CODEWITHSUNDEEP
uwpuwp-xaml
Jammer
Jammer

Reputation: 440

UWP: Compile error when using x:DataType property on DataTemplate

I'm creating a new UWP Blank App project targeting the Anniversary Build of Windows. Here's the markup of my only page (which is named MainPage.xaml by the default template):

<Page
x:Class="App1.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:App1"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d">

<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
    <Grid.Resources>
        <DataTemplate x:Key="MyDataTemplate" x:DataType="local:BindyThing">

        </DataTemplate>
    </Grid.Resources>
</Grid>

The class BindyThing is declared like this in a CS file:

namespace App1
{
     public class BindyThing
     {
     }
}

As you can see from the markup above, I'm attempting to create a DataTemplate to render BindyThing. However, when I compile, I get the following error:

The XAML Binary Format (XBF) generator reported syntax error '0x09C4' : Property Not Found

This error disappears when I comment out the declaration of the DataTemplate. Does anyone have any insight as to why I'm getting this? All help appreciated. Thank you!

Upvotes: 13

Views: 4712

Answers (3)

beatnikthedan
beatnikthedan

Reputation: 221

I had the same problem except my datatemplate wasn't blank. I found out you can't have the data template blank and if you try to use x:Type in a resource dictionary that is merged in app.xaml it won't work either. this link explains how to x:bind in resource dictionaries instead:Resource dictionaries with {x:Bind}

Upvotes: 2

dotNET
dotNET

Reputation: 35380

(My comment in Sergei's answer proved handy for a few people, so I'm promoting it to an answer to make it more visible)

I was facing the same issue and my DataTemplate was not blank. It was defined in App.xaml though. Simply moving it to the place where it was being referenced and removing x:Key attribute made it work fine.

Upvotes: 2

Sergei Temkin
Sergei Temkin

Reputation: 126

It looks like you can't have a blank DataTemplate element in your xaml. I was able to get your example to work with the below:

<DataTemplate x:Key="MyDataTemplate" x:DataType="local:BindyThing">
    <TextBlock></TextBlock>
</DataTemplate>

Upvotes: 11

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