Windows Phone 7中带题头的TextBox和PasswordBox

Windows Phone 7中带题头的TextBox和PasswordBox

 

之前在做豆瓣电台的时候想实现一个登录界面，起初是把TextBlock和TextBox放在一起（效果如下），但是这样实现出来的效果既浪费空间，又不美观。

因为之前写WPF对自定义控件有一些基础，所以就对TextBox和Password的Template做了些手脚，让题头融合到控件里。这样既美观又节省空间，同时还可以保证不会推动系统控件风格和功能，如下图：

实现上面的效果非常简单，只需要在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"/>

        </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}"/>

        </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" />

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~

 

摘自：博比123