Collectives™ on Stack Overflow

Find centralized, trusted content and collaborate around the technologies you use most.

Teams

Q&A for work

Connect and share knowledge within a single location that is structured and easy to search.

I am using a Library with a class that have the following constructors:

public JobDataMap(IDictionary<string, object> map);
public JobDataMap(IDictionary map);
I created an instance of JobDataMap:
var jdm = new JobDataMap(new Dictionary<String, Object> { 
  { "Manager", myObject } 
But I am getting the compilation error:
The call is ambiguous between the following methods or properties:
'JobDataMap.JobDataMap(IDictionary<string, object>)' and 'JobDataMap.JobDataMap(IDictionary)' 
How to solve this?
You can enforce the type being passed like so:
var jdm = new JobDataMap((IDictionary<string, object>)new Dictionary<String, Object> { 
  { "Manager", myObject } 
Or you could make a factory method and make the non-generic constructor (I'm assuming you use this less) private:
public class JobDataMap
    public JobDataMap(IDictionary<string, object> map)
    private JobDataMap(IDictionary map)
    public static JobDataMap FromNonGenericMap(IDictionary map)
        return new JobDataMap(map);
Usage:
var jdm = JobDataMap.FromNonGenericMap(someNonGenericDictionary);
and then you can use the regular generic one like so:
var jdm = new JobDataMap(new Dictionary<String, Object> { 
  { "Manager", myObject } 
You can cast it to the type for the constructor you want it to use:
var jdm = new JobDataMap((IDictionary<string, object>) new Dictionary<String, Object> {
    { "Manager", new object() }
This design does seem a bit dubious, however...
        
Thanks for contributing an answer to Stack Overflow!
Please be sure to answer the question. Provide details and share your research!
But avoid …
Asking for help, clarification, or responding to other answers.
Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.