Solved

C# - Lamda with tempate

Posted on 2013-06-25
2
261 Views
Last Modified: 2013-06-26
IDictionary<string, string> map =
                            str.Split('|').ToDictionary(s => s.Split('@')[0], s => s.Split('@')[1]);

The above statement works. But I would like to change it to template for IDictionary

public class CSVMap <TKey, TValue>
{
       public IDictionary<TKey, TValue>  func (string str)
      {
IDictionary<TKey, TValue> map =  str.Split('|').ToDictionary
                                           (ConvertValue<TKey>(s => s.Split('@')[0]),
                                            ConvertValue<TValue>(s => s.Split('@')[1]));

         }
        public static T ConvertValue<T>(string value)
        {
            return (T)Convert.ChangeType(value, typeof(T));
        }        
        and ConvertValue to cast the splitted strings to the type of TKey and TValue.

But I got below errors for the ConvertValue portions
error CS1660: Cannot convert lambda expression to type 'string' because it is not a delegate type
error CS1660: Cannot convert lambda expression to type 'string' because it is not a delegate type

I am not sure what the error mean or how to fix such problem.  Any help will be appreciated. Thanks
0
Comment
Question by:tommym121
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 23

Accepted Solution

by:
Ioannis Paraskevopoulos earned 500 total points
ID: 39277356
Hi,

The thing you have wrong is that you have s=> in the function parameters, while you should have it outside:

IDictionary<TKey, TValue> map =  str.Split('|').ToDictionary
                                           (s => ConvertValue<TKey>(s.Split('@')[0]), 
                                           s => ConvertValue<TValue>( s.Split('@')[1]));

Open in new window


Giannis
0
 

Author Closing Comment

by:tommym121
ID: 39277496
Thanks
0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Calculating holidays and working days is a function that is often needed yet it is not one found within the Framework. This article presents one approach to building a working-day calculator for use in .NET.
Performance in games development is paramount: every microsecond counts to be able to do everything in less than 33ms (aiming at 16ms). C# foreach statement is one of the worst performance killers, and here I explain why.
How to Install VMware Tools in Red Hat Enterprise Linux 6.4 (RHEL 6.4) Step-by-Step Tutorial
This video shows how to use Hyena, from SystemTools Software, to update 100 user accounts from an external text file. View in 1080p for best video quality.

734 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question