Question

How can I show all the methods that are available in my WCF in a dropdown. I need to show only those methods that are exposed to the client. I have the following code working, but it displays much more methods than expected. Seems it displays all.

MethodInfo[] methods = typeof(IntlService.ClientDataServiceClient).GetMethods();

//// sort methods by name
Array.Sort(methods,
        delegate(MethodInfo methods1, MethodInfo methods2)
        { return methods1.Name.CompareTo(methods2.Name); });

foreach (var method in methods)
{
    string methodName = method.Name;
    ddlMethods.Items.Add(methodName);
}

How can I restrict the display to show only the ones that I defined

Answer 1

If you’re looking to get only methods defined by your class, in this case, IntlService.ClientDataServiceClient, then alter your call to GetMethods() like this:

MethodInfo[] methods = typeof(IntlService.ClientDataServiceClient).GetMethods(BindingFlags.DeclaredOnly);

If you’re looking to get only methods that are declared as service methods, then you’ll need to examine the attributes on the methods:

MethodInfo[] methods = typeof(IntlService.ClientDataServiceClient).GetMethods(BindingFlags.DeclaredOnly);

// sort here...

foreach( var method in methods )
{
    if( method.GetCustomAttributes(typeof(System.ServiceModel.OperationContractAttribute), true).Length == 0 )
        continue;

    string methodName = method.Name;
    ddlMethods.Items.Add(methodName);
}