Question

由于WPF中的GroupBox控件只接受一个WPF控件作为内容，我必须首先将所有属性包装到DockPanel控件中。

我使用以下xsl样式表将我的代码转换为之后显示的XAML代码段样式表（摘录）：

  <!-- Default attribute processing -->
  <xsl:template name="process-element">
    <xsl:param name="attr" />

    <!-- Process all attributes and elements which are going to be
             transformed to attributes -->
    <xsl:apply-templates select="@*|*" mode="to-attr" />
    <!-- Add extra attribute -->
    <xsl:if test="$attr">
      <xsl:attribute name="{substring-after($attr, '|')}">
        <xsl:value-of select="@*[local-name() = substring-before($attr, '|')]" />
      </xsl:attribute>
    </xsl:if>
    <!-- Process children elements -->
    <xsl:apply-templates select="*" />
  </xsl:template>

  <!-- Map GroupBoxWrapper into GroupBox -->
  <xsl:template match="GroupBoxWrapper">
    <xsl:element name="GroupBox">
      <!-- TODO: Add DockPanel Element and move "cursor" one level upwards -->
      <!--<xsl:element name="DockPanel">-->
        <xsl:call-template name="process-element">
          <xsl:with-param name="attr"/>
        </xsl:call-template>
      <!--</xsl:element>-->
    </xsl:element>
  </xsl:template>

这是生成的代码XAML：

<GroupBox Name="groupbox1" DockPanel.Dock="Left, Right, Top, Bottom" Width="1092" Height="125" Background="Transparent" Foreground="#0046D5" Visibility="visible" BorderThickness="1,1,1,1" FontFamily="Tahoma" FontSize="9" TabIndex="0" IsTabStop="False">
  <DockPanel Name="panel4" DockPanel.Dock="Top" Width="1078" Height="25" Background="Transparent" Visibility="visible">
    <Label Name="lblName" DockPanel.Dock="Left" Width="100" Height="25" Background="Transparent" Foreground="Black" Visibility="visible" BorderThickness="1,1,1,1" FontFamily="Tahoma" FontSize="9" TabIndex="0" IsTabStop="False" Content="Name:" />
    <TextBox Name="txtName" DockPanel.Dock="Left" Width="100" Height="25" Background="Azure" Foreground="Black" Visibility="visible" BorderThickness="1,1,1,1" FontFamily="Tahoma" FontSize="9" TabIndex="1" IsTabStop="True" Text="" />
  </DockPanel>
  <DockPanel Name="panel5" DockPanel.Dock="Top" Width="1078" Height="25" Background="Transparent" Visibility="visible">
    <Label Name="lblLastName" DockPanel.Dock="Left" Width="100" Height="25" Background="Transparent" Foreground="Black" Visibility="visible" BorderThickness="1,1,1,1" FontFamily="Tahoma" FontSize="9" TabIndex="0" IsTabStop="False" Content="Lastname:" />
    <TextBox Name="txtLastName" DockPanel.Dock="Left" Width="100" Height="25" Background="Azure" Foreground="Black" Visibility="visible" BorderThickness="1,1,1,1" FontFamily="Tahoma" FontSize="9" TabIndex="1" IsTabStop="True" Text="" />
  </DockPanel>
  <DockPanel Name="panel6" DockPanel.Dock="Top" Width="1078" Height="25" Background="Transparent" Visibility="visible">
    <Label Name="label4" DockPanel.Dock="Left" Width="100" Height="25" Background="Transparent" Foreground="Black" Visibility="visible" BorderThickness="1,1,1,1" FontFamily="Tahoma" FontSize="9" TabIndex="0" IsTabStop="False" Content="Age:" />
    <TextBox Name="textbox3" DockPanel.Dock="Left" Width="100" Height="25" Background="Azure" Foreground="Black" Visibility="visible" BorderThickness="1,1,1,1" FontFamily="Tahoma" FontSize="9" TabIndex="1" IsTabStop="True" Text="" />
  </DockPanel>
  <DockPanel Name="panel14" DockPanel.Dock="Top" Width="1078" Height="25" Background="Transparent" Visibility="visible">
    <Label Name="label9" DockPanel.Dock="Left" Width="100" Height="25" Background="Transparent" Foreground="Black" Visibility="visible" BorderThickness="1,1,1,1" FontFamily="Tahoma" FontSize="9" TabIndex="0" IsTabStop="False" Content="Gender:" />
    <RadioButton Name="radiobutton1" DockPanel.Dock="Left" Width="75" Height="25" Background="Transparent" Foreground="Black" Visibility="visible" BorderThickness="1,1,1,1" FontFamily="Tahoma" FontSize="9" TabIndex="1" IsTabStop="True" Content="Male" />
    <RadioButton Name="radiobutton2" DockPanel.Dock="Left" Width="75" Height="25" Background="Transparent" Foreground="Black" Visibility="visible" BorderThickness="1,1,1,1" FontFamily="Tahoma" FontSize="9" TabIndex="2" IsTabStop="True" Content="Female" />
  </DockPanel>
</GroupBox>

