DbExpressionVisitor.Visit 方法
定义
实现表达式的访问者模式。Implements the visitor pattern for expressions.
重载
| Visit(DbLikeExpression) |
在派生类中重写时,实现 DbLikeExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbLikeExpression. |
| Visit(DbLimitExpression) |
在派生类中重写时,实现 DbLimitExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbLimitExpression. |
| Visit(DbNewInstanceExpression) |
在派生类中重写时,实现 DbNewInstanceExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbNewInstanceExpression. |
| Visit(DbNotExpression) |
在派生类中重写时,实现 DbNotExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbNotExpression. |
| Visit(DbNullExpression) |
在派生类中重写时,实现 DbNullExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbNullExpression. |
| Visit(DbOfTypeExpression) |
在派生类中重写时,实现 DbOfTypeExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbOfTypeExpression. |
| Visit(DbOrExpression) |
在派生类中重写时,实现 DbOrExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbOrExpression. |
| Visit(DbParameterReferenceExpression) |
在派生类中重写时,实现 DbParameterReferenceExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbParameterReferenceExpression. |
| Visit(DbLambdaExpression) |
在派生类中重写时,实现 DbLambdaExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbLambdaExpression. |
| Visit(DbProjectExpression) |
在派生类中重写时,实现 DbProjectExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbProjectExpression. |
| Visit(DbQuantifierExpression) |
在派生类中重写时,实现 DbQuantifierExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbQuantifierExpression. |
| Visit(DbRefExpression) |
在派生类中重写时,实现 DbRefExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbRefExpression. |
| Visit(DbRefKeyExpression) |
在派生类中重写时,实现 DbRefKeyExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbRefKeyExpression. |
| Visit(DbRelationshipNavigationExpression) |
在派生类中重写时,实现 DbRelationshipNavigationExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbRelationshipNavigationExpression. |
| Visit(DbScanExpression) |
在派生类中重写时,实现 DbScanExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbScanExpression. |
| Visit(DbSkipExpression) |
在派生类中重写时,实现 DbSkipExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbSkipExpression. |
| Visit(DbSortExpression) |
在派生类中重写时,实现 DbSortExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbSortExpression. |
| Visit(DbTreatExpression) |
在派生类中重写时,实现 DbTreatExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbTreatExpression. |
| Visit(DbPropertyExpression) |
在派生类中重写时,实现 DbPropertyExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbPropertyExpression. |
| Visit(DbJoinExpression) |
在派生类中重写时,实现 DbJoinExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbJoinExpression. |
| Visit(DbIsOfExpression) |
在派生类中重写时,实现 DbIsOfExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbIsOfExpression. |
| Visit(DbIsNullExpression) |
在派生类中重写时,实现 DbIsNullExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbIsNullExpression. |
| Visit(DbAndExpression) |
在派生类中重写时,实现 DbAndExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbAndExpression. |
| Visit(DbApplyExpression) |
在派生类中重写时,实现 DbApplyExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbApplyExpression. |
| Visit(DbArithmeticExpression) |
在派生类中重写时,实现 DbArithmeticExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbArithmeticExpression. |
| Visit(DbCaseExpression) |
在派生类中重写时,实现 DbCaseExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbCaseExpression. |
| Visit(DbCastExpression) |
在派生类中重写时,实现 DbCastExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbCastExpression. |
| Visit(DbComparisonExpression) |
在派生类中重写时,实现 DbComparisonExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbComparisonExpression. |
| Visit(DbConstantExpression) |
在派生类中重写时,实现 DbConstantExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbConstantExpression. |
| Visit(DbCrossJoinExpression) |
在派生类中重写时,实现 DbCrossJoinExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbCrossJoinExpression. |
| Visit(DbDerefExpression) |
在派生类中重写时,实现 DbDerefExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbDerefExpression. |
| Visit(DbDistinctExpression) |
在派生类中重写时,实现 DbDistinctExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbDistinctExpression. |
| Visit(DbElementExpression) |
在派生类中重写时,实现 DbElementExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbElementExpression. |
| Visit(DbEntityRefExpression) |
在派生类中重写时,实现 DbEntityRefExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbEntityRefExpression. |
| Visit(DbExceptExpression) |
在派生类中重写时,实现 DbExceptExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbExceptExpression. |
| Visit(DbExpression) |
在派生类中重写时,处理无法识别的类型的任何表达式。When overridden in a derived class, handles any expression of an unrecognized type. |
| Visit(DbFilterExpression) |
在派生类中重写时,实现 DbFilterExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbFilterExpression. |
| Visit(DbFunctionExpression) |
在派生类中重写时,实现 DbFunctionExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbFunctionExpression. |
| Visit(DbGroupByExpression) |
在派生类中重写时,实现 DbGroupByExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbGroupByExpression. |
| Visit(DbIntersectExpression) |
在派生类中重写时,实现 DbIntersectExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbIntersectExpression. |
| Visit(DbIsEmptyExpression) |
在派生类中重写时,实现 DbIsEmptyExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbIsEmptyExpression. |
| Visit(DbUnionAllExpression) |
在派生类中重写时,实现 DbUnionAllExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbUnionAllExpression. |
| Visit(DbVariableReferenceExpression) |
在派生类中重写时,实现 DbVariableReferenceExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbVariableReferenceExpression. |
Visit(DbLikeExpression)
在派生类中重写时,实现 DbLikeExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbLikeExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbLikeExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbLikeExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbLikeExpression -> unit
Public MustOverride Sub Visit (expression As DbLikeExpression)
参数
- expression
- DbLikeExpression
所访问的 DbLikeExpression。The DbLikeExpression that is visited.
适用于
Visit(DbLimitExpression)
在派生类中重写时,实现 DbLimitExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbLimitExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbLimitExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbLimitExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbLimitExpression -> unit
Public MustOverride Sub Visit (expression As DbLimitExpression)
参数
- expression
- DbLimitExpression
所访问的 DbLimitExpression。The DbLimitExpression that is visited.
适用于
Visit(DbNewInstanceExpression)
在派生类中重写时,实现 DbNewInstanceExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbNewInstanceExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbNewInstanceExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbNewInstanceExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbNewInstanceExpression -> unit
Public MustOverride Sub Visit (expression As DbNewInstanceExpression)
参数
- expression
- DbNewInstanceExpression
所访问的 DbNewInstanceExpression。The DbNewInstanceExpression that is visited.
适用于
Visit(DbNotExpression)
在派生类中重写时,实现 DbNotExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbNotExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbNotExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbNotExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbNotExpression -> unit
Public MustOverride Sub Visit (expression As DbNotExpression)
参数
- expression
- DbNotExpression
所访问的 DbNotExpression。The DbNotExpression that is visited.
适用于
Visit(DbNullExpression)
在派生类中重写时,实现 DbNullExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbNullExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbNullExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbNullExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbNullExpression -> unit
Public MustOverride Sub Visit (expression As DbNullExpression)
参数
- expression
- DbNullExpression
所访问的 DbNullExpression。The DbNullExpression that is visited.
适用于
Visit(DbOfTypeExpression)
在派生类中重写时,实现 DbOfTypeExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbOfTypeExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbOfTypeExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbOfTypeExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbOfTypeExpression -> unit
Public MustOverride Sub Visit (expression As DbOfTypeExpression)
参数
- expression
- DbOfTypeExpression
所访问的 DbOfTypeExpression。The DbOfTypeExpression that is visited.
适用于
Visit(DbOrExpression)
在派生类中重写时,实现 DbOrExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbOrExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbOrExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbOrExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbOrExpression -> unit
Public MustOverride Sub Visit (expression As DbOrExpression)
参数
- expression
- DbOrExpression
所访问的 DbOrExpression。The DbOrExpression that is visited.
适用于
Visit(DbParameterReferenceExpression)
在派生类中重写时,实现 DbParameterReferenceExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbParameterReferenceExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbParameterReferenceExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbParameterReferenceExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbParameterReferenceExpression -> unit
Public MustOverride Sub Visit (expression As DbParameterReferenceExpression)
参数
- expression
- DbParameterReferenceExpression
所访问的 DbParameterReferenceExpression。The DbParameterReferenceExpression that is visited.
适用于
Visit(DbLambdaExpression)
在派生类中重写时,实现 DbLambdaExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbLambdaExpression.
public:
virtual void Visit(System::Data::Common::CommandTrees::DbLambdaExpression ^ expression);
public virtual void Visit (System.Data.Common.CommandTrees.DbLambdaExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbLambdaExpression -> unit
override this.Visit : System.Data.Common.CommandTrees.DbLambdaExpression -> unit
Public Overridable Sub Visit (expression As DbLambdaExpression)
参数
- expression
- DbLambdaExpression
所访问的 DbLambdaExpression。The DbLambdaExpression that is visited.
适用于
Visit(DbProjectExpression)
在派生类中重写时,实现 DbProjectExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbProjectExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbProjectExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbProjectExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbProjectExpression -> unit
Public MustOverride Sub Visit (expression As DbProjectExpression)
参数
- expression
- DbProjectExpression
所访问的 DbProjectExpression。The DbProjectExpression that is visited.
适用于
Visit(DbQuantifierExpression)
在派生类中重写时,实现 DbQuantifierExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbQuantifierExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbQuantifierExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbQuantifierExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbQuantifierExpression -> unit
Public MustOverride Sub Visit (expression As DbQuantifierExpression)
参数
- expression
- DbQuantifierExpression
所访问的 DbQuantifierExpression。The DbQuantifierExpression that is visited.
适用于
Visit(DbRefExpression)
在派生类中重写时,实现 DbRefExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbRefExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbRefExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbRefExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbRefExpression -> unit
Public MustOverride Sub Visit (expression As DbRefExpression)
参数
- expression
- DbRefExpression
所访问的 DbRefExpression。The DbRefExpression that is visited.
适用于
Visit(DbRefKeyExpression)
在派生类中重写时,实现 DbRefKeyExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbRefKeyExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbRefKeyExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbRefKeyExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbRefKeyExpression -> unit
Public MustOverride Sub Visit (expression As DbRefKeyExpression)
参数
- expression
- DbRefKeyExpression
所访问的 DbRefKeyExpression。The DbRefKeyExpression that is visited.
适用于
Visit(DbRelationshipNavigationExpression)
在派生类中重写时,实现 DbRelationshipNavigationExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbRelationshipNavigationExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbRelationshipNavigationExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbRelationshipNavigationExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbRelationshipNavigationExpression -> unit
Public MustOverride Sub Visit (expression As DbRelationshipNavigationExpression)
参数
- expression
- DbRelationshipNavigationExpression
所访问的 DbRelationshipNavigationExpression。The DbRelationshipNavigationExpression that is visited.
适用于
Visit(DbScanExpression)
在派生类中重写时,实现 DbScanExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbScanExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbScanExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbScanExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbScanExpression -> unit
Public MustOverride Sub Visit (expression As DbScanExpression)
参数
- expression
- DbScanExpression
所访问的 DbScanExpression。The DbScanExpression that is visited.
适用于
Visit(DbSkipExpression)
在派生类中重写时,实现 DbSkipExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbSkipExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbSkipExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbSkipExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbSkipExpression -> unit
Public MustOverride Sub Visit (expression As DbSkipExpression)
参数
- expression
- DbSkipExpression
所访问的 DbSkipExpression。The DbSkipExpression that is visited.
适用于
Visit(DbSortExpression)
在派生类中重写时,实现 DbSortExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbSortExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbSortExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbSortExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbSortExpression -> unit
Public MustOverride Sub Visit (expression As DbSortExpression)
参数
- expression
- DbSortExpression
所访问的 DbSortExpression。The DbSortExpression that is visited.
适用于
Visit(DbTreatExpression)
在派生类中重写时,实现 DbTreatExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbTreatExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbTreatExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbTreatExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbTreatExpression -> unit
Public MustOverride Sub Visit (expression As DbTreatExpression)
参数
- expression
- DbTreatExpression
所访问的 DbTreatExpression。The DbTreatExpression that is visited.
适用于
Visit(DbPropertyExpression)
在派生类中重写时,实现 DbPropertyExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbPropertyExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbPropertyExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbPropertyExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbPropertyExpression -> unit
Public MustOverride Sub Visit (expression As DbPropertyExpression)
参数
- expression
- DbPropertyExpression
所访问的 DbPropertyExpression。The DbPropertyExpression that is visited.
适用于
Visit(DbJoinExpression)
在派生类中重写时,实现 DbJoinExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbJoinExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbJoinExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbJoinExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbJoinExpression -> unit
Public MustOverride Sub Visit (expression As DbJoinExpression)
参数
- expression
- DbJoinExpression
所访问的 DbJoinExpression。The DbJoinExpression that is visited.
适用于
Visit(DbIsOfExpression)
在派生类中重写时,实现 DbIsOfExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbIsOfExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbIsOfExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbIsOfExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbIsOfExpression -> unit
Public MustOverride Sub Visit (expression As DbIsOfExpression)
参数
- expression
- DbIsOfExpression
所访问的 DbIsOfExpression。The DbIsOfExpression that is visited.
适用于
Visit(DbIsNullExpression)
在派生类中重写时,实现 DbIsNullExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbIsNullExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbIsNullExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbIsNullExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbIsNullExpression -> unit
Public MustOverride Sub Visit (expression As DbIsNullExpression)
参数
- expression
- DbIsNullExpression
所访问的 DbIsNullExpression。The DbIsNullExpression that is visited.
适用于
Visit(DbAndExpression)
在派生类中重写时,实现 DbAndExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbAndExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbAndExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbAndExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbAndExpression -> unit
Public MustOverride Sub Visit (expression As DbAndExpression)
参数
- expression
- DbAndExpression
所访问的 DbAndExpression。The DbAndExpression that is visited.
适用于
Visit(DbApplyExpression)
在派生类中重写时,实现 DbApplyExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbApplyExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbApplyExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbApplyExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbApplyExpression -> unit
Public MustOverride Sub Visit (expression As DbApplyExpression)
参数
- expression
- DbApplyExpression
所访问的 DbApplyExpression。The DbApplyExpression that is visited.
适用于
Visit(DbArithmeticExpression)
在派生类中重写时,实现 DbArithmeticExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbArithmeticExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbArithmeticExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbArithmeticExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbArithmeticExpression -> unit
Public MustOverride Sub Visit (expression As DbArithmeticExpression)
参数
- expression
- DbArithmeticExpression
所访问的 DbArithmeticExpression。The DbArithmeticExpression that is visited.
适用于
Visit(DbCaseExpression)
在派生类中重写时,实现 DbCaseExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbCaseExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbCaseExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbCaseExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbCaseExpression -> unit
Public MustOverride Sub Visit (expression As DbCaseExpression)
参数
- expression
- DbCaseExpression
所访问的 DbCaseExpression。The DbCaseExpression that is visited.
适用于
Visit(DbCastExpression)
在派生类中重写时,实现 DbCastExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbCastExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbCastExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbCastExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbCastExpression -> unit
Public MustOverride Sub Visit (expression As DbCastExpression)
参数
- expression
- DbCastExpression
所访问的 DbCastExpression。The DbCastExpression that is visited.
适用于
Visit(DbComparisonExpression)
在派生类中重写时,实现 DbComparisonExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbComparisonExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbComparisonExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbComparisonExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbComparisonExpression -> unit
Public MustOverride Sub Visit (expression As DbComparisonExpression)
参数
- expression
- DbComparisonExpression
所访问的 DbComparisonExpression。The DbComparisonExpression that is visited.
适用于
Visit(DbConstantExpression)
在派生类中重写时,实现 DbConstantExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbConstantExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbConstantExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbConstantExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbConstantExpression -> unit
Public MustOverride Sub Visit (expression As DbConstantExpression)
参数
- expression
- DbConstantExpression
所访问的 DbConstantExpression。The DbConstantExpression that is visited.
适用于
Visit(DbCrossJoinExpression)
在派生类中重写时,实现 DbCrossJoinExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbCrossJoinExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbCrossJoinExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbCrossJoinExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbCrossJoinExpression -> unit
Public MustOverride Sub Visit (expression As DbCrossJoinExpression)
参数
- expression
- DbCrossJoinExpression
所访问的 DbCrossJoinExpression。The DbCrossJoinExpression that is visited.
适用于
Visit(DbDerefExpression)
在派生类中重写时,实现 DbDerefExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbDerefExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbDerefExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbDerefExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbDerefExpression -> unit
Public MustOverride Sub Visit (expression As DbDerefExpression)
参数
- expression
- DbDerefExpression
所访问的 DbDerefExpression。The DbDerefExpression that is visited.
适用于
Visit(DbDistinctExpression)
在派生类中重写时,实现 DbDistinctExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbDistinctExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbDistinctExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbDistinctExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbDistinctExpression -> unit
Public MustOverride Sub Visit (expression As DbDistinctExpression)
参数
- expression
- DbDistinctExpression
所访问的 DbDistinctExpression。The DbDistinctExpression that is visited.
适用于
Visit(DbElementExpression)
在派生类中重写时,实现 DbElementExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbElementExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbElementExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbElementExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbElementExpression -> unit
Public MustOverride Sub Visit (expression As DbElementExpression)
参数
- expression
- DbElementExpression
所访问的 DbElementExpression。The DbElementExpression that is visited.
适用于
Visit(DbEntityRefExpression)
在派生类中重写时,实现 DbEntityRefExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbEntityRefExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbEntityRefExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbEntityRefExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbEntityRefExpression -> unit
Public MustOverride Sub Visit (expression As DbEntityRefExpression)
参数
- expression
- DbEntityRefExpression
所访问的 DbEntityRefExpression。The DbEntityRefExpression that is visited.
适用于
Visit(DbExceptExpression)
在派生类中重写时,实现 DbExceptExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbExceptExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbExceptExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbExceptExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbExceptExpression -> unit
Public MustOverride Sub Visit (expression As DbExceptExpression)
参数
- expression
- DbExceptExpression
所访问的 DbExceptExpression。The DbExceptExpression that is visited.
适用于
Visit(DbExpression)
在派生类中重写时,处理无法识别的类型的任何表达式。When overridden in a derived class, handles any expression of an unrecognized type.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbExpression -> unit
Public MustOverride Sub Visit (expression As DbExpression)
参数
- expression
- DbExpression
要处理的表达式。The expression to be handled.
注解
遇到其他无法识别的类型的表达式时进行调用。Called when an expression of an otherwise unrecognized type is encountered.
适用于
Visit(DbFilterExpression)
在派生类中重写时,实现 DbFilterExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbFilterExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbFilterExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbFilterExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbFilterExpression -> unit
Public MustOverride Sub Visit (expression As DbFilterExpression)
参数
- expression
- DbFilterExpression
所访问的 DbFilterExpression。The DbFilterExpression that is visited.
适用于
Visit(DbFunctionExpression)
在派生类中重写时,实现 DbFunctionExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbFunctionExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbFunctionExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbFunctionExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbFunctionExpression -> unit
Public MustOverride Sub Visit (expression As DbFunctionExpression)
参数
- expression
- DbFunctionExpression
所访问的 DbFunctionExpression。The DbFunctionExpression that is visited.
适用于
Visit(DbGroupByExpression)
在派生类中重写时,实现 DbGroupByExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbGroupByExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbGroupByExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbGroupByExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbGroupByExpression -> unit
Public MustOverride Sub Visit (expression As DbGroupByExpression)
参数
- expression
- DbGroupByExpression
所访问的 DbGroupByExpression。The DbGroupByExpression that is visited.
适用于
Visit(DbIntersectExpression)
在派生类中重写时,实现 DbIntersectExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbIntersectExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbIntersectExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbIntersectExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbIntersectExpression -> unit
Public MustOverride Sub Visit (expression As DbIntersectExpression)
参数
- expression
- DbIntersectExpression
所访问的 DbIntersectExpression。The DbIntersectExpression that is visited.
适用于
Visit(DbIsEmptyExpression)
在派生类中重写时,实现 DbIsEmptyExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbIsEmptyExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbIsEmptyExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbIsEmptyExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbIsEmptyExpression -> unit
Public MustOverride Sub Visit (expression As DbIsEmptyExpression)
参数
- expression
- DbIsEmptyExpression
所访问的 DbIsEmptyExpression。The DbIsEmptyExpression that is visited.
适用于
Visit(DbUnionAllExpression)
在派生类中重写时,实现 DbUnionAllExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbUnionAllExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbUnionAllExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbUnionAllExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbUnionAllExpression -> unit
Public MustOverride Sub Visit (expression As DbUnionAllExpression)
参数
- expression
- DbUnionAllExpression
所访问的 DbUnionAllExpression。The DbUnionAllExpression that is visited.
适用于
Visit(DbVariableReferenceExpression)
在派生类中重写时,实现 DbVariableReferenceExpression 的访问者模式。When overridden in a derived class, implements the visitor pattern for DbVariableReferenceExpression.
public:
abstract void Visit(System::Data::Common::CommandTrees::DbVariableReferenceExpression ^ expression);
public abstract void Visit (System.Data.Common.CommandTrees.DbVariableReferenceExpression expression);
abstract member Visit : System.Data.Common.CommandTrees.DbVariableReferenceExpression -> unit
Public MustOverride Sub Visit (expression As DbVariableReferenceExpression)
参数
- expression
- DbVariableReferenceExpression
所访问的 DbVariableReferenceExpression。The DbVariableReferenceExpression that is visited.