ArcGIS Pro 3.2 API Reference Guide
ArcGIS.Core.Data.DDL Namespace / FeatureClassDescription Class
Members Example

In This Topic
    FeatureClassDescription Class
    In This Topic
    Represents a mechanism to create a ArcGIS.Core.Data.FeatureClass.
    Object Model
    FeatureClassDescription ClassShapeDescription ClassSubtypeFieldDescription Class
    Syntax
    public class FeatureClassDescription : TableDescription 
    Public Class FeatureClassDescription 
       Inherits TableDescription
    Example
    64-bit Integer field
    FieldDescription bigIntegerFieldDescription = new FieldDescription("BigInteger_64", FieldType.BigInteger);
    
    ObjectID field
    // 64-bit
    FieldDescription oidFieldDescription_64 = new FieldDescription("ObjectID_64", FieldType.OID)
    {
      Length = 8
    };
        
    // 32-bit
    FieldDescription oidFieldDescription_32 = new FieldDescription("ObjectID_32", FieldType.OID)
    {
      Length = 4
    };
    
    DateOnly, TimeOnly, and TimestampOffset field
    // Earthquake occurrences date and time
        
    // 9/28/2014 (DateOnly)
    FieldDescription earthquakeDateOnlyFieldDescription = new FieldDescription("Earthquake_DateOnly", FieldType.DateOnly);
    
    // 1:16:42 AM (TimeOnly)
    FieldDescription earthquakeTimeOnlyFieldDescription = new FieldDescription("Earthquake_TimeOnly", FieldType.TimeOnly);
    
    // 9/28/2014 1:16:42.000 AM -09:00 (Timestamp with Offset)
    FieldDescription earthquakeTimestampOffsetFieldDescription = new FieldDescription("Earthquake_TimestampOffset_Local", FieldType.TimestampOffset);
    
    // 9/28/2014 1:16:42 AM (DateTime)
    FieldDescription earthquakeDateFieldDescription = new FieldDescription("Earthquake_Date", FieldType.Date);
    
    Creating a FeatureDataset with a FeatureClass in one operation
    public void CreateFeatureDatasetWithFeatureClassSnippet(Geodatabase geodatabase)
    {
      // Creating a FeatureDataset named as 'Parcel_Information' and a FeatureClass with name 'Parcels' in one operation
    
      string featureDatasetName = "Parcel_Information";
      string featureClassName = "Parcels";
    
      SchemaBuilder schemaBuilder = new SchemaBuilder(geodatabase);
    
      // Create a FeatureDataset token
      FeatureDatasetDescription featureDatasetDescription = new FeatureDatasetDescription(featureDatasetName, SpatialReferences.WGS84);
      FeatureDatasetToken featureDatasetToken = schemaBuilder.Create(featureDatasetDescription);
    
      // Create a FeatureClass description
      FeatureClassDescription featureClassDescription = new FeatureClassDescription(featureClassName,
        new List<FieldDescription>()
        {
          new FieldDescription("Id", FieldType.Integer),
          new FieldDescription("Address", FieldType.String)
        },
        new ShapeDescription(GeometryType.Point, SpatialReferences.WGS84));
    
      // Create a FeatureClass inside a FeatureDataset
      FeatureClassToken featureClassToken = schemaBuilder.Create(new FeatureDatasetDescription(featureDatasetToken), featureClassDescription);
    
      // Build status
      bool buildStatus = schemaBuilder.Build();
    
      // Build errors
      if (!buildStatus)
      {
        IReadOnlyList<string> errors = schemaBuilder.ErrorMessages;
      }
    }
    Creating a FeatureClass in existing FeatureDataset
    public void CreateFeatureClassInsideFeatureDatasetSnippet(Geodatabase geodatabase)
    {
      // Creating a FeatureClass named as 'Tax_Jurisdiction' in existing FeatureDataset with name 'Parcels_Information'
      string featureDatasetName = "Parcels_Information";
      string featureClassName = "Tax_Jurisdiction";
    
