实现带题头的TextBox和PasswordBox

最新推荐文章于 2020-10-19 16:40:26 发布

转载最新推荐文章于 2020-10-19 16:40:26 发布 · 428 阅读

文章标签：

#textbox #setter #border #blend #application

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本文详细介绍了如何在XAML中自定义TextBox和PasswordBox的样式，并提供了实例代码，包括设置字体、大小、背景、前景色、边框等属性。同时，展示了如何在代码中引用并应用这些样式，使界面更加个性化。

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今天在网上看到一篇修改TextBox和PasswordBox模板的文章，很值得学习学习：

在Blend中创建一个新的TextBox，然后右键-Edit Template-Edit a Copy。在弹出的对话框中的Name设定一个名字，如“LabelTextBox”，然后在Define in中选择Application以在整个程序范围内都可以使用它。

操作完这些以后Blend会自动在App.xaml里创建一个新的Style资源，我们在里面搜索一下ContentControl，这就是TextBox中显示文字的元素了。剩下的就是对这个元素进行改造，如调整位置，添加新元素等等。下面是我写的TextBox和PasswordBox的资源：

    <controltemplate x:key="PhoneDisabledTextBoxTemplate" targettype="TextBox">  
        <contentcontrol x:name="ContentElement" borderthickness="0" horizontalcontentalignment="Stretch" margin="{StaticResource PhoneTextBoxInnerMargin}" padding="{TemplateBinding Padding}" verticalcontentalignment="Stretch">  
    </contentcontrol></controltemplate>  
    <style x:key="LabelTextBox" targettype="TextBox">  
        <Setter Property="FontFamily" Value="{StaticResource PhoneFontFamilyNormal}"/>  
        <Setter Property="FontSize" Value="{StaticResource PhoneFontSizeMediumLarge}"/>  
        <Setter Property="Background" Value="{StaticResource PhoneTextBoxBrush}"/>  
        <Setter Property="Foreground" Value="{StaticResource PhoneTextBoxForegroundBrush}"/>  
        <Setter Property="BorderBrush" Value="{StaticResource PhoneTextBoxBrush}"/>  
        <Setter Property="SelectionBackground" Value="{StaticResource PhoneAccentBrush}"/>  
        <Setter Property="SelectionForeground" Value="{StaticResource PhoneTextBoxSelectionForegroundBrush}"/>  
        <Setter Property="BorderThickness" Value="{StaticResource PhoneBorderThickness}"/>  
        <Setter Property="Padding" Value="2"/>  
        <Setter Property="Template">  
            <Setter.Value>  
                <ControlTemplate TargetType="TextBox">  
                    <Grid Background="Transparent">  
                        <VisualStateManager.VisualStateGroups>  
                            <VisualStateGroup x:Name="CommonStates">  
                                <VisualState x:Name="Normal"/>  
                                <VisualState x:Name="MouseOver"/>  
                                <VisualState x:Name="Disabled">  
                                    <Storyboard>  
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="EnabledBorder">  
                                            <DiscreteObjectKeyFrame KeyTime="0">  
                                                <DiscreteObjectKeyFrame.Value>  
                                                    <Visibility>Collapsed</Visibility>  
                                                </DiscreteObjectKeyFrame.Value>  
                                            </DiscreteObjectKeyFrame>  
                                        </ObjectAnimationUsingKeyFrames>  
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="DisabledOrReadonlyBorder">  
                                            <DiscreteObjectKeyFrame KeyTime="0">  
                                                <DiscreteObjectKeyFrame.Value>  
                                                    <Visibility>Visible</Visibility>  
                                                </DiscreteObjectKeyFrame.Value>  
                                            </DiscreteObjectKeyFrame>  
                                        </ObjectAnimationUsingKeyFrames>  
                                    </Storyboard>  
                                </VisualState>  
                                <VisualState x:Name="ReadOnly">  
                                    <Storyboard>  
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="EnabledBorder">  
                                            <DiscreteObjectKeyFrame KeyTime="0">  
                                                <DiscreteObjectKeyFrame.Value>  
                                                    <Visibility>Collapsed</Visibility>  
                                                </DiscreteObjectKeyFrame.Value>  
                                            </DiscreteObjectKeyFrame>  
                                        </ObjectAnimationUsingKeyFrames>  
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="DisabledOrReadonlyBorder">  
                                            <DiscreteObjectKeyFrame KeyTime="0">  
                                                <DiscreteObjectKeyFrame.Value>  
                                                    <Visibility>Visible</Visibility>  
                                                </DiscreteObjectKeyFrame.Value>  
                                            </DiscreteObjectKeyFrame>  
                                        </ObjectAnimationUsingKeyFrames>  
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="DisabledOrReadonlyBorder">  
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PhoneTextBoxBrush}"/>  
                                        </ObjectAnimationUsingKeyFrames>  
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="BorderBrush" Storyboard.TargetName="DisabledOrReadonlyBorder">  
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PhoneTextBoxBrush}"/>  
