给 TextBox文本框前添加图片

扩展PhoneTextBox:添加一个类“ExtentPhoneTextBox”继承 PhoneTextBox ，在“ExtentPhoneTextBox”类中添加属性项：

 public class ExtentPhoneTextBox : PhoneTextBox

    {

        /// <summary>

        /// 文本框图片属性

        /// </summary>

        public static readonly DependencyProperty TextHeadImageProperty =

            DependencyProperty.Register("TextHeadImage", typeof(ImageSource), typeof(ExtentPhoneTextBox), new PropertyMetadata(null)

            );

        /// <summary>

        /// 文本框头图片

        /// </summary>

        public ImageSource TextHeadImage

        {

            get { return base.GetValue(TextHeadImageProperty) as ImageSource; }

            set { base.SetValue(TextHeadImageProperty, value); }

        }

        /// <summary>

        /// 文本图片宽度

        /// </summary>

        public double TextHeadImageWidth

        {

            get { return (double)GetValue(TextHeadImageWidthProperty); }

            set { SetValue(TextHeadImageWidthProperty, value); }

        }

        // Using a DependencyProperty as the backing store for TextHeadImageWidth.  This enables animation, styling, binding, etc...

        public static readonly DependencyProperty TextHeadImageWidthProperty =

            DependencyProperty.Register("TextHeadImageWidth", typeof(double), typeof(ExtentPhoneTextBox), new PropertyMetadata(null));

        /// <summary>

        /// 文本图片高度

        /// </summary>

        public double TextHeadImageHeight

        {

            get { return (double)GetValue(TextHeadImageHeightProperty); }

            set { SetValue(TextHeadImageHeightProperty, value); }

        }

        // Using a DependencyProperty as the backing store for TextHeadImageHeight.  This enables animation, styling, binding, etc...

        public static readonly DependencyProperty TextHeadImageHeightProperty =

            DependencyProperty.Register("TextHeadImageHeight", typeof(double), typeof(ExtentPhoneTextBox), new PropertyMetadata(null));

    }

}

ExtentPhoneText 样式编辑：

 

全部样式如下：

<DataTemplate x:Key="ControlHeaderTemplate">

            <TextBlock FontSize="{StaticResource PhoneFontSizeNormal}" FontFamily="{StaticResource PhoneFontFamilyNormal}" LineStackingStrategy="BlockLineHeight" LineHeight="23.333" Margin="0,-9,0,0" TextWrapping="Wrap" Text="{Binding}">

                <TextBlock.RenderTransform>

                    <TranslateTransform X="-1" Y="4"/>

                </TextBlock.RenderTransform>

            </TextBlock>

        </DataTemplate>

        <toolkit:SingleDataTemplateSelector x:Key="ControlHeaderTemplateSelector" Template="{StaticResource ControlHeaderTemplate}"/>

        <Style x:Key="ExtentPhoneTextBoxStyle" TargetType="ExtentCtrs:ExtentPhoneTextBox">

            <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="6,0,6,4"/>

            <Setter Property="HorizontalContentAlignment" Value="Left"/>

            <Setter Property="Template">

                <Setter.Value>

                    <ControlTemplate TargetType="ExtentCtrs:ExtentPhoneTextBox">

                        <Grid x:Name="RootGrid" Background="Transparent">

                            <Grid.RowDefinitions>

                                <RowDefinition Height="Auto"/>

                                <RowDefinition/>

                            </Grid.RowDefinitions>

                            <VisualStateManager.VisualStateGroups>

                                <VisualStateGroup x:Name="CommonStates">

                                    <VisualState x:Name="Normal"/>

                                    <VisualState x:Name="Disabled">

                                        <Storyboard>

                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="Header">

                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PhoneTextLowContrastBrush}"/>

                                            </ObjectAnimationUsingKeyFrames>

                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="MainBorder">

                                                <DiscreteObjectKeyFrame KeyTime="0" Value="Transparent"/>

                                            </ObjectAnimationUsingKeyFrames>

                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="BorderBrush" Storyboard.TargetName="MainBorder">

