IDataSourceFieldSchema Interface

Definition

Provides basic functionality for describing the structure of a data field at design time.

public interface class IDataSourceFieldSchema
public interface IDataSourceFieldSchema
type IDataSourceFieldSchema = interface
Public Interface IDataSourceFieldSchema
Derived

Remarks

The IDataSourceFieldSchema interface allows a class to implement a set of properties that describe a field in a data source. The DataSetFieldSchema class implements the IDataSourceFieldSchema interface.

Classes that implement the IDataSourceFieldSchema are used by custom control designer components to provide lists of data source fields and properties for data-bound controls at design time.

Properties

DataType

Gets the type of data stored in the field.

Identity

Gets a value indicating whether the value of the field automatically increments for each new row.

IsReadOnly

Gets a value indicating whether the field is editable.

IsUnique

Gets a value indicating whether values in the field are required to be unique.

Length

Gets a value indicting the size of data that can be stored in the field.

Name

Gets the name of the field.

Nullable

Gets a value indicating whether the field can accept null values.

Precision

Gets the maximum number of digits used to represent a numerical value in the field.

PrimaryKey

Gets a value indicating whether the field is in the primary key.

Scale

Gets the number of decimal places to which numerical values in the field are resolved.

Applies to

See also