Label不是有效的XAML元素?

时间:2012-10-31 17:39:35

标签: wpf xaml windows-8 visual-studio-2012 winrt-xaml

我今天早上再次尝试运行我的C#/ XAML应用程序(此处提到的早期问题:Why did my XAML suddenly crash?)。

这一次,我至少得到了一些特定的错误消息,即“成员”ShowGridLines“无法识别或无法访问。”和“Windows应用程序项目中不支持标签。”

这是完整的XAML:

<Page
    x:Class="TimeAndSpaceLines.View.SectionN"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:TimeAndSpaceLines.View"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    <Grid MinHeight="600" ShowGridLines="True" Background="{StaticResource ApplicationPageBackgroundThemeBrush}">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="320"></ColumnDefinition>
                <ColumnDefinition MaxWidth="800"></ColumnDefinition>
            </Grid.ColumnDefinitions>
            <Grid.RowDefinitions>
<RowDefinition/>                    
<RowDefinition/>                    
<RowDefinition/>                    
<RowDefinition/>                    
<RowDefinition/>                    
<RowDefinition/>                    
<RowDefinition/>                    
<RowDefinition/>                    
<RowDefinition/>                    
<RowDefinition/>                    
<RowDefinition/>                    
<RowDefinition/>                    

            </Grid.RowDefinitions>
            <StackPanel Orientation="Horizontal">
                <Label MinWidth="40" Content="From"></Label>
                <TextBox x:Name="textBoxFromDate" MinWidth="120">
                </TextBox>
            </StackPanel>
            <StackPanel Grid.Row="1" Orientation="Horizontal">
                <Label MinWidth="40">at
                </Label>
                <TextBox x:Name="textBoxFromTime" MinWidth="120" Grid.Row="1">
                </TextBox>
            </StackPanel>
            <StackPanel Grid.Row="2" Orientation="Horizontal">
                <Label MinWidth="40">To
                </Label>
                <TextBox x:Name="textBoxToDate" MinWidth="120">
                </TextBox>
            </StackPanel>
            <StackPanel Grid.Row="3" Orientation="Horizontal">
                <Label MinWidth="40">at
                </Label>
                <TextBox x:Name="textBoxToTime" MinWidth="120" Grid.Row="1">
                </TextBox>
            </StackPanel>
            <Button
         x:Name="buttonFindLocForDateRange"
         MaxWidth="200"
         Grid.Row="4"
         Content="Find Location for Date Range">
            </Button>
            <Label
         x:Name="labelPerson1_Red"
         Grid.Row="5"
         Content="(Person1_Red)"
         Foreground="Red">
            </Label>
            <Label
         x:Name="labelPerson2_Orange"
         Grid.Row="6"
         Content="(Person2_Orange)"
         Foreground="Orange">
            </Label>
            <Label
         x:Name="labelPerson3_Yellow"
         Grid.Row="7"
         Content="(Person3_Yellow)"
         Foreground="Yellow">
            </Label>
            <Label
         x:Name="labelPerson4_Green"
         Grid.Row="8"
         Content="(Person4_Green)"
         Foreground="Green">
            </Label>
            <Label
         x:Name="labelPerson5_Blue"
         Grid.Row="9"
         Content="(Person5_Blue)"
         Foreground="Blue">
            </Label>
            <Label
         x:Name="labelPerson6_Indigo"
         Grid.Row="10"
         Content="(Person6_Indigo)"
         Foreground="Indigo">
            </Label>
            <Label
         x:Name="labelPerson7_Violet"
         Grid.Row="11"
         Content="(Person7_Violet)"
         Foreground="Violet">
            </Label>
            <StackPanel Grid.Column="1" Orientation="Horizontal">
                <Image>
                </Image>
                <Label>Prev
                </Label>
                <Label x:Name="labelSectionN" Content="(Section N)">
                </Label>
                <Label>Next
                </Label>
            </StackPanel>
            <!-- Add a Bing Map component: Grid.Column="1" Grid.Row="1" Grid.RowCount="11" -->
        </Grid>
</Page>

注意:唯一的区别是XAML的初始和名称空间部分就是这样:

<Page
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

...并且在Grid属性中没有Background =“{StaticResource ApplicationPageBackgroundThemeBrush}”,这个XAML在Kaxaml中显示它应该(现在非常难看,但这是预期的)。

1 个答案:

答案 0 :(得分:2)

您已经编写了一些仅支持WPF应用程序而不支持WinRT的XAML WinRT不包含Label控件,并且Grid没有ShowGridLines属性,这就是您的代码无法正常工作的原因。

WPF和WinRT是两种不同的技术 - 两者都碰巧使用XAML来创建用户界面 - 但是你不应该期望用WPF编写的XAML可以在WinRT中工作,反之亦然。