Databases
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PO
 

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    <p>At the risk of sounding controversial...</p> <p>I think this is one example where the View really does need a bit of a code "boost", and the 'no code-behind' guideline can be put to one side - as long as you remember to keep your concerns separated.</p> <p>I have, in the past, dynamically created DataGrid controls by grabbing the relevant data from the ViewModel, and writing a 'BuildDataGrid' method, similar to Partial's answer, in the code-behind. I believe this is justified, because the code was purely concerned with supplementing the View, and I did not mix concerns by having it implement business rules - it just put the columns together, and created the column Bindings, as appropriate.</p> <p>But if it is more important to keep code-behind clean, then I would recommend your original thought of creating a User Control and using DP's to 'sub-class' the control.</p>
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    1. COI guess this is the only way, I'll keep the question opened for a while, maybe someone will come up with something, otherwise accept this. Just a sidenote: The grid is capable of generating extra columns automatically (AutoGenerateColumns property). But that wouldn't work or lists of course. The question is, would the whole binding thing work with annonymous classes? Or better - is it using reflection to generate the extra columns? I could create a class on the fly for the data, but that may be even worse it terms of maintainability and readability...
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    2. COI know it's not ideal... M-V-VM has grown so substantially since this control was originally authored that I'm sure there will be a version at some point in the future that exposes Columns as a DP. Until then I guess we have to choose the most pragmatic solution.... cheers,
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    3. COI know this is old, but I have noticed that, depending on the OS (and perhaps whether .Net 4.5 is installed or not, even when targetting .Net 4.0), setting AutoGenerateColumns=true does in fact use reflection with Windows 7. Thus, you can return an IEnumerable<Object> (or dynamic) (which List<Object> impliments, by the way) and have DataGrid generate the columns, even from an anonymous type. However, if you expect this to run on XP, then you will need to, in some way, right your own code to generate the columns dynamically.
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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