运行silverlight程序时错误!
请帮忙,谢谢
<UserControl x:Class="jt.SlAppDemo.Page"
xmlns="http://schemas.microsoft.com/client/2007"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Width="400" Height="800">
<Canvas x:Name="LayoutRoot" Background="White">
<TextBox x:Name="text1" Canvas.Left="50" Canvas.Top="200" Width="200"></TextBox>
<Button x:Name="btn1" Canvas.Left="50" Canvas.Top="240" Content="click me" Click="btn1_Click" Background="PaleGreen">
<Button.ToolTip>
<ToolTip Background="BlueViolet" Content="ha ha" Foreground="Chocolate" Width="100" />
</Button.ToolTip>
</Button>
<ToggleButton Content="ToggleButton" FontSize="16" Background="Red" IsThreeState="True" Canvas.Left="50" Canvas.Top="280"></ToggleButton>
<WatermarkedTextBox FontSize="16" Background="Coral" Canvas.Left="50" Canvas.Top="320" Watermark="pls enter password" Width="200"></WatermarkedTextBox>
<WatermarkedTextBox Canvas.Left="50" Canvas.Top="360" Width="200">
<WatermarkedTextBox.Watermark><Image Source="admin.png" HorizontalAlignment="Left"></Image></WatermarkedTextBox.Watermark>
</WatermarkedTextBox>
<ScrollViewer Background="Coral" Canvas.Left="50" Canvas.Top="400" Width="200" Height="50" HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Visible">
<TextBox Text="阿四大发,阿四大发, 进口货洒的发,洒的发,lkoa" FontSize="16"></TextBox>
<!--修改text内容后(删掉了逗号)刷新页面,提示silverlight非法操作,请关闭浏览器。之后预览*testPage.html就提示“InitializeError- Invalid or malformed application: Check manifest”。重新打开了浏览器firefox和vs,问题仍在-->
</ScrollViewer>
</Canvas>
</UserControl>