Picker error "Specified cast is not valid" when getting the SelectedItem value in Xamarin Forms

Issue

I have a picker, already set with the bindings, but when I'm trying to copy the selecteditem value to a variable but shows error "System.InvalidCastException: 'Specified cast is not valid'. The info contained in the selected item is actually correct, this is my code:

IDPisteroMainPage = Convert.ToInt32(pck_Pisteros.SelectedItem);

also tried this (didn't work either, different error thrown tho):

IDPisteroMainPage = Convert.ToInt32(pck_Pisteros.SelectedItem as Pisteros);

Pisteros being the model in used.

Error:

Also I have the binding for the same object on SelectedIndex, but this one still returns the index and not the PisteroID which is what I need, but if I use the following:

IDPisteroMainPage = Convert.ToInt32(pck_Pisteros.SelectedIndex);

the value does gets copied to the variable without issues

Solution

It's hard to tell what you actually want or the types involved. However, it could be you are looking for.

IDPisteroMainPage = Convert.ToInt32(((Pisteros)pck_Pisteros.SelectedItem).PisteroId);

// or slightly more fault tolerant if you expect a null 
if(pck_Pisteros.SelectedItem is Pisteros pisteros)
   IDPisteroMainPage = pisteros.PisteroId;
else
   // handle null (if need be)
   

// or if PisteroId is an int and SelectedItem is never null
IDPisteroMainPage = ((Pisteros)pck_Pisteros.SelectedItem).PisteroId

Answered By - TheGeneral