Datatype not understood by webservice

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Hi,

I have created a web service interface with method like,

[OperationContract]

       
        string Log(string COMMENTS, string product, Dictionary<string, List<string>> analysisComp);

The issue here is if i try to consume this webservice and try to pass the values to Dictionary <string , List<string>> variable it gives me the following error:

cannot convert from 'System.Collections.Generic.Dictionary<string, System.Collections.Generic.List<string>>' to ArrayOfKeyValueOfstringArrayOfstringty7Ep6D1KeyValueOfstringArrayOfstringty7Ep6D1[]

CAn you please advise if i cant use this datatype of Dictionary in my webservice method what would be the best alternate for it..

Thanks,.

What I have tried:

Create Web service but datatype of Dictionary is not accepting.

Posted 26-Sep-18 22:28pm

Mohammad Azeem

Updated 3-Oct-18 3:05am

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Alek Massey 27-Sep-18 11:43am

Can you show the line of code (in context) that is giving the error?

Mohammad Azeem 2-Oct-18 3:24am

Hi Alek,

Let me share more details:

I created two C# solutions 1 from where i am hosting the Web service and the other one is consuming it, for the first solution i write the code to accept the parameters as follows:

[OperationContract]

string LogSS(string priority, string Reason, string COMMENTS, Dictionary<string, List<string>> analysisComp);
mp);
While at consumption side, i added a web reference with the succeeding mapping:

Then i clicked Add web reference button to add the reference to the hosted service.

The code i write to access the webservice is as follows:

string priority = "3";
string Reason = "Reason";
string COMMENTS = "COMMENTS";
Dictionary<string, List<string>> analysisComp = new Dictionary<string, List<string>>()
{
["CHEM"] = new List<string> { "Water", "Liquid" },
["Basse"] = new List<string> { "Acid", "Calcium", "Magnesium" }

};
string ID = consume.LogSS(priority, Reason, COMMENTS, analysisComp);
Console.WriteLine(ID, true);

Console.ReadLine();
While executing it gives the following error:

Error CS1503 Argument 13: cannot convert from 'System.Collections.Generic.Dictionary<string, System.Collections.Generic.List<string>>' to 'WebSeriveConsumeWCF.Service.ArrayOfKeyValueOfstringArrayOfstringty7Ep6D1KeyValueOfstringArrayOfstringty7Ep6D1[]' WebSeriveConsumeWCF
Please Advise Thanks.

Note: without Dictionary <string>... parameter the web service is working absolutely fine.

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#realJSOP · Answer 1 · 2018-10-03T03:05:00

Solution 1

Try using this to initialize tyour dictionary.

C#

Dictionary<string, List<string>> analysisComp = new Dictionary<string, List<string>>();
analysisComp.Add("CHEM", new List<string>() { "Water", "Liquid" });
analysisComp.Add("Basse", new List<string>() { "Acid", "Calcium", "Magnesium" });

Posted 3-Oct-18 3:05am

#realJSOP

Updated 3-Oct-18 3:29am

v2