      // Create a FeatureClass description
      FeatureClassDescription featureClassDescription = new FeatureClassDescription(featureClassName,
        new List<FieldDescription>()
        {
          new FieldDescription("Tax_Id", FieldType.Integer),
          new FieldDescription("Address", FieldType.String)
        },
        new ShapeDescription(GeometryType.Point, SpatialReferences.WGS84));
    
      FeatureDatasetDefinition featureDatasetDefinition = geodatabase.GetDefinition<FeatureDatasetDefinition>(featureDatasetName);
    
      SchemaBuilder schemaBuilder = new SchemaBuilder(geodatabase);
    
      // Create a FeatureClass inside a FeatureDataset using a FeatureDatasetDefinition
      schemaBuilder.Create(new FeatureDatasetDescription(featureDatasetDefinition), featureClassDescription);
    
      // Build status
      bool buildStatus = schemaBuilder.Build();
    
      // Build errors
      if (!buildStatus)
      {
        IReadOnlyList<string> errors = schemaBuilder.ErrorMessages;
      }
    }
    Adding a Field that uses a domain
    public void AddFieldWithDomainSnippet(Geodatabase geodatabase)
    {
      // Adding a field,'PipeType', which uses the coded value domain to the 'Pipes' FeatureClass
    
      //The FeatureClass to add field
      string featureClassName = "Pipes";
    
      SchemaBuilder schemaBuilder = new SchemaBuilder(geodatabase);
    
      // Create a CodedValueDomain description for water pipes
      CodedValueDomainDescription pipeDomainDescription =
        new CodedValueDomainDescription("WaterPipeTypes", FieldType.String,
        new SortedList<object, string> { { "C_1", "Copper" },
          { "S_2", "Steel" } })
        {
          SplitPolicy = SplitPolicy.Duplicate,
          MergePolicy = MergePolicy.DefaultValue
        };
    
      // Create a coded value domain token
      CodedValueDomainToken codedValueDomainToken = schemaBuilder.Create(pipeDomainDescription);
    
      // Create a new description from domain token
      CodedValueDomainDescription codedValueDomainDescription = new CodedValueDomainDescription(codedValueDomainToken);
    
      // Create a field named as 'PipeType' using a domain description
      FieldDescription domainFieldDescription = new FieldDescription("PipeType", FieldType.String)
      { DomainDescription = codedValueDomainDescription };
    
      //Retrieve existing information for 'Pipes' FeatureClass
      FeatureClassDefinition originalFeatureClassDefinition = geodatabase.GetDefinition<FeatureClassDefinition>(featureClassName);
      FeatureClassDescription originalFeatureClassDescription =
        new FeatureClassDescription(originalFeatureClassDefinition);
    
      // Add domain field on existing fields
      List<FieldDescription> modifiedFieldDescriptions = new List<FieldDescription>(originalFeatureClassDescription.FieldDescriptions) { domainFieldDescription };
    
      // Create a new description with updated fields for 'Pipes' FeatureClass 
      FeatureClassDescription featureClassDescription =
        new FeatureClassDescription(originalFeatureClassDescription.Name, modifiedFieldDescriptions,
                                       originalFeatureClassDescription.ShapeDescription);
    
      // Update the 'Pipes' FeatureClass with domain field
      schemaBuilder.Modify(featureClassDescription);
    
      // Build status
      bool buildStatus = schemaBuilder.Build();
    
      // Build errors
      if (!buildStatus)
      {
        IReadOnlyList<string> errors = schemaBuilder.ErrorMessages;
      }
    }
    Inheritance Hierarchy

    System.Object
       ArcGIS.Core.Data.DDL.Description
          ArcGIS.Core.Data.DDL.TableDescription
             ArcGIS.Core.Data.DDL.FeatureClassDescription
                ArcGIS.Core.Data.DDL.AnnotationFeatureClassDescription

    Requirements

    Target Platforms: Windows 11, Windows 10

    ArcGIS Pro version: 3 or higher.
    See Also