TransactionBeginningRule Class

Represents a rule that is called when a transaction is beginning in the model.

Inheritance Hierarchy

System.Object
  Microsoft.VisualStudio.Modeling.Rule
    Microsoft.VisualStudio.Modeling.TransactionBeginningRule

Namespace:  Microsoft.VisualStudio.Modeling
Assembly:  Microsoft.VisualStudio.Modeling.Sdk.10.0 (in Microsoft.VisualStudio.Modeling.Sdk.10.0.dll)

Syntax

'Dichiarazione
Public MustInherit Class TransactionBeginningRule _
    Inherits Rule

public abstract class TransactionBeginningRule : Rule

public ref class TransactionBeginningRule abstract : public Rule

[<AbstractClass>]
type TransactionBeginningRule =  
    class
        inherit Rule
    end

public abstract class TransactionBeginningRule extends Rule

The TransactionBeginningRule type exposes the following members.

Constructors

	Name	Description
	TransactionBeginningRule

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Properties

	Name	Description
	FireBefore	true if this rule will be executed before the change occurs. (Inherited from Rule.)
	FireImmediately	true if this rule will execute immediately the change occurs. (Inherited from Rule.)
	FireOnLocalCommit	true if this rule will execute when the current transaction commits. (Inherited from Rule.)
	FireOnTopLevelCommit	true if this rule will execute when the top level transaction commits. (Inherited from Rule.)
	FireTime	Gets or sets when the rule should execute. Normally set by the RuleOn attribute. (Inherited from Rule.)
	IsEnabled	Gets or sets whether the rule is enabled. Normally true by default, but you can initialize it to false in the RuleOn attribute. (Inherited from Rule.)
	Priority	Gets the priority that is assigned to the rule. Helps to determine the order in which rules are executed at the end of a transaction. (Inherited from Rule.)

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Methods

	Name	Description
	CompareTo(Object)	Compares the rule to another object. (Inherited from Rule.)
	CompareTo(Rule)	Compares the rule to another rule by their IDs. (Inherited from Rule.)
	Equals(Object)	Verifies whether the rule is equal to another object. (Inherited from Rule.)
	Equals(Rule)	Verifies whether a rule is equal to another rule. (Inherited from Rule.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	GetHashCode	Gets the hash code for the rule. (Inherited from Rule.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)
	TransactionBeginning	public virtual method for the client to have his own user-defined transaction beginning rule class

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Remarks

Define a class derived from this if you want to do something whenever a transaction is opened.

Apply the RuleOnAttribute attribute to the class.

You can also define rules for when a transaction is committing (TransactionCommittingRule) and when a transaction is being rolled back (TransactionRollingBackRule).

For more information and examples, see Rules Propagate Changes Within the Model.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

See Also

Reference

Microsoft.VisualStudio.Modeling Namespace

Other Resources

Rules Propagate Changes Within the Model