I think you must return a serialized object (to get a JSON Object)

public static String Hello(string sequence, string codonusageId, string motifs)
{
   ....

   return new JavaScriptSerializer().Serialize(result);
}

Ok, But can i Serialize the "result" object which is of type "mgxOptimizationResult"??

//call to the webservice method

           GENEius.mgxOptimizationResult result = obj.optimizeSequence(sequence, codonusageId, motifs1);

And even if i serialize the "result", Can you please tell me how do i get the results back in my JQuery here below?

$.get("/base/BLogic/Hello/" + sequence + "/" + optimization + "/" + motifs + ".aspx",
   function (result) {

       alert("Call Succ");

       alert(result);

//Please tell me How to read/parse the json object here ??

});
   });

My "result" would look like this:

optimizedSequenceOK : Bool (type)

optimizedSequence: String (type)

codonfreqComparisons: MGXcodonfreqcomparisons[]

Where MGXcodonfreqcomparisons would incude:

codon: string

freqOptimal: double

freqBefore: double

freqAfter: double

Yes you can serialize your object mgxOptimizationResult if it look like this (but I did't test this):

[Serializable]
public class mgxOptimizationResult
{
    public Boolean optimizedSequenceOK;
    public String optimizedSequence;
    ....
}

public class MGXServiceClient
{
    public mgxOptimizationResult optimizeSequence(String sequenze, ...)
    {
              mgxOptimizationResult mgr = new mgxOptimizationResult();
              mgr.optimizedSequence = sequenze;
              ......
              return mgr;
    }
}

To get the correct json object you can try this:

$.ajax({
    type: 'POST',
    url: "/base/BLogic/Hello/" + sequence + "/" + optimization + "/" + motifs + ".aspx",
    dataType: 'json',
    contentType: 'application/x-www-form-urlencoded; charset=utf-8',
    success: function (result) {
       alert("Call Succ");
       alert(result);
    }
});

And your restExtensions.config should look like this:

<ext assembly="yourassembly" type="yourtype" alias="youralias">
  <permission method="Hello" returnXml="false" allowAll="true" />
</ext>

Yes, Calvin

"mgxOptimizationResult" object is part of teh webservices. I create a object of type "mgxOptimizationResult" and get the result of the web service method call, into this object as shown here.

mgxOptimizationResult result = obj.optimizeSequence(sequence, codonusageId, motifs);

And I'm sure "mgxOptimizationResult" class is serialized as it is part of a web service. I added the web reference to this web service and I have the below in my reference.cs class

    [System.CodeDom.Compiler.GeneratedCodeAttribute("System.Xml", "4.0.30319.1")]
    [System.SerializableAttribute()]
    [System.Diagnostics.DebuggerStepThroughAttribute()]
    [System.ComponentModel.DesignerCategoryAttribute("code")]
    [System.Xml.Serialization.XmlTypeAttribute(Namespace="http://webserviceSOAP/")]
    public partial class mgxOptimizationResult {
       
        private mgxCodonFreqComparison[] codonFreqComparisonsField;
       
        private string optimizedSequenceField;
       
        private bool optimizedSequenceOKField;
       
        /// <remarks/>
        [System.Xml.Serialization.XmlElementAttribute("codonFreqComparisons", Form=System.Xml.Schema.XmlSchemaForm.Unqualified, IsNullable=true)]
        public mgxCodonFreqComparison[] codonFreqComparisons {
            get {
                return this.codonFreqComparisonsField;
            }
            set {
                this.codonFreqComparisonsField = value;
            }
        }
       
        /// <remarks/>
        [System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified)]
        public string optimizedSequence {
            get {
                return this.optimizedSequenceField;
            }
            set {
                this.optimizedSequenceField = value;
            }
        }
       
        /// <remarks/>
        [System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified)]
        public bool optimizedSequenceOK {
            get {
                return this.optimizedSequenceOKField;
            }
            set {
                this.optimizedSequenceOKField = value;
            }
        }
    }

Anyway i will try the above steps mentioned by you and update you if any success. thanks for you reply. And I hope i could solve this problem.

I'm adding further information here for your understanding...

My "Hello" method (or) base method looks like this

namespace BLogicLibrary
{
    public class BLogic
    {

        public static string Hello(string sequence, string codonusageId, string motifs )
        {
            System.Web.Script.Serialization.JavaScriptSerializer jSerializer = new JavaScriptSerializer();
            string[] motifs1 = new string[1];
            motifs1[0] = motifs;

           //proxy object creation for the web service

            MGXServiceClient obj = new MGXServiceClient();

            //Method call and storing into the result object (mgxOptimizationResult)
            mgxOptimizationResult result = obj.optimizeSequence(sequence, codonusageId, motifs1);  
            return jSerializer.Serialize(result);
        }

}

}

The result object (mgxOptimizationResult) from the Hello method would be serialized to "json", and sent to the callback method @ Ajax. the mgxoptimization class looks like the below:

[System.CodeDom.Compiler.GeneratedCodeAttribute("System.Xml", "4.0.30319.1")]
    [System.SerializableAttribute()]
    [System.Diagnostics.DebuggerStepThroughAttribute()]
    [System.ComponentModel.DesignerCategoryAttribute("code")]
    [System.Xml.Serialization.XmlTypeAttribute(Namespace="http://webserviceSOAP/")]
    public partial class mgxOptimizationResult {
       
        private mgxCodonFreqComparison[] codonFreqComparisonsField;
       
        private string optimizedSequenceField;
       
        private bool optimizedSequenceOKField;
       
        /// <remarks/>
        [System.Xml.Serialization.XmlElementAttribute("codonFreqComparisons", Form=System.Xml.Schema.XmlSchemaForm.Unqualified, IsNullable=true)]
        public mgxCodonFreqComparison[] codonFreqComparisons {
            get {
                return this.codonFreqComparisonsField;
            }
            set {
                this.codonFreqComparisonsField = value;
            }
        }
       
        /// <remarks/>
        [System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified)]
        public string optimizedSequence {
            get {
                return this.optimizedSequenceField;
            }
            set {
                this.optimizedSequenceField = value;
            }
        }
       
        /// <remarks/>
        [System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified)]
        public bool optimizedSequenceOK {
            get {
                return this.optimizedSequenceOKField;
            }
            set {
                this.optimizedSequenceOKField = value;
            }
        }
    }

Anyway i will try the above steps mentioned by you and update you if any success. thanks for you reply. And I hope i could solve this problem.

My Ajax call looks like below:
$.ajax({
    type: 'POST',
    url: "/base/BLogic/Hello/" + sequence + "/" + optimization + "/" + motifs + ".aspx",
    dataType: 'json',
    contentType: 'application/x-www-form-urlencoded; charset=utf-8',
    success: function (result) {
       alert("Call Succ");
       alert(result);
    }
});

my restExtension file looks like below

  <ext assembly="/BLogicLibrary" type="BLogicLibrary.BLogic" alias="BLogic">
    <permission method="Hello" allowAll="true"  returnXml="false"/>
    <permission method="PersistValuesOfGeneDefinition" allowAll="true" returnXml="true" />
    <permission method="CallToGENEius" allowAll="true" returnXml="false"/>
    <permission method="matchResourceKeyWithList" allowAll="true" returnXml="false"/>
  </ext>

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