我需要一些帮助。
我有两个控件,一个ComboBox和一个TextBox,我需要将BorderBrush属性更改为其他颜色,使用de TextBox它可以完美地工作,但是使用ComboBox却没有。这是我的代码。
<ComboBox x:Name="cmbCombo" HorizontalAlignment="Left" Margin="155,98,0,0" VerticalAlignment="Top" Width="120" />
<TextBox x:Name="txtCaja" HorizontalAlignment="Left" Height="23" Margin="158,56,0,0" TextWrapping="Wrap" Text="TextBox" VerticalAlignment="Top" Width="120"/>
<Button Content="Button" HorizontalAlignment="Left" Margin="174,155,0,0" VerticalAlignment="Top" Width="75" Click="Button_Click_1"/>
cmbCombo.BorderThickness = new Thickness(3);
cmbCombo.BorderBrush = Brushes.OrangeRed;
txtCaja.BorderThickness = new Thickness(3);
txtCaja.BorderBrush = Brushes.OrangeRed;
谢谢大家。
答案 0 :(得分:4)
尝试将cmbCombo
ComboBox包装在Border
:
<Border x:Name="comboBorder" HorizontalAlignment="Left"
Margin="155,98,0,0" VerticalAlignment="Top">
<ComboBox x:Name="cmbCombo" Width="120" />
</Border>
然后在您的代码隐藏中:
comboBorder.BorderThickness = new Thickness(3);
comboBorder.BorderBrush = Brushes.OrangeRed;
答案 1 :(得分:2)
可以将属性BorderBrush
设置为制作所需的颜色或画笔:
<ComboBox Margin="10" BorderBrush="Red">
<ComboBoxItem>No Device Selected</ComboBoxItem>
</ComboBox>
结果:
如果您想要更粗的边框,请使用BorderThickness
属性:
<ComboBox Margin="10" BorderBrush="Red" BorderThickness="3">
<ComboBoxItem>No Device Selected</ComboBoxItem>
</ComboBox>
<强>更新强>
对于Windows 8
,您应该在Controltemplate
的{{1}}中写信:
ComboBox
例如:
BasedOn="{StaticResource {x:Type ComboBox}}"
并在<Style x:Key="ComboBoxStyle1" TargetType="{x:Type ComboBox}" BasedOn="{StaticResource {x:Type ComboBox}}">
<Setter Property="SnapsToDevicePixels" Value="True"/>
<Setter Property="OverridesDefaultStyle" Value="True"/>
<Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Auto"/>
<Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto"/>
<Setter Property="ScrollViewer.CanContentScroll" Value="True"/>
<Setter Property="TextElement.Foreground" Value="Black"/>
<Setter Property="FocusVisualStyle" Value="{x:Null}"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ComboBox}">
<Border BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}">
<Grid>
<ToggleButton x:Name="ToggleButton" Grid.Column="2"
ClickMode="Press" Focusable="False"
IsChecked="{Binding IsDropDownOpen, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}"
Template="{StaticResource ComboBoxToggleButtonTemplate}"/>
<ContentPresenter x:Name="ContentSite" Margin="5, 3, 23, 3" IsHitTestVisible="False"
HorizontalAlignment="Left" VerticalAlignment="Center"
Content="{TemplateBinding SelectionBoxItem}"
ContentTemplate="{TemplateBinding SelectionBoxItemTemplate}"
ContentTemplateSelector="{TemplateBinding ItemTemplateSelector}"/>
<TextBox x:Name="PART_EditableTextBox" Margin="3, 3, 23, 3"
IsReadOnly="{TemplateBinding IsReadOnly}"
Visibility="Hidden" Background="Transparent"
HorizontalAlignment="Left" VerticalAlignment="Center"
Focusable="True" >
<TextBox.Template>
<ControlTemplate TargetType="{x:Type TextBox}" >
<Border x:Name="PART_ContentHost" Focusable="False" />
</ControlTemplate>
</TextBox.Template>
</TextBox>
<!-- Popup showing items -->
<Popup x:Name="Popup" Placement="Bottom"
Focusable="False" AllowsTransparency="True"
IsOpen="{TemplateBinding IsDropDownOpen}"
PopupAnimation="Slide" >
<Grid x:Name="DropDown" SnapsToDevicePixels="True"
MinWidth="{TemplateBinding ActualWidth}"
MaxHeight="{TemplateBinding MaxDropDownHeight}">
<Border x:Name="DropDownBorder" Background="Transparent" Margin="0, 1, 0, 0"
CornerRadius="0" BorderThickness="1,1,1,1"
BorderBrush="{StaticResource ComboBoxNormalBorderBrush}"/>
<ScrollViewer Margin="4" SnapsToDevicePixels="True">
<ItemsPresenter KeyboardNavigation.DirectionalNavigation="Contained" />
</ScrollViewer>
</Grid>
</Popup>
</Grid>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="HasItems" Value="False">
<Setter Property="MinHeight" TargetName="DropDownBorder" Value="95"/>
</Trigger>
<Trigger Property="IsEnabled" Value="False">
<Setter Property="TextElement.Foreground" Value="{StaticResource ComboBoxDisabledForegroundBrush}"/>
</Trigger>
<Trigger Property="IsGrouping" Value="True">
<Setter Property="ScrollViewer.CanContentScroll" Value="False"/>
</Trigger>
<Trigger Property="IsEditable" Value="True">
<Setter Property="KeyboardNavigation.IsTabStop" Value="False"/>
<Setter Property="Visibility" TargetName="PART_EditableTextBox" Value="Visible"/>
<Setter Property="Visibility" TargetName="ContentSite" Value="Hidden"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
中使用此Style
:
ComboBox
或:
<ComboBox Style="{DynamicResource ComboBoxStyle1}" >
<ComboBoxItem Content="1"/>
<ComboBoxItem Content="2"/>
<ComboBoxItem Content="3"/>
</ComboBox>