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")

如何使用以下行我无法访问有关sqlinsert命令的参数集合，但我可以通过以下代码访问sqlinsertcommand及其命令文本：

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

如何通过fieldinfo或＆gt; NET Reflection中的其他相关类来访问该sqlparameter集合？看起来很粗鲁，但任何帮助甚至建议对我来说意义重大。

Answer 1

所以“cmd”是“System.Data.SqlClient.SqlCommand”的实例？ - 是的，它应该。然后它有一个属性“参数”，它保存你的参数。

.NET REFLECTION中使用FieldInfo类的问题

1 个答案: