CODEWITHSUNDEEP
c#wpfxamluser-controls
Adam S
Adam S

Reputation: 9235

Pass values between UserControls

I have a main window, which has four user controls on it. These five entities need to communicate with each other. Is there an established method for passing values and objects between UserControls?

Edit: I'm familiar with MVVM, but I am asking for solutions outside of that paradigm.

Upvotes: 1

Views: 1803

Answers (4)

bitbonk
bitbonk

Reputation: 49619

There are a lot of ways and it depends on what you actual scenario is. The most straight forward one would be to expose public properties and/or events in your UserControls. This is the preferred way if you want to get view specific data across. If your the communication is more model related you should go the route through your ViewModel (and use MVVM).

Generally I think UserControls accessing each other directly is a strong hint toward desgin smell. It is very likely that there is a better aproach for you concrete scenario (Mediator, Eventaggregator, Controller or just the parent control).

Upvotes: 2

Albin Sunnanbo
Albin Sunnanbo

Reputation: 47038

There are many ways, one is to use events. There are no "direct" methods, you need to route your values through a form or a model class.

There is an established pattern called MVVM (just google for it) that has a unified way of communicating between different contols, databases, web services, calculations etc. MVVM is not a pattern for communicating between different controls, it is a much larger pattern, but it solves that part too.

Upvotes: 0

Shekhar
Shekhar

Reputation: 11788

I think you need to decide upon domain model according to your project requirement and then create classes which represent entities in your model. Then pass objects of this entities as required.

Upvotes: 0

Pankaj Agarwal
Pankaj Agarwal

Reputation: 11311

You can communicate five entities using making delegates.

Upvotes: 0

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