Hi all,
I am coding an MVVM C# WPF software with 2 models. I am using Caliburn.Micro FYI.
The parent Model :
namespace Expense_Manager.Models
{
public class Receipt: PropertyChangedBase
{
public Receipt()
{
Items = new List- ();
}
public List- Items{ get; set; }
private double _total;
public double Total
{
get { return _total; }
set
{
_total= value;
NotifyOfPropertyChange(() => Total);
}
}
}
}
The second model:
namespace Expense_Manager.Models
{
public class Item: PropertyChangedBase
{
public Item()
{ }
private double _amount;
public double Amount
{
get { return _amount; }
set
{
_amount= value;
NotifyOfPropertyChange(() => Amount
}
}
}
}
I have simplified the models for the purpose of posting this question.
So my question is: How can I have the Total amount in the parent model calculate itself either by:
- adding each value of the Item model everytime it is added to teh parent's items list
- calculating the sum of each item value once the full list of items is entered in the items list (this would mean that if an item is added at a later date, it would not recalculate itself which I am not too happy about so 1 would prefer to do option 1 above)
Manikandan MurugesanPosted Jul 5, 2017, 11:31 AM
TabControls and the like I tend to have the child view models within a collection of theMasterViewModel//When your ID gets set or your child view models get created then you can set properties on them