CODEWITHSUNDEEP
c#wpfwinforms
user3102858
user3102858

Reputation: 128

how to save and load an object

Currently, I am using WPF. I have two windows I-e window1 and window2. window1 has a button to navigate to window2; window2 has also a button to go back to window1. window2 has many controls also user-controls. The case is whenever I navigate window1 to window2, I have to create new object of window2 due to some reasons. I know singleton pattern but cant apply here.

Now, on unload event of window2 I saved window2's object in a static class(I save "this" to static class). when user will again navigate here, I want to load saved object rather than constructing new object.

Is there any method to load saved object in current object that's going to construct ? I-e somewhere in constructor or load I may load saved object?

Thanks in advance

Upvotes: 0

Views: 108

Answers (1)

Sinatr
Sinatr

Reputation: 21989

As it is tagged wpf, you definitely should take a look at mvvm. Instead of passing data between forms you will have two ViewModels (for each form) to hold all associated with UI data and some Models to hold the rest. And those view models (and models) will persist between forms closing/opening, means no need to pass anything or save/load.

If you need to actually save data (to example, different sets of states or for the data to survive exit/start application), then have a look at serialization. My favorite is XmlSerializer/XmlDeserializer, as it's easy to control, easy to change (edit data) and easy to support versioning. There are dozens of tutorials around, simply search for "c# serialization" with optional words "xml", or "binary" or even "protobuf".

Upvotes: 2

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