idesignerserializationmanagersample.cs

//<snippet1>
using System;
using System.CodeDom;
using System.ComponentModel;
using System.ComponentModel.Design.Serialization;

namespace CodeDomSerializerSample
{
    internal class MyCodeDomSerializer : CodeDomSerializer
    {
        public override object Deserialize(IDesignerSerializationManager manager, object codeObject)
        {
            // Associate the component with the serializer.
            CodeDomSerializer baseClassSerializer = (CodeDomSerializer)manager.
            GetSerializer(typeof(MyComponent).BaseType, typeof(CodeDomSerializer));

            /* This is the simplest case, in which the class just calls the base class
                to do the work. */
            return baseClassSerializer.Deserialize(manager, codeObject);
        }

        public override object Serialize(IDesignerSerializationManager manager, object value)
        {
            /* Associate the component with the serializer in the same manner as with
                Deserialize */
            CodeDomSerializer baseClassSerializer = (CodeDomSerializer)manager.
                GetSerializer(typeof(MyComponent).BaseType, typeof(CodeDomSerializer));

            object codeObject = baseClassSerializer.Serialize(manager, value);

            /* Anything could be in the codeObject. This sample operates on a
                CodeStatementCollection. */
            if (codeObject is CodeStatementCollection statements)
            {
                // The code statement collection is valid, so add a comment.
                string commentText = "This comment was added to this object by a custom serializer.";
                CodeCommentStatement comment = new(commentText);
                statements.Insert(0, comment);
            }
            return codeObject;
        }
    }

    //<Snippet2>
    [DesignerSerializer(typeof(MyCodeDomSerializer), typeof(CodeDomSerializer))]
    public class MyComponent : Component
    {
        [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
        public string LocalProperty { get; set; } = "Component Property Value";
    }
    //</Snippet2>
}
//</snippet1>

namespace CodeDomSerializerSample
{
    class CodeDomSerializerStart
    {
        [STAThread]
        static void Main()
        {
        }
    }
}