Silverlight 4 用户控件未出现

发布于 2024-12-12 08:56:34 字数 1178 浏览 0 评论 0 原文

我是 SL 的新手，一定错过了一些非常基本的东西。

我创建了一个非常简单的用户控件，如下所示：-

<UserControl x:Class="Company.UI.Common.Controls.TestControl"
    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"
    mc:Ignorable="d"
    d:DesignHeight="300" d:DesignWidth="400">

    <Grid x:Name="LayoutRoot" Background="Yellow" Width="100" Height="20">
        <TextBlock Text="foo"></TextBlock>
    </Grid>
</UserControl>

然后在我看来，我按如下方式引用它：-

xmlns:medControls="clr-namespace:Company.UI.Common.Controls;assembly=Company.UI.Common"

然后将其包含在 UI 中，如下所示：-

<medControls:TestControl Width="100" Height="20" Visibility="Visible" />

但是，当我运行应用程序时，什么也没有出现，只是一个 100x20 像素的空白空间控件应该在哪里。我使用过 Silverlight Spy，它显示了存在的控件，以及所有正确的详细信息 - 类型、程序集、可见性等。我已在用户控件的构造函数中放置了一个断点，并且可以确认正在调用 InitializeComponent()。

任何有关正在发生的事情的建议将不胜感激，因为我正在为一件应该非常简单的事情而抓狂！

提前致谢安迪

原文

I'm new to SL and must be missing something really fundamental here.

I have created a very simple user control like so:-

<UserControl x:Class="Company.UI.Common.Controls.TestControl"
    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"
    mc:Ignorable="d"
    d:DesignHeight="300" d:DesignWidth="400">

    <Grid x:Name="LayoutRoot" Background="Yellow" Width="100" Height="20">
        <TextBlock Text="foo"></TextBlock>
    </Grid>
</UserControl>

Then in my view I'm referencing it as follows:-

xmlns:medControls="clr-namespace:Company.UI.Common.Controls;assembly=Company.UI.Common"

Then including it in the UI like this:-

<medControls:TestControl Width="100" Height="20" Visibility="Visible" />

However nothing appears when I run the app, just an empty space 100x20 pixels where the control should be. I've used Silverlight Spy and it shows the control being present, with all the correct details - type, assembly, visibility, etc.
I have put a breakpoint in the user control's constructor, and can confirm that InitializeComponent() is being called.

Any suggestions as to what is happening would be greatly appreciated, as I'm tearing my hair out over what should be a very simple thing to do!

Thanks in advance
Andy