CODEWITHSUNDEEP
silverlightwindows-phone-7
prak
prak

Reputation: 115

"invalid xaml" error in the designer

I am trying to use a listbox to display a custom UserControl. It had been working just fine until recently i started recieving an "invalid xaml" error message and am no long able to refresh the Design View.

The error does not keep the app from compiling and running.

I have tried everything i can think of. I created a test control and a test page from scratch and only get the error when i put the control in the data template. I can put any standard control into the data template without error. only errors on a custom usercontrol.

here is the page:

<phone:PhoneApplicationPage
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"
xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:WP7ListBoxSelectedItemStyle"
xmlns:my="clr-namespace:testproject.Controls"
xmlns:toolkit="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone.Controls.Toolkit"
x:Class="WP7ListBoxSelectedItemStyle.TestPage"
mc:Ignorable="d" d:DesignWidth="480" d:DesignHeight="768"
FontFamily="{StaticResource PhoneFontFamilyNormal}"
FontSize="{StaticResource PhoneFontSizeNormal}"
Foreground="{StaticResource PhoneForegroundBrush}"
SupportedOrientations="Portrait" Orientation="Portrait"
shell:SystemTray.IsVisible="True">

<Grid x:Name="LayoutRoot" Background="Transparent">
    <Grid x:Name="ContentPanel" Grid.Row="1" Margin="8,17,16,-17">
        <ListBox  Name="lb_test"
                        Margin="0,0,0,0">
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <Grid>
                        <my:Test1></my:Test1>
                    </Grid>
                </DataTemplate>
            </ListBox.ItemTemplate>
        </ListBox>
    </Grid>
</Grid>

and here is the usercontrol (no added code in the codebehind):

<UserControl x:Class="testproject.Controls.Test1"
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"
FontFamily="{StaticResource PhoneFontFamilyNormal}"
FontSize="{StaticResource PhoneFontSizeNormal}"
Foreground="{StaticResource PhoneForegroundBrush}"
Height="80" Width="80">

<Grid x:Name="LayoutRoot">

</Grid>
</UserControl>

Upvotes: 1

Views: 2637

Answers (2)

prak
prak

Reputation: 115

Ok, I figured it out based on this post

http://forums.silverlight.net/post/618518.aspx

I cannot believe I added a space to my assembly name. ARG!

Upvotes: 1

Chui Tey
Chui Tey

Reputation: 5554

  1. Sometimes this is triggered by missing resources.
  2. There is also a missing </UserControl> tag.

try:

<UserControl x:Class="testproject.Controls.Test1"
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"
Height="80" Width="80">

  <Grid x:Name="LayoutRoot">

  </Grid>
</UserControl>

Upvotes: 0

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