Access CommandParameter Fields (c# Xamarin)

Question

I have a list of products, sitting in a ListView. Each product has details. If I press a button in one of the products within the ListView, the event handler is bound to the product and all its details. Lets say for arguments sake that the button fires the following event handler:

public async void OnClickViewImageCarousel(object sender, EventArgs e)
        {
            var selectedItemDetails = ((Button)sender).CommandParameter; 
        }

During debugging, the selectedItemDetails shows the following locals:

How do you access the fields? As in how could I do something like:

var FieldIWantToUse = selectedItemsDetails.ShortDescription

Thanks guys.

CrazyProg · Accepted Answer · 2018-10-22 12:07:55Z

3

var FieldIWantToUse = ((RackProduct)selectedItemsDetails.selectedItems).ShortDescription;

Or

var FieldIWantToUse = selectedItemsDetails.selectedItems.ShortDescription;

Is it working?

edited Oct 22, 2018 at 12:07

answered Oct 22, 2018 at 11:59

CrazyProg

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Comments

Miamy · Accepted Answer · 2018-10-22 12:18:35Z

2

You should use direct casting to the items type from which your listView consists of. A little example (for popup menu but the idea the same):

XAML:

<MenuItem ...Clicked="ButtonClicked"  CommandParameter="{Binding .}" />

Code:

    private void ButtonClicked(object sender, EventArgs args)
    {
        var yourVar = (YourType)((MenuItem)sender).CommandParameter;
        ...
    }

edited Oct 22, 2018 at 12:18

answered Oct 22, 2018 at 12:09

Miamy

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