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\\\'必须引用命名空间System.Reflection,System.ComponentModel \\\'以下根据控件名和属性名取值 Public Function GetValueControlProperty(ByVal ClassInstance As Object, ByVal ControlName As String, ByVal PropertyName As String) As Object Dim Result As Object Dim myType As Type = ClassInstance.GetType Dim myFieldInfo As FieldInfo = myType.GetField("_" & ControlName, BindingFlags.NonPublic Or _ BindingFlags.Instance Or BindingFlags.Public Or BindingFlags.Instance) If Not myFieldInfo Is Nothing Then Dim properties As PropertyDescriptorCollection = TypeDescriptor.GetProperties(myType) Dim myProperty As PropertyDescriptor = properties.Find(PropertyName, False) If Not myProperty Is Nothing Then Dim ctr As Object ctr = myFieldInfo.GetValue(ClassInstance) Try Result = myProperty.GetValue(ctr) Catch ex As Exception MsgBox(ex.Message) End Try End If End If Return Result End Function \\\'以下根据控件名和属性名赋值 Public Function SetValueControlProperty(ByVal ClassInstance As Object, ByVal ControlName As String, ByVal PropertyName As String, ByVal Value As Object) As Object Dim Result As Object Dim myType As Type = ClassInstance.GetType Dim myFieldInfo As FieldInfo = myType.GetField("_" & ControlName, BindingFlags.NonPublic _ Or BindingFlags.Instance Or BindingFlags.Public Or BindingFlags.Instance) \\\'加"_"这个是特要紧的 If Not myFieldInfo Is Nothing Then Dim properties As PropertyDescriptorCollection = TypeDescriptor.GetProperties(myType) Dim myProperty As PropertyDescriptor = properties.Find(PropertyName, False) \\\'这里设为True就不用区分大小写了 If Not myProperty Is Nothing Then Dim ctr As Object ctr = myFieldInfo.GetValue(ClassInstance) \\\'取得控件实例 Try myProperty.SetValue(ctr, Value) Result = ctr Catch ex As Exception MsgBox(ex.Message) End Try End If End If Return Result End Function \\\'调用 \\\'以下实现Label1.Text=TextBox1.Text,Label2.Text=TextBox2 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim i As Integer For i = 1 To 2 Me.SetValueControlProperty(Me, "Label" & i.ToString, "Text", GetValueControlProperty(Me, "TextBox" & i.ToString, "Text")) Next i End Sub 返回类别: 教程 上一教程: .net探针 下一教程: .net辅助工具列表 您可以阅读与"反射应用之一：根据控件名、属性名进行取值和赋值"相关的教程: · 使用反射实现根据名称动态创建窗体的几种方式 · 在.NET上如何根据字符串动态创建控件 · 字符串根据多个字符进行分割的一种方式 · 一个功能完善的专栏治理的程序->这是asp.net的第二个应用(一) · 使用 ASP+ 列表绑定控件（中） |
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