在 Visual Studio 2015 和 Windows 10 中无法获取 XP 样式按钮 (FlatStyle=System)？

Question

我已经尝试了很多解决方案来在 VB.NET 上使用 FlatStyle=System 为每个按钮以及使用

Shared Sub Main()
    Application.EnableVisualStyles()
    Application.Run(New Form1())
End Sub

在 Form1 类中，但它不起作用。我所能做的就是假设我无法获得 XP 样式的按钮，因为我的 Windows 10 设置不合适——因为 MSDN 页面指出对于 FlatStyle=System，控件的外观采用操作系统设置。因此，在使用 VS 2015 的 Windows 10 中必须做什么才能获得 XP 风格的按钮？

Answer 1

通过添加以下导入并修改 Form1 的构造函数（新子例程），我获得了在 Windows 10 和 Visual Studio 2015 中工作的 XP 样式：

Imports System.Windows.Forms.VisualStyles

Public Sub New()
     InitializeComponent()
     ' Add any initialization after the InitializeComponent() call.
     Application.VisualStyleState = VisualStyleState.NoneEnabled
End Sub

如果您想了解上述解决方案为何如此，那么您应该尝试查看下面的 MSDN 示例，我必须对其进行修改才能使其运行。首先在VS中新建一个Project，添加一个Form1，然后将下面的代码全部粘贴到Form1的代码中：

Imports System
Imports System.Drawing
Imports System.Windows.Forms
Imports System.Windows.Forms.VisualStyles
Public Class Form1
    Inherits Form
    Private WithEvents button1 As New Button()
    Private radioButton1 As New RadioButton()
    Private radioButton2 As New RadioButton()
    Private radioButton3 As New RadioButton()
    Private radioButton4 As New RadioButton()

    Public Sub New()
        With button1
            .AutoSize = True
            .Location = New Point(10, 10)
            .Text = "Update VisualStyleState"
        End With

        With radioButton1
            .Location = New Point(10, 50)
            .AutoSize = True
            .Text = "Apply styles to client area only"
        End With

        With radioButton2
            .Location = New Point(10, 70)
            .AutoSize = True
            .Text = "Apply styles to nonclient area only"
        End With

        With radioButton3
            .Location = New Point(10, 90)
            .AutoSize = True
            .Text = "Apply styles to client and nonclient areas"
        End With

        With radioButton4
            .Location = New Point(10, 110)
            .AutoSize = True
            .Text = "Disable styles in all areas"
        End With

        Me.Text = "VisualStyleState Test"
        Me.Controls.AddRange(New Control() {button1, radioButton1,
                radioButton2, radioButton3, radioButton4})
    End Sub

    <STAThread()>
    Shared Sub Main()
        Application.EnableVisualStyles()
        Application.Run(New Form1())
    End Sub

    Sub button1_Click(ByVal sender As Object, ByVal e As EventArgs) _
            Handles button1.Click

        If radioButton1.Checked Then
            Application.VisualStyleState =
                    VisualStyleState.ClientAreaEnabled
        ElseIf radioButton2.Checked Then
            Application.VisualStyleState =
                    VisualStyleState.NonClientAreaEnabled
        ElseIf radioButton3.Checked Then
            Application.VisualStyleState =
                    VisualStyleState.ClientAndNonClientAreasEnabled
        ElseIf radioButton4.Checked Then
            Application.VisualStyleState =
                    VisualStyleState.NoneEnabled
        End If

        ' Repaint the form and all child controls.
        Me.Invalidate(True)
    End Sub

在运行时，只需单击各种 RadioButton，然后单击 Button1，然后您将看到客户端（边框）和非客户端（内部控件）发生变化。