设置 Windows 窗体窗口的窗口状态的提示

发布于 2024-08-22 12:53:53 字数 204 浏览 7 评论 0原文

我有一个可打开 MDI 子窗体的 Windows 窗体应用程序。当我选择这些表单时，我需要将其窗口状态设置或呈现为最大化。问题是，当我在打开的窗体之间导航时，它会恢复到正常窗口状态，而当我再次将窗口状态设置为最大化时，它会显示从正常状态到最大化状态的转换，而且看起来不太好。

如何创建具有 MDI 父窗体并在最大化窗口状态下打开许多 MDI 子窗体的 Windows 应用程序？

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残月升风 2024-08-29 12:53:53

以下是基于使用 MDI“父窗体和子窗体范例”的答案，并具有以下假设：

您在 MDIParentForm 上有一个 MenuStrip 控件 'Dock = 'Top，并且您已经实现了自动 MDI &Window菜单处理程序，如下所述：如何：创建 MDI 窗口使用 MenuStrip 列出
您正在创建新的子表单：
a.没有 MaximizeBox、MinimizeBox 等，但可能有 ControlBox（用于关闭它们）
b.这些子表单可以调整大小，也可以不调整大小：我们不会在这里考虑其含义。
您希望这些 MDIChildForm 在 MDIParent 窗体中最大化显示，但不遮挡 MDIParentForm 的菜单。

好的：假设您已经完全设计了所有子表单，“等待”：我们可能会在您的 MDIParentForm 代码中看到类似这样的代码：

    // create instances of your child forms
    Form2 f2 = new Form2();
    Form3 f3 = new Form3();
    Form4 f4 = new Form4();
    Form5 f5 = new Form5();

    private void MDIParentForm1_Load(object sender, EventArgs e)
    {
        f2.Text = "subForm1";
        f3.Text = "subForm2";
        f4.Text = "subForm3";
        f5.Text = "subForm4";

        f2.MdiParent = this;
        f3.MdiParent = this;
        f4.MdiParent = this;
        f5.MdiParent = this;

        f2.Dock = DockStyle.Fill;
        f3.Dock = DockStyle.Fill;
        f4.Dock = DockStyle.Fill;
        f5.Dock = DockStyle.Fill;

        f2.Show();
        f3.Show();
        f4.Show();
        f5.Show();
    }

此时，应用到子表单的停靠样式“填充”将使它们充满 -屏幕，并防止它们遮挡 MDIParentForm 菜单：并且该菜单将允许您自动选择哪一个位于最前面。

现在，如果您想做一些更奇特的事情：例如调整子表单的大小、平铺它们、级联它们。您必须更改这些子窗口的“Dock”属性：然后您可以使用内置的 MDI 范例窗口排列工具，如下所述：如何：排列 MDI 子窗体

如果您想创建一种类型的预定义子窗体的多个实例表单：如何创建 MDI 子表单。 ..请参阅有关如何使用“新菜单条目：可能有用”的示例。

Here's an answer based on using the MDI "Parent Form and Child Form paradigm," with the following assumptions :

you have a MenuStrip control 'Dock = 'Top on your MDIParentForm, and you've implemented the automatic MDI &Window menu handler as described in : How to: Create an MDI Window List with MenuStrip
you are creating new child forms that :
a. do not have a MaximizeBox, MinimizeBox, etc., but may have ControlBox (for closing them)
b. these child forms may be resizable or not : we won't consider the implications of that here.
You want these MDIChildForms to display maximized in the MDIParent Form, but not to obscure the MDIParentForm's menu.

Okay : assuming you have all your child Forms fully designed, "waiting in the wings" : we might see some code like this in your MDIParentForm code :

    // create instances of your child forms
    Form2 f2 = new Form2();
    Form3 f3 = new Form3();
    Form4 f4 = new Form4();
    Form5 f5 = new Form5();

    private void MDIParentForm1_Load(object sender, EventArgs e)
    {
        f2.Text = "subForm1";
        f3.Text = "subForm2";
        f4.Text = "subForm3";
        f5.Text = "subForm4";

        f2.MdiParent = this;
        f3.MdiParent = this;
        f4.MdiParent = this;
        f5.MdiParent = this;

        f2.Dock = DockStyle.Fill;
        f3.Dock = DockStyle.Fill;
        f4.Dock = DockStyle.Fill;
        f5.Dock = DockStyle.Fill;

        f2.Show();
        f3.Show();
        f4.Show();
        f5.Show();
    }

At this point, the dock style 'Fill applied to the child forms will make them full-screen, and keep them from obscuring the MDIParentForm menu : and the menu will allow you to auto-select which one is frontmost.

Now, if you want to do fancier stuff : like resizing the child Forms, tiling them, cascading them. You are going to have to change the 'Dock property of these child windows : and then you can make use of the built-in MDI paradigm window arranging facilities as described here : How to: Arrange MDI Child Forms

And if you want to create multiple instances of one type of pre-defined child form : How to Create MDI Child Forms ... see the example on how to use a 'New menu entry : may prove useful.

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