                                        </ObjectAnimationUsingKeyFrames>  
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="DisabledOrReadonlyContent">  
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PhoneTextBoxReadOnlyBrush}"/>  
                                        </ObjectAnimationUsingKeyFrames>  
                                    </Storyboard>  
                                </VisualState>  
                            </VisualStateGroup>  
                            <VisualStateGroup x:Name="FocusStates">  
                                <VisualState x:Name="Focused">  
                                    <Storyboard>  
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="EnabledBorder">  
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PhoneTextBoxEditBackgroundBrush}"/>  
                                        </ObjectAnimationUsingKeyFrames>  
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="BorderBrush" Storyboard.TargetName="EnabledBorder">  
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PhoneTextBoxEditBorderBrush}"/>  
                                        </ObjectAnimationUsingKeyFrames>  
                                    </Storyboard>  
                                </VisualState>  
                                <VisualState x:Name="Unfocused"/>  
                            </VisualStateGroup>  
                        </VisualStateManager.VisualStateGroups>  
                        <Border x:Name="EnabledBorder" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Margin="{StaticResource PhoneTouchTargetOverhang}">  
                            <Grid>  
                                <Grid.ColumnDefinitions>  
                                    <ColumnDefinition Width="Auto" />  
                                    <ColumnDefinition Width="*" />  
                                </Grid.ColumnDefinitions>  
                                <TextBlock Grid.Column="0" Margin="10, 0" Text="{TemplateBinding Tag}" VerticalAlignment="Center" />  
                                <ContentControl Grid.Column="1" x:Name="ContentElement" BorderThickness="0" HorizontalContentAlignment="Stretch" Margin="1,2,1,2" Padding="{TemplateBinding Padding}" VerticalContentAlignment="Stretch" VerticalAlignment="Center"/>  
                            </Grid>  
                        </Border>  
                        <Border x:Name="DisabledOrReadonlyBorder" BorderBrush="{StaticResource PhoneDisabledBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="Transparent" Margin="{StaticResource PhoneTouchTargetOverhang}" Visibility="Collapsed">  
                            <Grid>  
                                <Grid.ColumnDefinitions>  
                                    <ColumnDefinition Width="Auto" />  
                                    <ColumnDefinition Width="*" />  
                                </Grid.ColumnDefinitions>  
                                <TextBlock Grid.Column="0" Margin="10, 0" Text="{TemplateBinding Tag}" VerticalAlignment="Center" Foreground="{StaticResource PhoneDisabledBrush}" FontWeight="{TemplateBinding FontWeight}" FontStyle="{TemplateBinding FontStyle}" FontSize="{TemplateBinding FontSize}" FontFamily="{TemplateBinding FontFamily}" />  
                                <TextBox Grid.Column="1" x:Name="DisabledOrReadonlyContent" Background="Transparent" Foreground="{StaticResource PhoneDisabledBrush}" FontWeight="{TemplateBinding FontWeight}" FontStyle="{TemplateBinding FontStyle}" FontSize="{TemplateBinding FontSize}" FontFamily="{TemplateBinding FontFamily}" IsReadOnly="True" SelectionForeground="{TemplateBinding SelectionForeground}" SelectionBackground="{TemplateBinding SelectionBackground}" TextAlignment="{TemplateBinding TextAlignment}" TextWrapping="{TemplateBinding TextWrapping}" Text="{TemplateBinding Text}" Template="{StaticResource PhoneDisabledTextBoxTemplate}"/>  
                            </Grid>  
                        </Border>  
                    </Grid>  
                </ControlTemplate>  
            </Setter.Value>  
        </Setter>  
    </style>  
    <controltemplate x:key="PhoneDisabledPasswordBoxTemplate" targettype="PasswordBox">  
        <border x:name="ContentElement" borderthickness="0" margin="{StaticResource PhonePasswordBoxInnerMargin}" padding="{TemplateBinding Padding}">  
    </border></controltemplate>  
    <style x:key="LabelPassword" targettype="PasswordBox">  
        <Setter Property="FontFamily" Value="{StaticResource PhoneFontFamilyNormal}"/>  
        <Setter Property="FontSize" Value="{StaticResource PhoneFontSizeMediumLarge}"/>  
        <Setter Property="Background" Value="{StaticResource PhoneTextBoxBrush}"/>  
        <Setter Property="Foreground" Value="{StaticResource PhoneTextBoxForegroundBrush}"/>  
        <Setter Property="BorderBrush" Value="{StaticResource PhoneTextBoxBrush}"/>  
        <Setter Property="BorderThickness" Value="{StaticResource PhoneBorderThickness}"/>  
        <Setter Property="SelectionBackground" Value="{StaticResource PhoneAccentBrush}"/>  
        <Setter Property="SelectionForeground" Value="{StaticResource PhoneContrastBackgroundBrush}"/>  
        <Setter Property="Padding" Value="2"/>  
        <Setter Property="Template">  
            <Setter.Value>  
