Passing Data Between Viewmodels MvvmCross

Question

I am working on Xamarin Android Application and I am using MvvmCross.I am not able to pass and retrieve data between Viewmodels. What is the solution ?

Answer 1

That depends on what data you want to retrieve. For objects look at this answer from Stuart.

And when you want to send/retrieve non-object data, you can do that with the build in viewmodel-navigation like following example:

// Navigate to viewmodel with parameters
var param = new Dictionary<string, string>
{
    {"key1", "value for key 1"
    {"key2", 12}
};

ShowViewModel<MyViewModel>(param);

And then retrieve the Parameters in your MyViewModel:

protected override void InitFromBundle(IMvxBundle parameters)
{
    if (parameters.Data.ContainsKey("key1"))
    {
        var mykey1value = parameters.Data["key1"]
    }

    // And so on

    base.InitFromBundle(parameters);
}