我遇到了一个问题,在运行时和 Expression Blend 中可见,其中我的布局网格中的文本块(不是文本框、按钮或自定义控件)不断将它们自己推到它们的单元格之外,使它们不可见。如果我在 Blend 中触摸它们的任何属性(例如递增然后递减其中一个边距),它们在 Blend 中变得可见,但在运行时仍然不可见。下面是一个屏幕截图,显示了 Blend 中的现象。您会看到设计指南指出了控件应该在的位置,但它的实际位置在画布顶部上方。
控件在 Blend http://tinyurl.com/y9ttscf 中偏移
更新:下面我发布了 XAML,删除了 VisualStateGroups(因为它们给 XAML 增加了相当大的复杂性,并且没有它们,问题就显现出来了)。上面选择的控件是下面的“loginTextBlock”。
<navigation:Page
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:navigation="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Navigation"
mc:Ignorable="d" xmlns:UserControls="clr-namespace:MyClient.UserControls" xmlns:MyClient_Controls="clr-namespace:MyClient.Controls;assembly=MyClient.Controls" xmlns:controlsToolkit="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Toolkit" x:Class="MyClient.Views.Login"
d:DesignWidth="640" d:DesignHeight="480"
Title="Login"
>
<Grid x:Name="LayoutRoot">
<Grid HorizontalAlignment="Center" Margin="0,16,0,0" VerticalAlignment="Top">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
<TextBlock x:Name="loginTextBlock" HorizontalAlignment="Center" Style="{StaticResource HeaderTextStyle}" VerticalAlignment="Center" Text="Login" Grid.ColumnSpan="2" Margin="0,8"/>
<TextBlock x:Name="usernameTextBlock" HorizontalAlignment="Right" VerticalAlignment="Center" Grid.Row="1" Text="User name:" TextWrapping="Wrap"/>
<TextBox x:Name="usernameTextBox" HorizontalAlignment="Left" Margin="8,8,0,8" VerticalAlignment="Center" Width="175" Grid.Column="1" Grid.Row="1" TextWrapping="Wrap" TabIndex="0" FontSize="16" Height="28" Padding="2"/>
<TextBlock x:Name="passwordTextBlock" HorizontalAlignment="Right" VerticalAlignment="Center" Grid.Row="2" Text="Password:" TextWrapping="Wrap"/>
<PasswordBox x:Name="passwordBox" HorizontalAlignment="Left" Margin="8,8,0,8" VerticalAlignment="Center" Width="175" Grid.Column="1" Grid.Row="2" TabIndex="1" FontSize="16" Height="28" Padding="2"/>
<Button x:Name="okButton" Height="32" HorizontalAlignment="Center" Margin="0,16,0,0" VerticalAlignment="Top" Width="96" Content="OK" Grid.Row="3" TabIndex="2" Click="okButton_Click" Grid.ColumnSpan="2"/>
<UserControls:StatusTextBlockControl x:Name="verifyingStatusTextBlockControl" Margin="8,16,8,8" VerticalAlignment="Center" Grid.Row="4" HorizontalAlignment="Center" Grid.ColumnSpan="2" Text="Verifying credentials..."/>
<MyClient_Controls:LoginAttemptsCounter x:Name="loginAttemptsCounter" HorizontalAlignment="Center" Margin="8" VerticalAlignment="Center" Grid.ColumnSpan="2" Grid.Row="5" FirstFailureMessage="Please re-enter your Windows credentials.
After 2 more failed attempts, your account will be locked." Height="30"/>
</Grid>
</Grid>
</navigation:Page>