                <ControlTemplate TargetType="PasswordBox">  
                    <Grid Background="Transparent">  
                        <VisualStateManager.VisualStateGroups>  
                            <VisualStateGroup x:Name="CommonStates">  
                                <VisualState x:Name="Normal"/>  
                                <VisualState x:Name="MouseOver"/>  
                                <VisualState x:Name="Disabled">  
                                    <Storyboard>  
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="EnabledBorder">  
                                            <DiscreteObjectKeyFrame KeyTime="0">  
                                                <DiscreteObjectKeyFrame.Value>  
                                                    <Visibility>Collapsed</Visibility>  
                                                </DiscreteObjectKeyFrame.Value>  
                                            </DiscreteObjectKeyFrame>  
                                        </ObjectAnimationUsingKeyFrames>  
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="DisabledBorder">  
                                            <DiscreteObjectKeyFrame KeyTime="0">  
                                                <DiscreteObjectKeyFrame.Value>  
                                                    <Visibility>Visible</Visibility>  
                                                </DiscreteObjectKeyFrame.Value>  
                                            </DiscreteObjectKeyFrame>  
                                        </ObjectAnimationUsingKeyFrames>  
                                    </Storyboard>  
                                </VisualState>  
                            </VisualStateGroup>  
                            <VisualStateGroup x:Name="FocusStates">  
                                <VisualState x:Name="Focused">  
                                    <Storyboard>  
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="EnabledBorder">  
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PhoneTextBoxEditBackgroundBrush}"/>  
                                        </ObjectAnimationUsingKeyFrames>  
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="BorderBrush" Storyboard.TargetName="EnabledBorder">  
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PhoneTextBoxEditBorderBrush}"/>  
                                        </ObjectAnimationUsingKeyFrames>  
                                    </Storyboard>  
                                </VisualState>  
                                <VisualState x:Name="Unfocused"/>  
                            </VisualStateGroup>  
                        </VisualStateManager.VisualStateGroups>  
                        <Border x:Name="EnabledBorder" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Margin="{StaticResource PhoneTouchTargetOverhang}">  
                            <Grid>  
                                <Grid.ColumnDefinitions>  
                                    <ColumnDefinition Width="Auto" />  
                                    <ColumnDefinition Width="*" />  
                                </Grid.ColumnDefinitions>  
                                <TextBlock Grid.Column="0" Margin="10, 0" Text="{TemplateBinding Tag}" VerticalAlignment="Center" />  
                                <Border Grid.Column="1" x:Name="ContentElement" BorderThickness="0" Margin="{StaticResource PhonePasswordBoxInnerMargin}" Padding="{TemplateBinding Padding}"/>  
                            </Grid>  
                        </Border>  
                        <Border x:Name="DisabledBorder" BorderBrush="{StaticResource PhoneDisabledBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="Transparent" Margin="{StaticResource PhoneTouchTargetOverhang}" Visibility="Collapsed">  
                            <Grid>  
                                <Grid.ColumnDefinitions>  
                                    <ColumnDefinition Width="Auto" />  
                                    <ColumnDefinition Width="*" />  
                                </Grid.ColumnDefinitions>  
                                <TextBlock Grid.Column="0" Margin="10, 0" Text="{TemplateBinding Tag}" VerticalAlignment="Center" Foreground="{StaticResource PhoneDisabledBrush}" FontWeight="{TemplateBinding FontWeight}" FontStyle="{TemplateBinding FontStyle}" FontSize="{TemplateBinding FontSize}" FontFamily="{TemplateBinding FontFamily}" />  
                                <PasswordBox Grid.Column="1" x:Name="DisabledContent" Background="Transparent" Foreground="{StaticResource PhoneDisabledBrush}" Password="{TemplateBinding Password}" PasswordChar="{TemplateBinding PasswordChar}" Template="{StaticResource PhoneDisabledPasswordBoxTemplate}"/>  
                            </Grid>  
                        </Border>  
                    </Grid>  
                </ControlTemplate>  
            </Setter.Value>  
        </Setter>  
    </style>

Ok，样式设定完毕，要使用的时候就非常简单了，在项目里的任何一个TextBox或者PasswordBox中像这样使用它就可以了：

    <textbox tag="帐号：" style="{StaticResource LabelTextBox}" name="Username">  
    <passwordbox tag="密码：" style="{StaticResource LabelPassword}" name="Password">  
    </passwordbox></textbox>

大功告成！其中Tag是控件前面题头里的文字，而TextBox和PasswordBox的功能不会受到任何影响~

原文地址：http://blog.zkd.me/archives/33