WCF : Why I can't send a List of objects to my webservice

Question

I build a List of objects: List<Mandat>

And I call my webservice Like these:

ServiceGestionClient svc = new ServiceGestionClient();
svc.setNewMandatImage(listMandat);

In my Webservice I have these:

public void setNewMandatImage(List<Mandat> mi)

But i have These error:

Unable to convert from list<Mandat> to mandat[]

Why does he try to convert as an array?

Answer 1

The reason is that WCF serializes the universal list into an array to send over the.network. The configuration just tells svcutil to create a proxy and convert them back to a common list for convenience.

solution:

Set in the Add Service Reference tool:

Finally, apply this setting to generate a proxy class.

Feel free to let me know if the problem persists.