// ArcGIS Snippet Title:
// Create Table
//
// Long Description:
// Creates a dataset in a workspace.
//
// Add the following references to the project:
// ESRI.ArcGIS.Geodatabase
// ESRI.ArcGIS.Geometry
// ESRI.ArcGIS.System
//
// Intended ArcGIS Products for this snippet:
// ArcGIS Desktop (ArcEditor, ArcInfo, ArcView)
// ArcGIS Engine
// ArcGIS Server
//
// Applicable ArcGIS Product Versions:
// 9.2
// 9.3
// 9.3.1
// 10.0
//
// Required ArcGIS Extensions:
// (NONE)
//
// Notes:
// This snippet is intended to be inserted at the base level of a Class.
// It is not intended to be nested within an existing Uitvoeren.
//
///<summary>Creates a table with some default fields.</summary>
///
///<param name="workspace">An IWorkspace2 interface</param>
///<param name="tableName">A System.String of the table name in the workspace. Example: "owners"</param>
///<param name="fields">An IFields interface or Nothing</param>
///
///<returns>An ITable interface or Nothing</returns>
///
///<remarks>
///Notes:
///(1) If an IFields interface is supplied for the 'fields' collection it will be used to create the
/// table. If a Nothing value is supplied for the 'fields' collection, a table will be created using
/// default values in the method.
///(2) If a table with the supplied 'tableName' exists in the workspace an ITable will be returned.
/// if table does not exit a new one will be created.
///</remarks>
public ESRI.ArcGIS.Geodatabase.ITable CreateOrOpenTableLog(ESRI.ArcGIS.Geodatabase.IWorkspace2 workspace, System.String tableName, ESRI.ArcGIS.Geodatabase.IFields fields)
{
// create the behavior clasid for the featureclass
ESRI.ArcGIS.esriSystem.UID uid = new ESRI.ArcGIS.esriSystem.UIDClass();
if (workspace == null)
{
return(null); // valid feature workspace not passed in as an argument to the method
}
ESRI.ArcGIS.Geodatabase.IFeatureWorkspace featureWorkspace = (ESRI.ArcGIS.Geodatabase.IFeatureWorkspace)workspace; // Explicit Cast
ESRI.ArcGIS.Geodatabase.ITable table;
if (workspace.get_NameExists(ESRI.ArcGIS.Geodatabase.esriDatasetType.esriDTTable, tableName))
{
// table with that name already exists return that table
table = featureWorkspace.OpenTable(tableName);
return(table);
}
uid.Value = "esriGeoDatabase.Object";
ESRI.ArcGIS.Geodatabase.IObjectClassDescription objectClassDescription = new ESRI.ArcGIS.Geodatabase.ObjectClassDescriptionClass();
// if a fields collection is not passed in then supply our own
if (fields == null)
{
// create the fields using the required fields method
fields = objectClassDescription.RequiredFields;
ESRI.ArcGIS.Geodatabase.IFieldsEdit fieldsEdit = (ESRI.ArcGIS.Geodatabase.IFieldsEdit)fields; // Explicit Cast
fieldsEdit.AddField(this.CreateFieldInt("ID"));
fieldsEdit.AddField(this.CreateFieldInt("index"));
fieldsEdit.AddField(this.CreateFieldDouble("X_From", 8, 2));
fieldsEdit.AddField(this.CreateFieldDouble("Y_From", 8, 2));
fieldsEdit.AddField(this.CreateFieldDouble("M_From", 8, 2));
fieldsEdit.AddField(this.CreateFieldDouble("X_To", 8, 2));
fieldsEdit.AddField(this.CreateFieldDouble("Y_To", 8, 2));
fieldsEdit.AddField(this.CreateFieldDouble("M_To", 8, 2));
// add field to field collection
fields = (ESRI.ArcGIS.Geodatabase.IFields)fieldsEdit; // Explicit Cast
}
// Use IFieldChecker to create a validated fields collection.
