I ve 陷入一个奇怪的问题,一些XAML配置在Windows Telephone银灯上。 基本上,我会利用我自己的子弹点,在信.的电网中制造一些文字箱。 问题是,第一个子弹点(见下文)没有明显的理由,有扩展的文本箱。 它看不出案文。 见第一点点以下的间隔。 你也注意到,这削减了第三颗子弹的某些案文:

INCORRECT LAYOUT:

此处为<代码><Canvas/>所有文本和子弹点的标的:

  <Canvas Canvas.Left="20.21" Canvas.Top="66" Width="775.96" Height="224.17">
    <Grid Canvas.Top="3.6" Canvas.Left="7.2" Width="762.06" Height="216.97">
      <Grid VerticalAlignment="Top">
        <Grid.RowDefinitions>
          <RowDefinition Height="Auto" />
          <RowDefinition Height="Auto" />
          <RowDefinition Height="Auto" />
          <RowDefinition Height="Auto" />
        </Grid.RowDefinitions>
        <Grid Grid.Row="0">
          <TextBlock LineHeight="21.6" LineStackingStrategy="BlockLineHeight" TextWrapping="Wrap" TextAlignment="Left" Foreground="#FFFFFF" FontFamily="Segoe WP" FontSize="18">
            <Run Text="The Ribbon bar in PowerPoint 2007 and 2010 replaces the menu bar in previous versions. It is designed to provide quick access to the most common features used in PowerPoint." />
          </TextBlock>
        </Grid>
        <Grid Grid.Row="1" Margin="0 0 0 6">
          <Grid.ColumnDefinitions>
            <ColumnDefinition Width="0" />
            <ColumnDefinition Width="22.5" />
            <ColumnDefinition />
          </Grid.ColumnDefinitions>
          <Grid Grid.Column="1">
            <Grid.RowDefinitions>
              <RowDefinition Height="Auto" />
              <RowDefinition Height="Auto" />
            </Grid.RowDefinitions>
            <TextBlock Grid.Row="0" LineHeight="15.12" Foreground="#D80073" FontFamily="Wingdings" FontSize="12.6" LineStackingStrategy="BlockLineHeight">
              <Run Text="" />
            </TextBlock>
          </Grid>
          <TextBlock Grid.Column="2" LineHeight="19.2" LineStackingStrategy="BlockLineHeight" TextWrapping="Wrap" TextAlignment="Left" Foreground="#FFFFFF" FontFamily="Segoe WP">
            <Run Text="The " FontSize="16" /><Run Text="R" FontSize="16" /><Run Text="ibbon is " FontSize="16" /><Run Text="made up of various tabs that provide a fast way of performing tasks. For example, if you need to insert a picture, you click the " FontSize="16" /><Run Text="Insert" FontSize="16" FontWeight="Bold" /><Run Text=" tab and then picture. If you need to create an animation, you click on the " FontSize="16" /><Run Text="Animations" FontSize="16" FontWeight="Bold" /><Run Text=" tab and then, with any object selected, simply select the animation you prefer." FontSize="16" />
          </TextBlock>
        </Grid>
        <Grid Grid.Row="2" Margin="0 0 0 6">
          <Grid.ColumnDefinitions>
            <ColumnDefinition Width="0" />
            <ColumnDefinition Width="22.5" />
            <ColumnDefinition />
          </Grid.ColumnDefinitions>
          <Grid Grid.Column="1">
            <Grid.RowDefinitions>
              <RowDefinition Height="Auto" />
              <RowDefinition Height="Auto" />
            </Grid.RowDefinitions>
            <TextBlock Grid.Row="0" LineHeight="15.12" Foreground="#D80073" FontFamily="Wingdings" FontSize="12.6" LineStackingStrategy="BlockLineHeight">
              <Run Text="" />
            </TextBlock>
          </Grid>
          <TextBlock Grid.Column="2" LineHeight="19.2" LineStackingStrategy="BlockLineHeight" TextWrapping="Wrap" TextAlignment="Left" Foreground="#FFFFFF" FontFamily="Segoe WP">
            <Run Text="Some " FontSize="16" /><Run Text="R" FontSize="16" /><Run Text="ibbon " FontSize="16" /><Run Text="bars are contextual – meaning they only appear when you’ve selected the corresponding object. The Drawing (shape), Picture (image) and Table (table) tabs become available and highlighted when you’ve selected those objects." FontSize="16" />
          </TextBlock>
        </Grid>
        <Grid Grid.Row="3" Margin="0 0 0 6">
          <Grid.ColumnDefinitions>
            <ColumnDefinition Width="0" />
            <ColumnDefinition Width="22.5" />
            <ColumnDefinition />
          </Grid.ColumnDefinitions>
          <Grid Grid.Column="1">
            <Grid.RowDefinitions>
              <RowDefinition Height="Auto" />
              <RowDefinition Height="Auto" />
            </Grid.RowDefinitions>
            <TextBlock Grid.Row="0" LineHeight="15.12" Foreground="#D80073" FontFamily="Wingdings" FontSize="12.6" LineStackingStrategy="BlockLineHeight">
              <Run Text="" />
            </TextBlock>
          </Grid>
          <TextBlock Grid.Column="2" LineHeight="19.2" LineStackingStrategy="BlockLineHeight" TextWrapping="Wrap" TextAlignment="Left" Foreground="#FFFFFF" FontFamily="Segoe WP">
            <Run Text="Also" FontSize="16" /><Run Text=", when your PowerPoint application is resized, the Ribbon will minimize or display buttons. This means that the command is still available, but it may look and act slightly different" FontSize="16" /><Run Text="." FontSize="16" />
          </TextBlock>
        </Grid>
      </Grid>
    </Grid>
  </Canvas>

XAML网页(UserControl)和图片的全文载于DropBox。

我找到了两种手法确定这一点:

1. From the first bullet text, remove any three letters. This causes the bottom spacing to be removed. This is a bit weird though as the text in line #2 of the first bullet extends to the width of the grid and in the 3rd one doesn t come as close, so it doesn t make sense why this would "fix" the issue.
2. Put a <RowDefinition Height="*" /> on the second row in the first grid instead of <RowDefinition Height="Auto" />. This is unpredictable though - if I set it to * for other rowes, it mis-sizes again. I m doing this coding from automation, so I won t be able to predict a problematic row unless I know exactly what the problem may be in advance in order to set it as * instead of Auto.

如果加以正确表述(采用上文第2号):

CORRECT LAYOUT

是否有任何人知道,在这种“打破文字总结无所作为”和如何确定/预测这种说法究竟有什么错误?