ToString(“C”) formatting fails in ASP.NET MVC Partial View in VB.NET 2013

Question

This line

@Model.CurrentPrice.ToString("C") 

works in C# 2013 , but fails in VB.NET with invalidcast exception .

The CurrentPrice property is a nullable decimal .

I've had to do this as a fix:

@CType(Model.CurrentPrice, Model.CurrentPrice.GetType()).ToString("c")

Any idea of why @Model.CurrentPrice.ToString("C") does not work in VB.NET 2013 and how to fix this instead of doing the above conversion?

Thanks, Jean

Answer 1

What are you expecting that line of code to produce if CurrentPrice is Nothing ? Unless you're 100% sure that it will always have a value, you would need to explicitly handle both cases, eg

@If(Model.CurrentPrice.HasValue,
    Model.CurrentPrice.Value.ToString("C"),
    String.Empty)

You can replace that String.Empty with something else if you want something else when there's no value.