StringDictionaryCodeDomSerializer.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / Services / Monitoring / system / Diagnosticts / Design / StringDictionaryCodeDomSerializer.cs / 1 / StringDictionaryCodeDomSerializer.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

/* 
 */ 
namespace System.Diagnostics.Design {
 
    using System;
    using System.Design;
    using System.CodeDom;
    using System.Collections; 
    using System.ComponentModel;
    using System.ComponentModel.Design; 
    using System.Diagnostics; 
    using System.Reflection;
    using System.ComponentModel.Design.Serialization; 
    using System.Collections.Specialized;

    /// 
    ///  
    ///     This serializer serializes string dictionaries.
    ///  
    internal class StringDictionaryCodeDomSerializer : CodeDomSerializer { 

        ///  
        /// 
        ///     This method takes a CodeDomObject and deserializes into a real object.
        ///     We don't do anything here.
        ///  
        public override object Deserialize(IDesignerSerializationManager manager, object codeObject) {
            Debug.Fail("Don't expect this to be called."); 
            return null; 
        }
 
        /// 
        /// 
        ///     Serializes the given object into a CodeDom object.
        ///  
        public override object Serialize(IDesignerSerializationManager manager, object value) {
            object result = null; 
 
            StringDictionary dictionary = value as StringDictionary;
            if (dictionary != null) { 
                object context = manager.Context.Current;

                ExpressionContext exp = context as ExpressionContext;
                if (exp != null) { 
                    if (exp.Owner == value) {
                        context = exp.Expression; 
                    } 
                }
 
                // we can only serialize if we have a CodePropertyReferenceExpression
                CodePropertyReferenceExpression propRef = context as CodePropertyReferenceExpression;
                if (propRef != null) {
 
                    // get the object with the property we're setting
                    object targetObject = DeserializeExpression(manager, null, propRef.TargetObject); 
                    if (targetObject != null) { 

                        // get the PropertyDescriptor of the property we're setting 
                        PropertyDescriptor prop = TypeDescriptor.GetProperties(targetObject)[propRef.PropertyName];
                        if (prop != null) {

                            // okay, we have the property and we have the StringDictionary, now we generate 
                            // a line like this (c# example):
                            //      myObject.strDictProp["key"] = "value"; 
                            // for each key/value pair in the StringDictionary 

                            CodeStatementCollection statements = new CodeStatementCollection(); 
                            CodeMethodReferenceExpression methodRef = new CodeMethodReferenceExpression(propRef, "Add");

                            foreach (DictionaryEntry entry in dictionary) {
                                // serialize the key (in most languages this will look like "key") 
                                CodeExpression serializedKey = SerializeToExpression(manager, entry.Key);
 
                                // serialize the value (in most languages this will look like "value") 
                                CodeExpression serializedValue = SerializeToExpression(manager, entry.Value);
 
                                // serialize the method call (prop.Add("key", "value"))
                                if (serializedKey != null && serializedValue != null) {
                                    CodeMethodInvokeExpression statement = new CodeMethodInvokeExpression();
                                    statement.Method = methodRef; 
                                    statement.Parameters.Add(serializedKey);
                                    statement.Parameters.Add(serializedValue); 
                                    statements.Add(statement); 
                                }
                            } 

                            result = statements;
                        }
                    } 
                }
            } 
            else { 
                // 'value' is not a StringDictionary.  What should we do?
            } 

            return result;
        }
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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