Error on IDictionary<int, IList>

[jr]

Hi,

I need a Dictionary where the key would be an int and the value would be a list of strings.

I'm using IDictionary<int, IList<string>> or IDictionary<int, IList>.

But I get an error:

Error    8    OpenAccess Error: Telerik.OpenAccess: Updating SQL schema failed. No RelationalTypeMapping found for class 'System.Collections.IList' used by field '<value>'. Type is interface. 

I tried to use List instead of IList, but I get another error saying that List is not supported and that I should use IList.

Any tips to resolve this problem or any differente approach to do the same thing?

Thanks

João

[Damyan Bogoev]

Hi jr,

Unfortunately you cannot use an IList or List as a value type for IDictionary fields. Such fields are not supported. I would suggest you to use an instance of the following class instead of a Dictionary:

public class Data
{
 private int id;
 public int Id
 {
  get { return id; }
  set { id = value; }
 }
 private IList<string> dataList = new List<String>();
 public IList<string> DataList
 {
  get { return dataList; }
  set { dataList = value; }
 }
}

During the Forward Mapping process you should mark the Data class as persistent.
Hope that helps.

All the best,
Damyan Bogoev
the Telerik team

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