No overload for method takes 2 arguments

Question

I've created a dll .

The dll had a method,which is having 4 optional parameters and 2 required parameters.

When i try to call the method in VS2010, it's working well and good even though i supply only 2 required parameters.

But when i tried to call the method in VS2008, it is showing error message 'No overload for method takes 2 arguments'.

Do i need to pass the 4 optional parameters values as null inorder to get rid of this ?

Please help

Thanks,

"Visual C# 2010 **introduces** named and optional argument(...)" from http://msdn.microsoft.com/en-us/library/dd264739.aspx — Andre Calil, Aug 30 '12 at 12:34
@L.B that's not true. I have a C# .NET Framework 3.5 assembly declaring optional parameters just fine in VS 2010 — xr280xr, Oct 29 '12 at 20:17

score 3 · Accepted Answer · edited May 23 '17 at 12:04

3

Optional parameters are new to Visual Studio 2010 so aren't supported in 2008. You need to explictly pass arguments for the optional parameters.

edited May 23 '17 at 12:04

Community

answered Aug 30 '12 at 12:36

Nick Jones

score 0 · Answer 2 · answered Aug 30 '12 at 12:35

0

Optional parameters is a C# 4.0 feature so you won't be able to use it on C# 3.5. Send explicity the default value for those.

answered Aug 30 '12 at 12:35

Claudio Redi

yes optional parameter was introduced in c# 4.0, you should target the .net fx 4.0 somehow in visual studio 2008 – S3ddi9 Aug 30 '12 at 12:41
Optional parameters are a VS 2010 feature not a C# 4.0 feature. Therefore @SéddikLaraba 's answer wouldn't work either. – xr280xr Oct 29 '12 at 20:20

2 Answers2