Provides access to members that return information about the field. Note: the IField interface has been superseded byIField2. Please consider using the more recent version.
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Description
The field object represents a column in a table. A field has many properties, the most obvious ones being its name and its datatype. The esriFieldType enumeration lists the possible datatypes.
Members
Description | ||
---|---|---|
AliasName | The alias name of the field. | |
CheckValue | Indicates if the value is valid given the field definition. | |
DefaultValue | The default value of the field. | |
Domain | The default domain of the field. | |
DomainFixed | Indicates if the field's domain is fixed. | |
Editable | Indicates if the field is editable. | |
GeometryDef | The geometry definition for the field if IsGeometry is TRUE. | |
IsNullable | Indicates if the field can contain null values. | |
Length | The maximum length, in bytes, for values described by the field. | |
Name | The name of the field. | |
Precision | The precision for field values. | |
Required | Indicates if the field is required. | |
Scale | The scale for field values. | |
Type | The type of the field. | |
VarType | The VARTYPE of the field (e.g. VT_I4). |
CoClasses that implement IField
CoClasses and Classes | Description |
---|---|
Field | ESRI Field object. |
Remarks
When you create a field of type esriFieldTypeSingle, esriFieldTypeDouble or esriFieldTypeInteger, and specify zero for precision and scale, the geodatabase will attempt to create a binary type field if the underlying database supports it. Personal geodatabases support only binary type fields. ArcGIS ignores precision and scale of binary type fields.
The length property of a field has meaning only for esriFieldTypeString fields. The length property for all other field types is not important and will be ignored if specified.