SdsTypes in ​.NET framework

When working in .NET, use the SdsTypeBuilder to create SdsTypes. The SdsTypeBuilder eliminates potential errors that can occur when working with SdsTypes manually.

There are several ways to work with the SdsTypeBuilder. One is to use the static methods for convenience:

public enum State { Ok, Warning, Alarm } public class Simple { [SdsMember(IsKey = true, Order = 0)] public DateTime Time { get; set; } [SdsMember(IsQuality = true)] public State State { get; set; } public Double Measurement { get; set; } } SdsType simpleType = SdsTypeBuilder.CreateSdsType<Simple>(); simpleType.Id = "Simple"; simpleType.Name = "Simple"; simpleType.Description = "Basic sample type";

SdsTypeBuilder recognizes the System.ComponentModel.DataAnnotations.KeyAttribute and its own OSIsoft.Sds.SdsMemberAttribute. When using the SdsMemberAttribute to specify the primary index, set the IsKey to true.

The SdsType is created with the following parameters. SdsTypeBuilder automatically generates unique identifiers. Note that the following table contains only a partial list of fields.

The SdsTypeBuilder also supports derived types. You need not add the base types to Sequential Data Store (SDS (Sequential Data Store)) before using SdsTypeBuilder. Base types are maintained within the SdsType.