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
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 DbExpression。Gets 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 Type。Gets 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) |