/// <summary>
/// Returns the Json string as expected by the Google Api
/// </summary>
/// <returns></returns>
internal void GetJson(StreamWriter sw)
{
sw.Write("{");
sw.AppendIfNotNullOrEmpty("type", this.ColumnType.ToString().ToLower(CultureInfo.InvariantCulture));
if (this.Id != null)
{
sw.Write(",");
sw.AppendIfNotNullOrEmpty("id", this.Id);
}
if (this.Label != null)
{
sw.Write(",");
sw.AppendIfNotNullOrEmpty("label", this.Label);
}
if (this.Pattern != null)
{
sw.Write(",");
sw.AppendIfNotNullOrEmpty("pattern", this.Pattern);
}
List <Property> propertyList = this.PropertyMap.ToList();
if (!string.IsNullOrEmpty(this.Role))
{
propertyList.Add(new Property("role", this.Role));
}
Helper.JsonizeProperties(sw, propertyList);
sw.Write("}");
}
