在.NET REFLECTION中使用FieldInfo類的問題

Question

<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()

Dim resources As   
System.ComponentModel.ComponentResourceManager = New System.ComponentModel.ComponentResourceManager(GetType(_Class))
    Me.SqlSelectCommand1 = New System.Data.SqlClient.SqlCommand
    Me.SqlInsertCommand1 = New System.Data.SqlClient.SqlCommand
    Me.SqlUpdateCommand1 = New System.Data.SqlClient.SqlCommand
    Me.SqlDeleteCommand1 = New System.Data.SqlClient.SqlCommand
    Me.SqlDataAdapter1 = New System.Data.SqlClient.SqlDataAdapter
    Me.SqlConnection1 = New System.Data.SqlClient.SqlConnection

.....
.....



Me.SqlInsertCommand1.CommandText = resources.GetString("SqlInsertCommand1.CommandText")
    Me.SqlInsertCommand1.Connection = Me.SqlConnection1
    Me.SqlInsertCommand1.Parameters.AddRange(New System.Data.SqlClient.SqlParameter() {New System.Data.SqlClient.SqlParameter("@MAIN_FACILITY_USED", System.Data.SqlDbType.NVarChar, 0, "MAIN FACILITY USED")

下一行的內容我無法到達有關sqlinsertcommand的參數的集合，但可以通過以下代碼到達sqlinsertcommand及其命令文本本身：

Dim flags As BindingFlags = BindingFlags.NonPublic Or BindingFlags.Instance Or BindingFlags.NonPublic
 For Each info As FieldInfo In AssemblyInstance.GetType().GetFields(flags)
  If info.FieldType.FullName = "System.Data.SqlClient.SqlCommand" Then
    cmd = CType(info.GetValue(AssemblyInstance), SqlCommand)
   End If
Next

如何通過fieldinfo或> NET Reflection中的其他相關類達到該sqlparameter集合？ 看起來很粗魯，但任何幫助甚至建議對我來說都意義非凡。

Answer 1

所以“ cmd”是“ System.Data.SqlClient.SqlCommand”的實例嗎？ -是的 那么它就有一個屬性“ Parameters”來保存您的參數。