我可以承载Windows窗体控件内 [英] Can I host a Windows Form inside a control

问题描述

我有一个客户它作为一个Visual Basic项目单一实例模式与有线presentation逻辑。

I have a customer which as a Visual Basic Project in single instance mode with a wired presentation logic.

主窗体包含有复式的TabPages TabControl的一个。 如果我点击TabPageA另一种形式示出的形态前和调整为具有相同的尺寸与TabPage的

The main form contains a TabControl with mutliple TabPages. If I click on TabPageA another form is shown in front of the Form and resized to have the same size as the TabPage.

如果我点击TabPageB的第一种形式是隐藏的，则显示另一种形式。 所以基本上用户看起来你有不同的TabPages TabControl的一个是情况并非如此。

If I click on TabPageB the first form is hidden and another form is displayed. So basically for the user it looks like you have a TabControl with different TabPages which is not the case.

我试着转换形式为用户控件，并把他们的TabPage的内部，但是，由于SingleInstance的应用程序，这将需要一个整体大量的重构。我尝试过，但最终放弃了，因为很多很多的运行时错误了，我不希望把更多的精力在此。

I tried converting the Forms to UserControls and put them inside the TabPage, but, thanks to the SingleInstance app, this would take a whole lot of refactoring. I tried it but eventually gave up because of many many runtime errors and I don't want to put any more effort in this.

我Ideam是，在运行时，我可以添加表格到的TabPages，让他们像用户控件，这甚至可能吗？

My Ideam was that, at runtime, I could add the forms to the TabPages and let them act like UserControls, is this even possible?

推荐答案

您可以通过它的顶层属性设置为False把一个Form类回子控件。它成为基本上与一些未使用的开销一个用户控件。使它看起来类似于这样：

You can turn a Form class back to a child control by setting its TopLevel property to False. It becomes essentially a UserControl with some unused overhead. Make it look similar to this:

Public Class Form1
    Public Sub New()
        InitializeComponent()
        Dim frm As New Form2
        frm.TopLevel = False
        frm.FormBorderStyle = Windows.Forms.FormBorderStyle.None
        frm.Visible = True
        frm.Dock = DockStyle.Fill
        TabPage1.Controls.Add(frm)
    End Sub
End Class

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