public override string ToString()
{
StringBuilder builder = new StringBuilder();
builder.Append(JsonHelper.BeginObject());
builder.Append(JsonHelper.PropertyToJson("Id", Id));
builder.Append(JsonHelper.PropertyToJson("Title", Title));
builder.Append(JsonHelper.PropertyToJson("Description", Description));
builder.Append(JsonHelper.PropertyToJson("BeginDate", BeginDate));
builder.Append(JsonHelper.PropertyToJson("EndDate", EndDate));
builder.Append(JsonHelper.PropertyToJson("HasChildren", HasChildren));
builder.Append(JsonHelper.PropertyToJson("ParentId", ParentId));
builder.Append(JsonHelper.PropertyToJson("SourceURL", SourceURL));
builder.Append(JsonHelper.ArrayToJson("PictureURLs", PictureURLs, false));
builder.Append(JsonHelper.PropertyToJson("SourceRef", SourceRef, true));
builder.Append(JsonHelper.EndObject());
return(builder.ToString());
}