TransactionRollingBackRule Class
Represents a rule that is called when a transaction is being rolled back in the model.
Inheritance Hierarchy
System.Object
Microsoft.VisualStudio.Modeling.Rule
Microsoft.VisualStudio.Modeling.TransactionRollingBackRule
Namespace: Microsoft.VisualStudio.Modeling
Assembly: Microsoft.VisualStudio.Modeling.Sdk.10.0 (in Microsoft.VisualStudio.Modeling.Sdk.10.0.dll)
Syntax
'宣言
Public MustInherit Class TransactionRollingBackRule _
Inherits Rule
public abstract class TransactionRollingBackRule : Rule
public ref class TransactionRollingBackRule abstract : public Rule
[<AbstractClass>]
type TransactionRollingBackRule =
class
inherit Rule
end
public abstract class TransactionRollingBackRule extends Rule
The TransactionRollingBackRule type exposes the following members.
Constructors
| Name | Description | |
|---|---|---|
.gif "Protected method") |
TransactionRollingBackRule |
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Properties
| Name | Description | |
|---|---|---|
.gif "Public property") |
FireBefore | true if this rule will be executed before the change occurs. (Inherited from Rule.) |
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FireImmediately | true if this rule will execute immediately the change occurs. (Inherited from Rule.) |
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FireOnLocalCommit | true if this rule will execute when the current transaction commits. (Inherited from Rule.) |
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FireOnTopLevelCommit | true if this rule will execute when the top level transaction commits. (Inherited from Rule.) |
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FireTime | Gets or sets when the rule should execute. Normally set by the RuleOn attribute. (Inherited from Rule.) |
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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.) |
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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 | |
|---|---|---|
.gif "Public method") |
CompareTo(Object) | Compares the rule to another object. (Inherited from Rule.) |
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CompareTo(Rule) | Compares the rule to another rule by their IDs. (Inherited from Rule.) |
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Equals(Object) | Verifies whether the rule is equal to another object. (Inherited from Rule.) |
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Equals(Rule) | Verifies whether a rule is equal to another rule. (Inherited from Rule.) |
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Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
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GetHashCode | Gets the hash code for the rule. (Inherited from Rule.) |
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GetType | Gets the Type of the current instance. (Inherited from Object.) |
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MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
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ToString | Returns a string that represents the current object. (Inherited from Object.) |
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TransactionRollingBack | public virtual method for the client to have his own user-defined before transaction rolledback rule class |
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Remarks
When an object of a specific type is added to the model and you want to do something programmatically ,you define a class that is derived from this class.
A RuleOnAttribute attribute placed on the class indicates what type of object the rule works on and when the rule should be used.
The rule is called when the specified type of transaction is being rolled back in the model.
You can also define rules for when a transaction is beginning (TransactionBeginningRule) and when a transaction is committing (TransactionCommittingRule).
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