Name="Bd" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="0,0,0,0" Margin="5,0,5,0"
Background="{TemplateBinding Background}" Padding="{TemplateBinding Padding}">
<Grid>
<Label x:Name="LblCon" Content="{TemplateBinding Header}" FontSize="18"
SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"
HorizontalAlignment="{Binding HorizontalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"
VerticalAlignment="{Binding VerticalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"/>
<Border x:Name="Overlay" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="0,0,0,0" Opacity="0.1"
Background="{TemplateBinding Background}" Padding="{TemplateBinding Padding}"></Border>
</Grid>
</Border>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="true">
<Setter Property="Background" TargetName="Overlay" Value="{DynamicResource Accent}"/>
</Trigger>
<Trigger Property="IsSelected" Value="true">
<Setter Property="Panel.ZIndex" Value="1"/>
<Setter Property="BorderThickness" TargetName="Bd" Value="0,0,0,3"/>
<Setter Property="BorderBrush" TargetName="Bd" Value="{DynamicResource Accent}"/>
<Setter Property="FontSize" TargetName="LblCon" Value="18"/>
<Setter Property="FontWeight" TargetName="LblCon" Value="Bold" />
</Trigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsSelected" Value="false"/>
<Condition Property="IsMouseOver" Value="true"/>
</MultiTrigger.Conditions>
<Setter Property="BorderBrush" TargetName="Overlay" Value="{DynamicResource Accent}"/>
</MultiTrigger>
<Trigger Property="TabStripPlacement" Value="Bottom">
<Setter Property="BorderThickness" TargetName="Bd" Value="0"/>
</Trigger>
<Trigger Property="TabStripPlacement" Value="Left">
<Setter Property="BorderThickness" TargetName="Bd" Value="0"/>
</Trigger>
<Trigger Property="TabStripPlacement" Value="Right">
<Setter Property="BorderThickness" TargetName="Bd" Value="0"/>
</Trigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsSelected" Value="true"/>
<Condition Property="TabStripPlacement" Value="Top"/>
</MultiTrigger.Conditions>
<Setter Property="Margin" Value="-2,-2,-2,-1"/>
<Setter Property="Margin" TargetName="LblCon" Value="0,0,0,1"/>
</MultiTrigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsSelected" Value="true"/>
<Condition Property="TabStripPlacement" Value="Bottom"/>
</MultiTrigger.Conditions>
<Setter Property="Margin" Value="-2,-1,-2,-2"/>
<Setter Property="Margin" TargetName="LblCon" Value="0,1,0,0"/>
</MultiTrigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsSelected" Value="true"/>
<Condition Property="TabStripPlacement" Value="Left"/>
</MultiTrigger.Conditions>
<Setter Property="Margin" Value="-2,-2,-1,-2"/>
<Setter Property="Margin" TargetName="LblCon" Value="0,0,1,0"/>
</MultiTrigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsSelected" Value="true"/>
<Condition Property="TabStripPlacement" Value="Right"/>
</MultiTrigger.Conditions>
<Setter Property="Margin" Value="-1,-2,-2,-2"/>
<Setter Property="Margin" TargetName="LblCon" Value="1,0,0,0"/>
</MultiTrigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Background" TargetName="Bd" Value="{StaticResource TabItemDisabledBackground}"/>
<Setter Property="BorderBrush" TargetName="Bd" Value="{StaticResource TabItemDisabledBorderBrush}"/>
<Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>