ESRI.ArcGIS.Geodatabase.IFieldChecker fieldChecker = new ESRI.ArcGIS.Geodatabase.FieldCheckerClass();
ESRI.ArcGIS.Geodatabase.IEnumFieldError enumFieldError = null;
ESRI.ArcGIS.Geodatabase.IFields validatedFields = null;
fieldChecker.ValidateWorkspace = (ESRI.ArcGIS.Geodatabase.IWorkspace)workspace;
fieldChecker.Validate(fields, out enumFieldError, out validatedFields);
// The enumFieldError enumerator can be inspected at this point to determine
// which fields were modified during validation.
// create and return the table
table = featureWorkspace.CreateTable(tableName, validatedFields, uid, null, "");
return(table);
}
/// <summary>
/// CreateFeatureClass
/// </summary>
/// <param name="FeatureWorkspace"></param>
/// <param name="LayerName"></param>
/// <param name="featureType"></param>
/// <param name="GeometryType"></param>
/// <returns></returns>
public IFeatureClass CreateFeatureClass(IFeatureWorkspace FeatureWorkspace, string LayerName, esriFeatureType featureType, esriGeometryType GeometryType)
{
//----------------
ESRI.ArcGIS.Geodatabase.FeatureClassDescriptionClass objectClassDescription = new ESRI.ArcGIS.Geodatabase.FeatureClassDescriptionClass();
// create the fields using the required fields method
ESRI.ArcGIS.Geodatabase.IFields fields = objectClassDescription.RequiredFields;
ESRI.ArcGIS.Geodatabase.IFieldsEdit fieldsEdit = (ESRI.ArcGIS.Geodatabase.IFieldsEdit)fields; // Explicit Cast
IField fd = null;
bool IsOIDField = false;
bool IsGeometryField = false;
for (int i = 0; i < fields.FieldCount; i++)
{
fd = fields.get_Field(i);
if (fd.Type == esriFieldType.esriFieldTypeOID)
{
(fd as IFieldEdit).Name_2 = this.OIDFieldName;
IsOIDField = true;
}
if (fd.Type == esriFieldType.esriFieldTypeGeometry)
{
(fd as IFieldEdit).Name_2 = this.GeometryFieldName;
(fd.GeometryDef as IGeometryDefEdit).GeometryType_2 = GeometryType;
IsGeometryField = true;
}
}
//----------------
if (IsOIDField == false)
{
//创建OBJECTID字段
IField field3 = new FieldClass();
IFieldEdit edit2 = field3 as IFieldEdit;
edit2.Name_2 = this.OIDFieldName;
edit2.AliasName_2 = this.OIDFieldName;
edit2.Type_2 = esriFieldType.esriFieldTypeOID;
fieldsEdit.AddField(field3);
}
string ShapeFiledName = this.GeometryFieldName;
if (IsGeometryField == false)
{
//创建几何字段
IGeometryDef def = new GeometryDefClass();
IGeometryDefEdit edit4 = def as IGeometryDefEdit;
edit4.GeometryType_2 = this.GeometryType;
edit4.GridCount_2 = 1;
edit4.set_GridSize(0, 1000);
edit4.AvgNumPoints_2 = 2;
edit4.HasM_2 = false;
edit4.HasZ_2 = false;
edit4.SpatialReference_2 = this.ShapeSpatialReference;
//
IField field4 = new FieldClass();
IFieldEdit edit3 = field4 as IFieldEdit;
edit3.Name_2 = this.GeometryFieldName;
edit3.AliasName_2 = this.GeometryFieldName;
edit3.Type_2 = esriFieldType.esriFieldTypeGeometry;
edit3.GeometryDef_2 = def;
fieldsEdit.AddField(field4);
//
ShapeFiledName = field4.Name;
}
UID uid = null;
UID uid2 = null;
switch (featureType)
{
case esriFeatureType.esriFTSimple: //FeatureClass
uid = objectClassDescription.InstanceCLSID;
uid2 = objectClassDescription.ClassExtensionCLSID;
break;
default:
break;
}
//创建要素对象
IFeatureClass fc = FeatureWorkspace.CreateFeatureClass(LayerName, fields, uid, uid2, featureType, ShapeFiledName, null);
//
return(fc);
}