                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PhoneDisabledBrush}"/>

                                            </ObjectAnimationUsingKeyFrames>

                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="ContentElement">

                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PhoneDisabledBrush}"/>

                                            </ObjectAnimationUsingKeyFrames>

                                        </Storyboard>

                                    </VisualState>

                                    <VisualState x:Name="ReadOnly">

                                        <Storyboard>

                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="MainBorder">

                                                <DiscreteObjectKeyFrame KeyTime="0">

                                                    <DiscreteObjectKeyFrame.Value>

                                                        <Visibility>Collapsed</Visibility>

                                                    </DiscreteObjectKeyFrame.Value>

                                                </DiscreteObjectKeyFrame>

                                            </ObjectAnimationUsingKeyFrames>

                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="ReadonlyBorder">

                                                <DiscreteObjectKeyFrame KeyTime="0">

                                                    <DiscreteObjectKeyFrame.Value>

                                                        <Visibility>Visible</Visibility>

                                                    </DiscreteObjectKeyFrame.Value>

                                                </DiscreteObjectKeyFrame>

                                            </ObjectAnimationUsingKeyFrames>

                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="ReadonlyBorder">

                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PhoneTextBoxBrush}"/>

                                            </ObjectAnimationUsingKeyFrames>

                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="BorderBrush" Storyboard.TargetName="ReadonlyBorder">

                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PhoneTextBoxBrush}"/>

                                            </ObjectAnimationUsingKeyFrames>

                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="ContentElement">

                                                <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="MainBorder">

                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PhoneTextBoxEditBackgroundBrush}"/>

                                            </ObjectAnimationUsingKeyFrames>

                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="BorderBrush" Storyboard.TargetName="MainBorder">

                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PhoneTextBoxEditBorderBrush}"/>

                                            </ObjectAnimationUsingKeyFrames>

                                        </Storyboard>

                                    </VisualState>

                                    <VisualState x:Name="Unfocused"/>

                                </VisualStateGroup>

                                <VisualStateGroup x:Name="LengthIndicatorStates">

                                    <VisualStateGroup.Transitions>

                                        <VisualTransition From="LengthIndicatorHidden" To="LengthIndicatorVisible">

                                            <Storyboard>

                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="LengthIndicator">

                                                    <DiscreteObjectKeyFrame KeyTime="0:0:0">

                                                        <DiscreteObjectKeyFrame.Value>

                                                            <Visibility>Visible</Visibility>

                                                        </DiscreteObjectKeyFrame.Value>

                                                    </DiscreteObjectKeyFrame>

                                                </ObjectAnimationUsingKeyFrames>

                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Margin" Storyboard.TargetName="RootGrid">

                                                    <DiscreteObjectKeyFrame KeyTime="0:0:0" Value="0, 0, 0, 25"/>

                                                </ObjectAnimationUsingKeyFrames>

                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity" Storyboard.TargetName="LengthIndicator">

                                                    <DiscreteObjectKeyFrame KeyTime="0:0:0" Value="1"/>

                                                </ObjectAnimationUsingKeyFrames>

                                                <DoubleAnimation Duration="0:0:0.350" To="27" Storyboard.TargetProperty="(UIElement.RenderTransform).(TranslateTransform.Y)" Storyboard.TargetName="LengthIndicator">

                                                    <DoubleAnimation.EasingFunction>

                                                        <ExponentialEase Exponent="6"/>

                                                    </DoubleAnimation.EasingFunction>

                                                </DoubleAnimation>

                                            </Storyboard>

                                        </VisualTransition>

                                        <VisualTransition From="LengthIndicatorVisible" To="LengthIndicatorHidden">

                                            <Storyboard>

                                                <DoubleAnimation Duration="0:0:0.350" To="0" Storyboard.TargetProperty="(UIElement.RenderTransform).(TranslateTransform.Y)" Storyboard.TargetName="LengthIndicator">

                                                    <DoubleAnimation.EasingFunction>

                                                        <ExponentialEase Exponent="6"/>

                                                    </DoubleAnimation.EasingFunction>

                                                </DoubleAnimation>

                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Margin" Storyboard.TargetName="RootGrid">

