MVC :: ModelBinder Not Binding For Sub-object?
Jun 7, 2010
I have a class:
[Code]....
Then another class, for ProjectCustomer:
[Code]....
My view is the same as any standard auto-created view, with properties set using the likes of:
[Code]....
In my edit page, for editing the fields for these classes, everything works fine, the model binder works, and validation works. In my create page, only the Project class properties get set and the ProjectCustomer properties remain null. I've tried everything I can think of from manually instantiating a new ProjectCustomer before calling TryUpdate model, to letting MVC handle the lot by including the class as a paramater for the action. The values are being passed just fine, as I've tried a FormCollection too and in the debugger the FormCollection contains all the correct fields (i.e. Customer.Name etc.) yet no matter what the ModelBinder just wont attach the inputs to the Customer object inside the Project object, but will only not do this on the Create action, and does it fine for the Edit action even though the code is almost entirely identical.
why the ModelBinder is just refusing to bind for the Create action and no other? What steps can I perform to debug the ModelBinder when it's not working properly like this?
I've tried every combination of things I can think of under the sun, and simply can't understand why it works for one action, but not for another, especially when the code I've used is fairly basic. I'll note that these classes were intended as MetaData classes hence their pointless seeming simplicity, but as part of trying to track down the problem I've stripped them to the bare bones setup above, and still no luck.
Under what circumstances does the ModelBinder decide not to fill the properties of a sub-object?
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[Code]....
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[Code]....
[Code]....
[Code]....
[Code]....
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