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POHow do you reference a XAML DictionaryResource from an external Assembly?
 

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  1. POHow do you reference a XAML DictionaryResource from an external Assembly?
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    <p>I'm a total Nubie to the world of WPF. I'm just starting to get immersed in it.</p> <p>I've got an issue I'm trying to figure out with using ResourceDictionary and Merged Dictionaries.</p> <p>I've got WPF sample application that I've converted to a Class Library. That newly converted assembly is included/referenced in a library of user controls that I'm trying to create. That converted assembly is included a project in the solution containing my user control library (dll) project.</p> <p>I was able to convert it successfully and got rid of all the errors except for some issues with the ResourceDictionary.</p> <h2>This is what the offending XAML looks like:</h2> <pre><code>&lt;ResourceDictionary&gt; &lt;ResourceDictionary.MergedDictionaries&gt; &lt;ResourceDictionary Source="/ConvertedAppPath/Dictionaries/Brushes.xaml" /&gt; &lt;ResourceDictionary Source="/ConvertedAppPath/Dictionaries/Styles.xaml" /&gt; &lt;ResourceDictionary.MergedDictionaries&gt; &lt;/ResourceDictionary&gt; </code></pre> <p>The original WPF application had several Resource Dictionary items included in the assembly. </p> <h1>When I converted to a class library, I'm getting the following error message on resource dictionary:</h1> <p>Error 21 An error occurred while finding the resource dictionary "/ConvertedAppPath/Dictionaries/Brushes.xaml". C:\MyExplicitPath\WPFUserControls\DynamicDataChart.xaml 15 17 WPFUserControls Error 22 An error occurred while finding the resource dictionary "/ConvertedAppPath/Dictionaries/Styles.xaml". C:\MyExplicitPath\WPFUserControls\DynamicDataChart.xaml 15 17 WPFUserControls</p> <h2>So, I thought that perhaps I needed a relative path for the ResourceDictionaries.</h2> <pre><code>&lt;ResourceDictionary&gt; &lt;ResourceDictionary.MergedDictionaries&gt; &lt;ResourceDictionary Source="../ConvertedAppPath/Dictionaries/Brushes.xaml" /&gt; &lt;ResourceDictionary Source="../ConvertedAppPath/Dictionaries/Styles.xaml" /&gt; &lt;ResourceDictionary.MergedDictionaries&gt; &lt;/ResourceDictionary&gt; </code></pre> <h2>I get the following error message(s) inside the XAML editor:</h2> <p>The file "../ConvertedAppPath/Dictionaries/Brushes.xaml" is not part of the project or it's Build Action property is not set to "Resource".</p> <h2>I'd really like to understand this, so I've got a couple of questions:</h2> <p>1) How do I clean this up to get rid of the errors?</p> <p>2) Do I need to explicitly set the assembly location in "Source"?</p> <p>3) What are all the pieces of the "Source" property and what do they really mean?</p> <p>4) Why did the 2nd error message not get displayed at compile time, but is visible only in the XAML editor? </p> <p>Thanks for your response and efforts, JohnWPFNewB </p>
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