                                                    <DiscreteObjectKeyFrame KeyTime="0:0:0" Value="0, 0, 0, 0"/>

                                                </ObjectAnimationUsingKeyFrames>

                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity" Storyboard.TargetName="LengthIndicator">

                                                    <DiscreteObjectKeyFrame KeyTime="0:0:0.350" Value="0"/>

                                                </ObjectAnimationUsingKeyFrames>

                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="LengthIndicator">

                                                    <DiscreteObjectKeyFrame KeyTime="0:0:0.350">

                                                        <DiscreteObjectKeyFrame.Value>

                                                            <Visibility>Collapsed</Visibility>

                                                        </DiscreteObjectKeyFrame.Value>

                                                    </DiscreteObjectKeyFrame>

                                                </ObjectAnimationUsingKeyFrames>

                                            </Storyboard>

                                        </VisualTransition>

                                    </VisualStateGroup.Transitions>

                                    <VisualState x:Name="LengthIndicatorVisible">

                                        <Storyboard>

                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="LengthIndicator">

                                                <DiscreteObjectKeyFrame KeyTime="0:0:0">

                                                    <DiscreteObjectKeyFrame.Value>

                                                        <Visibility>Visible</Visibility>

                                                    </DiscreteObjectKeyFrame.Value>

                                                </DiscreteObjectKeyFrame>

                                            </ObjectAnimationUsingKeyFrames>

                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Margin" Storyboard.TargetName="RootGrid">

                                                <DiscreteObjectKeyFrame KeyTime="0:0:0" Value="0, 0, 0, 25"/>

                                            </ObjectAnimationUsingKeyFrames>

                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity" Storyboard.TargetName="LengthIndicator">

                                                <DiscreteObjectKeyFrame KeyTime="0:0:0" Value="1"/>

                                            </ObjectAnimationUsingKeyFrames>

                                            <DoubleAnimation Duration="0" To="27" Storyboard.TargetProperty="(UIElement.RenderTransform).(TranslateTransform.Y)" Storyboard.TargetName="LengthIndicator"/>

                                        </Storyboard>

                                    </VisualState>

                                    <VisualState x:Name="LengthIndicatorHidden"/>

                                </VisualStateGroup>

                            </VisualStateManager.VisualStateGroups>

                            <toolkit:PhoneContentControl x:Name="Header" ContentTemplate="{TemplateBinding HeaderTemplate}" ContentTemplateSelector="{StaticResource ControlHeaderTemplateSelector}" Content="{TemplateBinding Header}" Foreground="{StaticResource PhoneTextMidContrastBrush}" FontSize="{StaticResource PhoneFontSizeNormal}" FontFamily="{StaticResource PhoneFontFamilyNormal}" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{StaticResource PhoneHorizontalMargin}"/>

                            <Border x:Name="LengthIndicatorBorder" Grid.Row="1">

                                <TextBlock x:Name="LengthIndicator" CacheMode="BitmapCache" Foreground="{StaticResource PhoneTextMidContrastBrush}" FontSize="{StaticResource PhoneFontSizeNormal}" FontFamily="{StaticResource PhoneFontFamilyNormal}" HorizontalAlignment="Right" Margin="{StaticResource PhoneMargin}" Opacity="0" TextAlignment="Right" Visibility="Collapsed" VerticalAlignment="Bottom">

                                    <TextBlock.RenderTransform>

                                        <TranslateTransform/>

                                    </TextBlock.RenderTransform>

                                </TextBlock>

                            </Border>

                            <Border x:Name="MainBorder" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Margin="{StaticResource PhoneTouchTargetOverhang}" Grid.Row="1">

                                <TextBlock x:Name="PlaceholderTextElement" Foreground="{StaticResource PhoneTextBoxReadOnlyBrush}" HorizontalAlignment="Left" Padding="{TemplateBinding Padding}" Text="{TemplateBinding PlaceholderText}" VerticalAlignment="Center" Margin="40,2,0,2"/>

                            </Border>

                            <Border x:Name="ReadonlyBorder" BorderBrush="{StaticResource PhoneDisabledBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="Transparent" Margin="{StaticResource PhoneTouchTargetOverhang}" Grid.Row="1" Visibility="Collapsed"/>

