Datamember- Datatypes

Resmi Satish

12y1.7k

Hi

In our WCF service, there is a datamember of type object. Due to this datamember ,we are not able to access the method. ie the method is displaying with error while we run the service.

We have declared the datamember as

[DataMember]
    public object Value
    {
        get { return this.value; }
        set { this.value = value; }
}

When we comment out the above code, the method will start displaying without error.

Please refer the attached screen shot.

Any help from your side is appreciated.

5 Replies

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Resmi Satish12y ago
We have created proxy object using Svcutil.exe and the issue got resolved.

However the datacontract is having a datamember of type dataset and a data member of type
generic list. When I am consuming the service, the service is throwing the error as

Error 1 Cannot implicitly convert type 'System.Collections.Generic.List' to 'SampleList[]'
I have used the below command for creating proxy.
svcutil.exe http://localhost:55986/Service.svc /collectionType:System.Collections.Generic.List`1

I have declare as follows
[DataContract]
public class SQLCommand
{
    string storedProcedureName = string.Empty;
    List parameters;
    List primaryKeys;
    DataSet resultDataSet;

    [DataMember]
    public DataSet ResultDataSet
    {
        get { return resultDataSet; }
        set { resultDataSet = value; }
    }

    [DataMember]
    public List PrimaryKeys
    {
        get { return primaryKeys; }
        set { primaryKeys = value; }
    }

    [DataMember]
    public string StoredProcedureName
    {
        get { return storedProcedureName; }
        set { storedProcedureName = value; }
    }

    [DataMember]
    public List Parameters
    {
        get { return parameters; }
        set { parameters = value; }
    }
}

Please guide me how to use dataset as a datamember in WCF.
Gopi Chand12y ago
Hey, Where is the attachment of snapshot..?? Just attach it again so that by looking that we can give the better and appropriate solutions. Thank u..:)
Anupam Singh12y ago
I believe(but not sure) its not possible to use Object type in [DataMember] .
However we do use complex type but we define serialization and deserilization for those.

read this

hope will help
Resmi Satish12y ago
Thanks for your reply. However we cannot modify the service as it has been used on client side and we are providing support for the same.

Can you please confirm me whether we can use object type or not
Anupam Singh12y ago
Use primitive type instead of object.