Avatar of quentinA
quentinAFlag for United Kingdom of Great Britain and Northern Ireland asked on

mvvm resuse a user control with different data

I'm new to mvvm in wpf.
I have a user-control (a view) that essentially is a listbox.
The ViewModel shows a wrapped collection of data from the model.
The data is a filtered subset from the ObjectContext of an entity framework model.

Is there any way that I can have a generic ViewModel that can be re-used to bind to copies of the user-control, so that each user control has a different set of items to display?
.NET ProgrammingC#

Avatar of undefined
Last Comment
quentinA

8/22/2022 - Mon
ASKER CERTIFIED SOLUTION
ToddBeaulieu

Log in or sign up to see answer
Become an EE member today7-DAY FREE TRIAL
Members can start a 7-Day Free trial then enjoy unlimited access to the platform
Sign up - Free for 7 days
or
Learn why we charge membership fees
We get it - no one likes a content blocker. Take one extra minute and find out why we block content.
See how we're fighting big data
Not exactly the question you had in mind?
Sign up for an EE membership and get your own personalized solution. With an EE membership, you can ask unlimited troubleshooting, research, or opinion questions.
ask a question
ASKER
quentinA

Thanks Todd,
I'm not sure if this is allowed in the MVVM paradigm... but is there some way of setting (in the [xaml]view) a property on the ViewModel (which is bound to the view) which, when set, thereby filters the data exposed by the ViewModel to the view.

This presumably would allow me to have several instances of a generic ViewModel that each display different data to similar instances of a generic view (user controls); those instances (views) differing only in what has been set for the filtering property on the bound ViewModel?
ToddBeaulieu

First, OOP (inheritance) is a basic .net concept. You most certainly can create a base vm and extend/override it's members in mvvm.

You can also expose a property just as you described.

There are quite a few ways to skin this.
ToddBeaulieu

what happened?
Your help has saved me hundreds of hours of internet surfing.
fblack61
ASKER
quentinA

I tried to accept your solution, but got an error, how do I award the points to you?
ASKER
quentinA

I tried to accept the solution by ToddBeauLieu but must have made a mistake; please can I try again