ServicesUtilities.cs source code in C# .NET

                        Code:
                         / DotNET / DotNET / 8.0 / untmp / Orcas / RTM / ndp / fx / src / xsp / System / Web / Extensions / Script / Services / ServicesUtilities.cs / 1 / ServicesUtilities.cs
                        
                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

using System.Collections; 
using System.Collections.Generic; 
using System.IO;
using System.Text; 
using System.Xml;
using System.Xml.Serialization;

namespace System.Web.Script.Services { 
    internal static class ServicesUtilities {
 
        internal static string GetClientTypeName(string name) { 
            // e.g. MyNS.MySubNS.MyWebService OR var MyWebService
            return name.Replace('+', '_'); 
        }

        internal static string GetClientTypeFromServerType(WebServiceData webServiceData, Type type) {
            // For intellisense purposes, returns a best estimate of what the appropriate client-side type is for a given server type. 
            // Takes generated client proxies and enum proxies into consideration.
            // The rest is a best guess. 
            // If all else fails we use "", to indicate "any" client side type. "Object" is not the same as any type on the client since 
            // string, for example, is not considered an object. "Object" is equiv to a .net dictionary.
 


            if (webServiceData.ClientTypeNameDictionary.ContainsKey(type)) {
                // if it exists in the client type dictionary, it will have a proxy generated for it 
                //get the client based on type.FullName for ASMX, and schema qualified name and namespace for WCF
                return webServiceData.ClientTypeNameDictionary[type]; 
            } 

            if (type.IsEnum) { 
                // there will be a proxy for this enum
                return GetClientTypeName(type.FullName);
            }
 
            // there is no client proxy for it, so it either maps to a built-in js type or it could be "anything"
 
            // take care of the most common types 
            if (type == typeof(string) || type == typeof(char)) {
                return "String"; 
            }
            else if (type.IsPrimitive) {
                // The primitive types are Boolean, Byte, SByte, Int16, UInt16, Int32, UInt32, Int64 (long), UInt64, IntPtr, Char, Double, and Single (float).
                if (type == typeof(bool)) { 
                    // bool is the only primitive we shouldnt treat as a number
                    return "Boolean"; 
                } 
                else {
                    // takes care of all ints, float, double, but not decimal since it isnt a primitive 
                    // we also consider byte, sbyte, and intptr to be numbers
                    return "Number";
                }
            } 

            if (type.IsValueType) { 
                if (type == typeof(DateTime)) { 
                    return "Date";
                } 
                else if (type == typeof(Guid)) {
                    return "String";
                }
                else if (type == typeof(Decimal)) { 
                    return "Number";
                } 
            } 

            if (typeof(IDictionary).IsAssignableFrom(type)) { 
                return "Object";
            }
            // might still be IDictionary
            if (type.IsGenericType) { 
                Type gtd = type;
                if (!type.IsGenericTypeDefinition) { 
                    gtd = type.GetGenericTypeDefinition(); 
                }
                if (gtd == typeof(IDictionary<,>)) { 
                    return "Object";
                }
            }
 
            if (type.IsArray || typeof(IEnumerable).IsAssignableFrom(type)) {
                return "Array"; 
            } 

            // dont know what it is (e.g., TimeSpan), or it is type Object, so allow any client type. 
            return "";
        }

        internal static Type UnwrapNullableType(Type type) { 
            // check for nullable and pull out 
            if (type.IsGenericType && !type.IsGenericTypeDefinition) { 
                Type genericTypeDefinition = type.GetGenericTypeDefinition(); 
                if (genericTypeDefinition == typeof(Nullable<>)) {
                    return type.GetGenericArguments()[0]; 
                }
            }

            return type; 
        }
 
 
        // Serialize an object to an XML string
        internal static string XmlSerializeObjectToString(object obj) { 
            //
            XmlSerializer xs = new XmlSerializer(obj.GetType());
            MemoryStream ms = new MemoryStream();
            using (XmlTextWriter writer = new XmlTextWriter(ms, Encoding.UTF8)) { 
                xs.Serialize(writer, obj);
                ms.Position = 0; 
                using (StreamReader reader = new StreamReader(ms)) { 
                    return reader.ReadToEnd();
                } 
            }
        }
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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ServicesUtilities.cs source code in C# .NET

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