Question

Currently my model has ten properties which for our purposes here I’ll call AnnualizedRate1, AnnualizedRate2, …, AnnualizedRate10 which are revealed to views in the view model via ten properties Rate1, Rate2, …, Rate10. One of my views shows these values in a DataGrid. This is awfully repetitious and a pain to adapt to changing requirements. There has to be a better way than the following.

Model (MyModel):

public decimal AnnualizedRate1 { get { return this.AnnualizedRate(1); } }
public decimal AnnualizedRate2 { get { return this.AnnualizedRate(2); } }
...
public decimal AnnualizedRate10 { get { return this.AnnualizedRate(10); } }

where MyModel.AnnualizedRate is

public decimal AnnualizedRate(int i);

View Model (MyViewModel):

public decimal Rate1 { get { return myModel.AnnualizedRate1; } }
public decimal Rate2 { get { return myModel.AnnualizedRate2; } }
...
public decimal Rate10 { get { return myModel.AnnualizedRate10; } }

View (MyView):

xmlns:dg="http://schemas.microsoft.com/wpf/2008/toolkit"
...
    <dg:DataGrid>
        <dg:DataGrid.Columns>
            <dg:DataGridTextColumn
                Header="Rate1" 
                Binding="{Binding Rate1, StringFormat=P}"
                IsReadOnly="True"/>
            <dg:DataGridTextColumn
                Header="Rate2" 
                Binding="{Binding Rate2, StringFormat=P}"
                IsReadOnly="True"/>
            ...
            <dg:DataGridTextColumn
                Header="Rate10" 
                Binding="{Binding Rate10, StringFormat=P}"
                IsReadOnly="True"/>
        </dg:DataGrid.Columns>
    </dg:DataGrid>

Does anyone have any ideas?

Answer 1

I would use and ObservableCollection to store the data and bind the grid to.