                            <Border BorderBrush="Transparent" BorderThickness="{TemplateBinding BorderThickness}" Background="Transparent" Margin="{StaticResource PhoneTouchTargetOverhang}" Grid.Row="1">

                                <StackPanel Orientation="Horizontal">

                                    <Image Source="{TemplateBinding TextHeadImage}" Width="{TemplateBinding TextHeadImageWidth}" Height="{TemplateBinding TextHeadImageWidth}" HorizontalAlignment="Left" Margin="12,2,1,2"/>

                                    <ContentControl x:Name="ContentElement" BorderThickness="0" CacheMode="BitmapCache" HorizontalContentAlignment="Stretch" Padding="{TemplateBinding Padding}" VerticalContentAlignment="Stretch" VerticalAlignment="Center"/>

                                </StackPanel>

                            </Border>

                            <toolkitPrimitives:TiltUserControl HorizontalAlignment="Right" Margin="0,0,-12,0" Grid.Row="1" VerticalAlignment="Bottom">

                                <Border x:Name="ActionIconBorder" Background="Transparent" Height="72" Width="96">

                                    <Image x:Name="ActionIcon" HorizontalAlignment="Right" Height="26" Margin="0,0,36,0" Source="{TemplateBinding ActionIcon}"/>

                                </Border>

                            </toolkitPrimitives:TiltUserControl>

                            <TextBlock x:Name="MeasurementTextBlock" FontWeight="{TemplateBinding FontWeight}" FontStyle="{TemplateBinding FontStyle}" FontStretch="{TemplateBinding FontStretch}" FontSize="{TemplateBinding FontSize}" FontFamily="{TemplateBinding FontFamily}" IsHitTestVisible="False" Margin="8" Opacity="0" Grid.Row="1" TextAlignment="{TemplateBinding TextAlignment}" TextWrapping="{TemplateBinding TextWrapping}" Text="{TemplateBinding Text}"/>

                        </Grid>

                    </ControlTemplate>

                </Setter.Value>

            </Setter>

        </Style>

UI部局xaml代码如下：

<Grid x:Name="ContentPanel"

            Margin="0,162,24,19"

            Grid.RowSpan="2">

            <ExtentCtrs:ExtentPhoneTextBox  Margin="12,10,12,0"

                TextWrapping="Wrap"

                VerticalAlignment="Top"

                PlaceholderText="QQ号码/手机/邮箱"

                Height="80"

                Background="White" TextHeadImage="/Assets/QqAccount.WVGA.png" Style="{StaticResource ExtentPhoneTextBoxStyle}" TextHeadImageHeight="22" TextHeadImageWidth="24" />

            <ExtentCtrs:ExtentPhoneTextBox  Margin="12,107,12,0"

                TextWrapping="Wrap"

                VerticalAlignment="Top"

                PlaceholderText="点击输入QQ密码"

                Height="80"

                Background="White" Style="{StaticResource ExtentPhoneTextBoxStyle}" TextHeadImage="/Assets/Password.WVGA.png" TextHeadImageHeight="22" TextHeadImageWidth="24" />

            <toolkitPrimitives:PhonePasswordBoxCheckBox Content="记住密码"

                HorizontalAlignment="Left"

                Margin="12,195,0,0"

                VerticalAlignment="Top"

                HorizontalContentAlignment="Left" />

            <toolkitPrimitives:PhonePasswordBoxCheckBox Content="隐身登录"

                HorizontalAlignment="Left"

                Margin="224,195,0,0"

                VerticalAlignment="Top" />

            <toolkitPrimitives:PhonePasswordBoxCheckBox Content="静音登录"

                HorizontalAlignment="Left"

                Margin="12,272,0,0"

                VerticalAlignment="Top" />

            <HyperlinkButton Content="注册帐号"

                HorizontalAlignment="Left"

                Margin="12,349,0,0"

                VerticalAlignment="Top"

                HorizontalContentAlignment="Left" />

            <HyperlinkButton Content="找回密码"

                HorizontalAlignment="Left"

                Margin="12,385,0,0"

                VerticalAlignment="Top"

                HorizontalContentAlignment="Left" />

        </Grid>

运行效果如下：

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