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POWPF binding to another property's binding in a style
 

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    <p>I'm not sure the best way to ask this question (sorry for the ambiguous question title), but essentially I'd like to set the MaxLength property on a TextBox using a value converter that is passed in a property from the data context, and the property on the passed-in property as the converter parameter. I'd like to do all this in a style, as opposed to on a control-by-control basis. Here's an example of doing this in a non-styled manner:</p> <pre><code>&lt;TextBox Text="{Binding MyPropertyName.TheirPropertyName}" MaxLength="{Binding MyPropertyName, Converter={StatocRespirceMyCoolConverter}, ConverterParameter=TheirPropertyName}" /&gt; </code></pre> <p>(In case you're wondering, TheirPropertyName represents a property on the type of MyPropertyName that has an attribute like [StringMaxLength(15)], which I'd be able to get to and return inside the value converter.) Additionally, is there any way to pass in the type of MyPropertyName as opposed to the instance? I only need the type to do the StringMaxLength attribute lookup.</p> <p>Anyway, how could I go about doing something like this in a style? I've gotten as far as:</p> <pre><code>&lt;Setter Property="MaxLength"&gt; &lt;Setter.Value&gt; &lt;Binding Converter="{StaticResource textFieldMaxLengthConverter}" /&gt; &lt;/Setter.Value&gt; &lt;/Setter&gt; </code></pre> <p>But that passes the overall datacontext in to the value converter, as opposed to the MyPropertyName object, and I really have no clue if I can have it parse the MyPropertyName.TheirPropertyName part of the binding to pass TheirPropertyName in on the ConverterParameter attribute of the binding.</p> <p>Any guidance would be really appreciated!</p>
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