IDataSourceFieldSchema Interface

Definition

Namespace:

System.Web.UI.Design

Assembly:

System.Design.dll

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

System.Web.UI.Design.DataSetFieldSchema

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.

See also

• DataColumn
• DataSetFieldSchema
• Extending Design-Time Support