BcfColumnDefaultValueFunction(T) Class


BcfColumnDefaultValueFunctionT Class

Column behavior item to provide dynamic default values for an individual column. This class cannot be inherited.

Inheritance Hierarchy

SystemObject
  CalculationWorks.BusinessModel.BehaviorsBcfColumnBehaviorItemBase
    CalculationWorks.BusinessModel.BehaviorsBcfColumnDefaultValueSourceBaseT
      CalculationWorks.BusinessModel.BehaviorsBcfColumnDefaultValueFunctionT

Namespace: CalculationWorks.BusinessModel.Behaviors
Assembly: CalculationWorks.BusinessModel (in CalculationWorks.BusinessModel.dll) Version: 3.0.2.0

Syntax

C++

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public sealed class BcfColumnDefaultValueFunction<T> : BcfColumnDefaultValueSourceBase<T>

Public NotInheritable Class BcfColumnDefaultValueFunction(Of T)
	Inherits BcfColumnDefaultValueSourceBase(Of T)

generic<typename T>
public ref class BcfColumnDefaultValueFunction sealed : public BcfColumnDefaultValueSourceBase<T>

[<SealedAttribute>]
type BcfColumnDefaultValueFunction<'T> =  
    class
        inherit BcfColumnDefaultValueSourceBase<'T>
    end

Type Parameters

T: The value type.

The BcfColumnDefaultValueFunctionT type exposes the following members.

Constructors

	Name	Description
	BcfColumnDefaultValueFunctionT	Initializes a new instance of the BcfColumnDefaultValueFunctionT class

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Properties

	Name	Description
	Column	Gets the BcfColumn the item belongs to. (Inherited from BcfColumnBehaviorItemBase.)
	DefaultValueFunction	Gets or sets the default value function.

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Methods

	Name	Description
	Equals	Determines whether the specified object is equal to the current object. (Inherited from Object.)
	GetHashCode	Serves as the default hash function. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Remarks

The property DefaultValueFunction can be updated at runtime.

To apply a IBcfColumnDefaultValueSource instance to a BcfColumnBehavior add it to the BcfColumnSetup.BehaviorItems.

Only one IBcfColumnDefaultValueSource instance per BcfColumnBehavior allowed.

Examples

In this example a column will be provided with an unique default value generator.

BcfColumnSetup columnSetup = myTableSetup.Columns["myColumnName"];
columnSetup.BehaviorItems.Add(new BcfColumnDefaultValueFunction<Guid>() { DefaultValueFunction = () => Guid.NewGuid() });

Version Information

CalculationWorks.BusinessModel

Supported in: 3.0, 2.1, 2.0

Reference

CalculationWorks.BusinessModel.Behaviors Namespace