Intersoft Community - MVVM

Write my own MVVM based mobile services

hongliyu2002 — Wed, 13 Aug 2014 02:37:47 GMT

Most of third party mobile cloud platforms provide lots of powerful services, such as Storage, Push Notification, Audio/Video Encoding, LBS, Social Share, Analysis, Feed Back etc.. As you know, they usually provide iOS & Android SDKs, sometimes javascript SDK. My question is

How can we write our C# code to wrap these iOS/Android class libraries, and integrate with Crosslight MVVM pattern, such as write our own Mobile Service (only invoked in ViewModel layer), just like Crosslight mobile service did? Can you give us any ideas or samples?

[VIDEO] Understanding MVVM Pattern in Crosslight

martin@intersoftpt.com — Mon, 09 Dec 2013 03:51:51 GMT

Dear valued customers,

We have recently added a new tutorial video which in general shows how the MVVM pattern works in Crosslight apps development. You will learn how Crosslight leverages the MVVM concept in order to produce cross-platform projects with a single shared application layer. By the end of this video, you will be able to grasp the MVVM pattern in general as well as getting the right mindset when building apps using Crosslight. Watch the tutorial video in here.

Thank you.

Regards,
Martin Lie
Account Representative

Duplicate function for MVVM data application

mg@hsig.ch — Thu, 13 Oct 2011 16:24:16 GMT

I use the ClientUI MVVM data application (WCF RIA SP1) Template.
I would like to integrate a duplicating function. That is, that I would like to copy the selected row and insert it as a duplicate. All column values should be copied except the primary key (GUID). This is to be regenerated by the application.

I have now created a new command (DuplicateRowCommand) in the class EditableGridViewModelBase. I've bound the command to a UXButton.

public EditableGridViewModelBase() : base()

{

// Batch update is not supported in WCF RIA Services. this.IsBatchUpdate = false; this.AutoEditOperation = false; ... this.ValidateRowCommand = new DelegateCommand(ExecuteValidateRow); this.DuplicateRowCommand = new DelegateCommand(ExecuteDuplicateRow);

}

private void ExecuteDuplicateRow(object parameter)

{

this.EditableProductsSource.Insert(this.SelectedItem); if (!this.IsBatchUpdate) this.SaveChanges(); else this.HasChanges = true;

}

How / where do I change the primary key? I have problems, because it is a generic class. Should I override ExecuteDuplicateRow in each ViewModel?
How do to I best this?

A simpler sample is to initialize default values:

How can I add default values? How do I get the "product" object?

((parameter.GetType())(parameter).ProductName = "New Product" does not work...

private void ExecutePrepareNewRow(object parameter)

{

// It's possible to initialize the new row with default values

// Example:

// product.ProductName = "New Product";

this.NewItem = this.EditableProductsSource.Create() as T;

this.EditableProductsSource.Insert(this.NewItem);

}

Thanks for help!

Michael

Cannot Create an Instance of ContactsListViewModel

MikeS — Wed, 13 Apr 2011 18:46:03 GMT

I'm working through the Walkthrough: Create Your First ClientUI Application using MVVM Pattern

1.) I'm a dumb newb but only the videos (not the written material) show how to resolve references etc.

2.) No matter how many times I copy, or cut and paste the code I am ending up with a Cannot Create an instance of "ContactsListViewModel" error.

3.) I tried the forums but there does not seem to be any ability to search the forums for text (vis a vis scrolling through every post)

4.) Your Live Chat help system launches a window that advises you to wait before disconnecting after about 5 mins.

5.) Calling your support number gives me a receptionist who transfers my call to a scratchy connection (overseas??) that rings then gives a busy signal and then disconnects the call.

Using DataPresenter along with ClientUI MVVM framework

jeejee — Fri, 16 Jul 2010 23:47:58 GMT

Hi.

Is there an example where the DataPresenter is used inside the ClientUIBusinessApplication using a MVVM class to supply it the data.

If there is please could you point me to it.

If not is there any documentation on DataPresenter that is usable. The Demo site seems to be down at the moment.

I am looking to use The DataPresentationManager (and List/Grid Presenter) within the ClientUI application bound to a ViewModel. There seems to be some problem whereby I cannot successfuly bind the DataPresenter to the viewmodel (it keeps saying that it is Loading... but does not actually show any data. When the same viewmodel is bound to the ListBox it shows the data.

Thanks

Jeejee

Using ClientUI with IdeaBlade Devforce 2010

jeejee — Sat, 10 Jul 2010 01:33:39 GMT

Hi,

I would like to know if it would be possible to use ClientUI with IdeaBlade Devforce 2010 (or more specifically a ModelView class built using it)?

Can we assume that the in-built datasources are not the only ones that need to be used with the UI controls

Regards,

Jeejee

Parent Child Sample using MVVM

jeejee — Thu, 08 Jul 2010 10:46:40 GMT

Hi,

I am evaluating ClientUI and so far things are looking quite good.

Are there going to be additional samples provided with the RTM. I would particularily like to see some samples around Parent/Child tables eg. Orders and Order Details

Thanks

Jeejee

Create Your First MVVM Business Project in 5 Minutes

technical@intersoftpt.com — Sat, 03 Jul 2010 02:11:13 GMT

Watch how you can get started with your immersive business application in less than 5 minutes. It shows how ClientUI enables a true rapid Silverlight application development – adding new pages, adding new navigation buttons, run it and everything will just work – effortlessly.