ADO.NET对象的构造(7)_OleDbParameter(下)

OleDbCommand构造 n Public Sub New() n Public Sub New(ByVal As ) n Pu

OleDbDataAdapter 构造 n Public Sub New() n Public Sub New(ByVal As ) n

n Overloads Public Overridable Function Add(ByVal As ) As Implements IList.Add n

示例 Public Sub CreateOleDbParameter() Dim myParameter As New OleDbParameter() myPara

OleDbParameter 构造 n Public Sub New() n Public Sub New(ByVal As ,ByVal As )

n Overloads Public Overridable Function Add() As n Overloads Public Sub Add(ByV

n Overloads Public Overridable Function Add() As n Overloads Public Overridable

n IsNull方法 n Overloads Public Function IsNull(ByVal As ) As n Over

DataRow构造 n Protected Friend Sub New(ByVal builder As ) DataRow 和 对象是 的主要组件。使用 Data

构造 n Public Sub New()’ 刚创建时，新的 对象没有默认的 或 属性。但是，在添加到 时，就给予列默认名称（“Column1”、“Column2”等等）