In my app i have created 6 different pages with a final sub total on each page. Now i want to bring all those totals to the end page 'Total Page'. I use this code :
`App1.Signage.AnotherPagePayLoad passedSignParameter = e.Parameter as App1.Signage.AnotherPagePayLoad;
double signEC = passedSignParameter.signEC;
double signCost = passedSignParameter.signCost;
txtSignageEC.Text = signEC.ToString("F2");
txtSignageCost.Text = signCost.ToString("c");`
When i want to call signEC/signCost from the Signage page it gives me the error: System.NullReferenceException occured but was not handled in user code. Object reference not set to an instance of an object.
I have been stuck on this for quite some time does anyone have any ideas? Thanks