问题是GroupBox现在包含四个在WPF中无法实现的元素。这就是我需要将这些控件包装到单个DockPanel中的原因。

当我取消注释<xsl:element name="DockPanel">行时，XAML代码如下所示：

<GroupBox> <!-- attributes should appear on this line -->
      <DockPanel Name="groupbox1" DockPanel.Dock="Left, Right, Top, Bottom" Width="1092" Height="125" Background="Transparent" Foreground="#0046D5" Visibility="visible" BorderThickness="1,1,1,1" FontFamily="Tahoma" FontSize="9" TabIndex="0" IsTabStop="False">
        <DockPanel Name="panel4" DockPanel.Dock="Top" Width="1078" Height="25" Background="Transparent" Visibility="visible">
          <Label Name="lblName" DockPanel.Dock="Left" Width="100" Height="25" Background="Transparent" Foreground="Black" Visibility="visible" BorderThickness="1,1,1,1" FontFamily="Tahoma" FontSize="9" TabIndex="0" IsTabStop="False" Content="Name:" />
          <TextBox Name="txtName" DockPanel.Dock="Left" Width="100" Height="25" Background="Azure" Foreground="Black" Visibility="visible" BorderThickness="1,1,1,1" FontFamily="Tahoma" FontSize="9" TabIndex="1" IsTabStop="True" Text="" />
        </DockPanel>
        <DockPanel Name="panel5" DockPanel.Dock="Top" Width="1078" Height="25" Background="Transparent" Visibility="visible">
          <Label Name="lblLastName" DockPanel.Dock="Left" Width="100" Height="25" Background="Transparent" Foreground="Black" Visibility="visible" BorderThickness="1,1,1,1" FontFamily="Tahoma" FontSize="9" TabIndex="0" IsTabStop="False" Content="Lastname:" />
          <TextBox Name="txtLastName" DockPanel.Dock="Left" Width="100" Height="25" Background="Azure" Foreground="Black" Visibility="visible" BorderThickness="1,1,1,1" FontFamily="Tahoma" FontSize="9" TabIndex="1" IsTabStop="True" Text="" />
        </DockPanel>
        <DockPanel Name="panel6" DockPanel.Dock="Top" Width="1078" Height="25" Background="Transparent" Visibility="visible">
          <Label Name="label4" DockPanel.Dock="Left" Width="100" Height="25" Background="Transparent" Foreground="Black" Visibility="visible" BorderThickness="1,1,1,1" FontFamily="Tahoma" FontSize="9" TabIndex="0" IsTabStop="False" Content="Age:" />
          <TextBox Name="textbox3" DockPanel.Dock="Left" Width="100" Height="25" Background="Azure" Foreground="Black" Visibility="visible" BorderThickness="1,1,1,1" FontFamily="Tahoma" FontSize="9" TabIndex="1" IsTabStop="True" Text="" />
        </DockPanel>
        <DockPanel Name="panel14" DockPanel.Dock="Top" Width="1078" Height="25" Background="Transparent" Visibility="visible">
          <Label Name="label9" DockPanel.Dock="Left" Width="100" Height="25" Background="Transparent" Foreground="Black" Visibility="visible" BorderThickness="1,1,1,1" FontFamily="Tahoma" FontSize="9" TabIndex="0" IsTabStop="False" Content="Gender:" />
          <RadioButton Name="radiobutton1" DockPanel.Dock="Left" Width="75" Height="25" Background="Transparent" Foreground="Black" Visibility="visible" BorderThickness="1,1,1,1" FontFamily="Tahoma" FontSize="9" TabIndex="1" IsTabStop="True" Content="Male" />
          <RadioButton Name="radiobutton2" DockPanel.Dock="Left" Width="75" Height="25" Background="Transparent" Foreground="Black" Visibility="visible" BorderThickness="1,1,1,1" FontFamily="Tahoma" FontSize="9" TabIndex="2" IsTabStop="True" Content="Female" />
        </DockPanel>
      </DockPanel>
    </GroupBox>

所有属性，其中GroupBox的意图位于嵌套内部GroupBox元素的DockPanel元素中。

我需要弄清楚如何创建DockPanel元素（检查）并向上移动到GroupBox元素以调用process-element模板。

有什么想法吗？

Answer 1

<强>问题

流程元素模板旨在执行以下操作：

将当前元素的当前属性和子元素转换为新元素的属性。
使用attr参数
正常处理孩子。

您目前遇到的问题是因为您要在步骤1中附加属性（＆lt; xsl：apply-templates select =“@ | ”mode =“to-attr”＆gt;）到新创建的元素DockPanel（＆lt; xsl：element name =“DockPanel”＆gt;）。这就是您的属性被复制到其他元素中的原因。

<强>解

不要依赖模板process-elements来进行这种转换。最初，当某个点（XML to XAML transformation using XSLT 1.0 | Exclude specific transformations for some controls）的所有元素都遵循不同的逻辑来保存重复代码时，就会编写该模板。因此，如果您要实现的目标不遵循先前的模式，则必须修改流程模板或为GroupBoxWrapper元素编写不同的模板。

以下模板将修复您要实现的目标。

  <!-- Map GroupBoxWrapper into GroupBox -->
  <xsl:template match="GroupBoxWrapper">
    <xsl:element name="GroupBox">
      <!-- Process attributes -->
      <xsl:apply-templates select="@*|*" mode="to-attr" />
      <!-- Create new DockPanel to wrap children -->
      <xsl:element name="DockPanel">
        <!-- Process GroupBoxWrapper chldren -->
        <xsl:apply-templates select="*" />
      </xsl:element>
    </xsl:element>
  </xsl:template>

PS。我认为你应该首先理解我们[stackoverflow上的人们]发布的代码，然后再实际使用它，这样你就不必每次出现问题时都依赖我们。

XSL转换| XML到XAML |向嵌套元素添加层次结构级别

1 个答案: