DbQueryCommandTree 类

定义

表示一项以命令目录树形式表示的查询操作。Represents a query operation expressed as a command tree. 此类不能被继承。This class cannot be inherited.

public ref class DbQueryCommandTree sealed : System::Data::Common::CommandTrees::DbCommandTree
public sealed class DbQueryCommandTree : System.Data.Common.CommandTrees.DbCommandTree
type DbQueryCommandTree = class
    inherit DbCommandTree
Public NotInheritable Class DbQueryCommandTree
Inherits DbCommandTree
继承
DbQueryCommandTree

注解

DbQueryCommandTree 用于描述查询。The DbQueryCommandTree describes a query.

属性

Parameters

获取在此 DbCommandTree 中可以引用的每个参数的名称和相应类型。Gets the name and corresponding type of each parameter that can be referenced within this DbCommandTree.

(继承自 DbCommandTree)
Query

获取用于定义查询操作逻辑的 DbExpressionGets an DbExpression that defines the logic of the query operation.

方法

Equals(Object)

确定指定对象是否等于当前对象。Determines whether the specified object is equal to the current object.

(继承自 Object)
GetHashCode()

作为默认哈希函数。Serves as the default hash function.

(继承自 Object)
GetType()

获取当前实例的 TypeGets the Type of the current instance.

(继承自 Object)
MemberwiseClone()

创建当前 Object 的浅表副本。Creates a shallow copy of the current Object.

(继承自 Object)
ToString()

返回表示当前对象的字符串。Returns a string that represents the current object.

(继承自 Object)

适用于