public static IFeatureClass CreateFeatureClassInPGDB(IWorkspace2 workspace, IFeatureDataset featureDataset, string featureClassName, IFields fields, UID CLSID, UID CLSEXT, string strConfigKeyword, esriGeometryType esriGeometryType)
{
if (featureClassName == "")
{
return(null); // name was not passed in
}
ESRI.ArcGIS.Geodatabase.IFeatureClass featureClass;
ESRI.ArcGIS.Geodatabase.IFeatureWorkspace featureWorkspace = (ESRI.ArcGIS.Geodatabase.IFeatureWorkspace)workspace; // Explicit Cast
if (workspace.get_NameExists(ESRI.ArcGIS.Geodatabase.esriDatasetType.esriDTFeatureClass, featureClassName)) //feature class with that name already exists
{
featureClass = featureWorkspace.OpenFeatureClass(featureClassName);
return(featureClass);
}
// assign the class id value if not assigned
if (CLSID == null)
{
CLSID = new ESRI.ArcGIS.esriSystem.UIDClass();
CLSID.Value = "esriGeoDatabase.Feature";
}
ESRI.ArcGIS.Geodatabase.IObjectClassDescription objectClassDescription = new ESRI.ArcGIS.Geodatabase.FeatureClassDescriptionClass();
// if a fields collection is not passed in then supply our own
if (fields == null)
{
// create the fields using the required fields method
fields = objectClassDescription.RequiredFields;
ESRI.ArcGIS.Geodatabase.IFieldsEdit fieldsEdit = (ESRI.ArcGIS.Geodatabase.IFieldsEdit)fields; // Explicit Cast
ESRI.ArcGIS.Geodatabase.IField field = new ESRI.ArcGIS.Geodatabase.FieldClass();
// create a user defined text field
ESRI.ArcGIS.Geodatabase.IFieldEdit fieldEdit = (ESRI.ArcGIS.Geodatabase.IFieldEdit)field; // Explicit Cast
// setup field properties
fieldEdit.Name_2 = "SampleField";
fieldEdit.Type_2 = ESRI.ArcGIS.Geodatabase.esriFieldType.esriFieldTypeString;
fieldEdit.IsNullable_2 = true;
fieldEdit.AliasName_2 = "Sample Field Column";
fieldEdit.DefaultValue_2 = "test";
fieldEdit.Editable_2 = true;
fieldEdit.Length_2 = 100;
// add field to field collection
fieldsEdit.AddField(field);
fields = (ESRI.ArcGIS.Geodatabase.IFields)fieldsEdit; // Explicit Cast
}
System.String strShapeField = "";
// locate the shape field
for (int j = 0; j < fields.FieldCount; j++)
{
if (fields.get_Field(j).Type == esriFieldType.esriFieldTypeGeometry)
{
strShapeField = fields.get_Field(j).Name;
((IGeometryDefEdit)fields.get_Field(j).GeometryDef).GeometryType_2 = esriGeometryType;
}
}
// Use IFieldChecker to create a validated fields collection.
ESRI.ArcGIS.Geodatabase.IFieldChecker fieldChecker = new ESRI.ArcGIS.Geodatabase.FieldCheckerClass();
ESRI.ArcGIS.Geodatabase.IEnumFieldError enumFieldError = null;
ESRI.ArcGIS.Geodatabase.IFields validatedFields = null;
fieldChecker.ValidateWorkspace = (ESRI.ArcGIS.Geodatabase.IWorkspace)workspace;
fieldChecker.Validate(fields, out enumFieldError, out validatedFields);
// The enumFieldError enumerator can be inspected at this point to determine
// which fields were modified during validation.
// finally create and return the feature class
if (featureDataset == null)// if no feature dataset passed in, create at the workspace level
{
featureClass = featureWorkspace.CreateFeatureClass(featureClassName, validatedFields, CLSID, CLSEXT, ESRI.ArcGIS.Geodatabase.esriFeatureType.esriFTSimple, strShapeField, strConfigKeyword);
}
else
{
featureClass = featureDataset.CreateFeatureClass(featureClassName, validatedFields, CLSID, CLSEXT, ESRI.ArcGIS.Geodatabase.esriFeatureType.esriFTSimple, strShapeField, strConfigKeyword);
}
return(featureClass);
}