每次运行项目时,带有MainMenu的表单都会缩小

时间:2015-02-11 17:54:36

标签: c# winforms menu visual-c#-express-2010 visual-studio-designer

每当我构建以下程序时,Form1的大小会缩小20(在某些情况下,我需要对表单进行更改,例如将someLaggyControl1移动几个像素但并非总是如此。这很奇怪。)表单使用MainMenu作为菜单,而不是MenuStrip。是的,MainMenu较旧,不建议使用,但我需要使用它有几个原因,其中一个原因是radio-button items。更改为MenuStrip对我来说不是一个有效的解决方案。

以下是重现此问题所需的代码:

Form1.designer.cs

namespace MainMenuMCVE
{
    partial class Form1
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing) {
            if (disposing && (components != null)) {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent() {
            this.components = new System.ComponentModel.Container();
            this.MainMenu1 = new System.Windows.Forms.MainMenu(this.components);
            this.menuItem1 = new System.Windows.Forms.MenuItem();
            this.menuItem2 = new System.Windows.Forms.MenuItem();
            this.menuItem7 = new System.Windows.Forms.MenuItem();
            this.menuItem8 = new System.Windows.Forms.MenuItem();
            this.menuItem3 = new System.Windows.Forms.MenuItem();
            this.menuItem4 = new System.Windows.Forms.MenuItem();
            this.menuItem5 = new System.Windows.Forms.MenuItem();
            this.menuItem6 = new System.Windows.Forms.MenuItem();
            this.someLaggyControl1 = new MainMenuMCVE.SomeLaggyControl();
            this.SuspendLayout();
            // 
            // MainMenu1
            // 
            this.MainMenu1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
            this.menuItem1,
            this.menuItem5});
            // 
            // menuItem1
            // 
            this.menuItem1.Index = 0;
            this.menuItem1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
            this.menuItem2,
            this.menuItem3,
            this.menuItem4});
            this.menuItem1.Text = "Example";
            // 
            // menuItem2
            // 
            this.menuItem2.Index = 0;
            this.menuItem2.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
            this.menuItem7,
            this.menuItem8});
            this.menuItem2.Text = "Something";
            // 
            // menuItem7
            // 
            this.menuItem7.Index = 0;
            this.menuItem7.Text = "Another thing";
            // 
            // menuItem8
            // 
            this.menuItem8.Index = 1;
            this.menuItem8.Text = "Ect";
            // 
            // menuItem3
            // 
            this.menuItem3.Index = 1;
            this.menuItem3.Text = "Something else";
            // 
            // menuItem4
            // 
            this.menuItem4.Index = 2;
            this.menuItem4.Text = "A third thing";
            // 
            // menuItem5
            // 
            this.menuItem5.Index = 1;
            this.menuItem5.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
            this.menuItem6});
            this.menuItem5.Text = "Example 2";
            // 
            // menuItem6
            // 
            this.menuItem6.Index = 0;
            this.menuItem6.Text = "Blah";
            // 
            // someLaggyControl1
            // 
            this.someLaggyControl1.Laggyness = 1000;
            this.someLaggyControl1.Location = new System.Drawing.Point(12, 81);
            this.someLaggyControl1.Name = "someLaggyControl1";
            this.someLaggyControl1.Size = new System.Drawing.Size(268, 23);
            this.someLaggyControl1.TabIndex = 0;
            this.someLaggyControl1.Text = "someLaggyControl1";
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(292, 253);
            this.Controls.Add(this.someLaggyControl1);
            this.Menu = this.MainMenu1;
            this.Name = "Form1";
            this.Text = "Form1";
            this.ResumeLayout(false);

        }

        #endregion

        private System.Windows.Forms.MainMenu MainMenu1;
        private System.Windows.Forms.MenuItem menuItem1;
        private System.Windows.Forms.MenuItem menuItem2;
        private System.Windows.Forms.MenuItem menuItem3;
        private System.Windows.Forms.MenuItem menuItem4;
        private System.Windows.Forms.MenuItem menuItem5;
        private System.Windows.Forms.MenuItem menuItem6;
        private System.Windows.Forms.MenuItem menuItem7;
        private System.Windows.Forms.MenuItem menuItem8;
        private SomeLaggyControl someLaggyControl1;
    }
}

SomeLaggyControl.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Drawing;

namespace MainMenuMCVE
{
    class SomeLaggyControl : Control
    {
        public int Laggyness { get; set; }

        protected override void OnPaint(PaintEventArgs e) {
            e.Graphics.DrawString("A laggy control that takes " + Laggyness + " ms to render", this.Font, Brushes.Black, 0, 0);
            System.Threading.Thread.Sleep(Laggyness);
            base.OnPaint(e);
        }
    }
}

Form1.cs的

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace MainMenuMCVE
{
    public partial class Form1 : Form
    {
        public Form1() {
            InitializeComponent();
        }
    }
}

的Program.cs:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;

namespace MainMenuMCVE
{
    static class Program
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main() {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }
    }
}

这个关键部分是一个表单Form1,其中包含一个MainMenu,其中包含MenuItem个,其中一个包含多个子MenuItem个。它还包含SomeLaggyControl,它当然用作示例。 SomeLaggyControl需要1秒才能渲染,并用于模拟一堆控件,以便示例不会变得混乱。

每当我运行该程序时,Form1的大小都会缩小。我可能需要对表单进行更改以使其缩小(例如,移动someLaggyControl1),或者我可能不会;我相信这必须处理设计师生成新代码。无论如何,这会导致缩小形式。

这里有一些照片显示了这一点:

  

The original appearance of the form, before building, with a size of 300 by 300.
  表单的原始外观,在构建之前,大小为300 x 300。

  

After the first rebuild.  It's not obvious, but the size is now 300 by 280.  Check the scroll bar.
  第一次重建后。它并不明显,但现在尺寸为300乘280.检查滚动条。

  

After a second rebuild.  The form is now 300 by 260, and it's more obvious.
  经过第二次重建。表格现在是300乘260,而且更明显。

  

After a third rebuild.  Now that it's 300 by 240, the form is getting small.
  经过第三次重建。现在它是300到240,表格变得越来越小。

  

After several more rebuilds, I am left with this pleasant 300 by 47 form.
The form is unable to shrink anymore (though it tries).
  经过几次重建之后,我留下了这款易于使用的300 x 47表格。表单无法再缩小(尽管它会尝试)。


我的主要问题是:如何阻止我的表单调整大小(除了切换到MenuStrip)?我也对为什么会发生这种情况感兴趣,但这并不太重要。

2 个答案:

答案 0 :(得分:2)

当使用设计器时,当菜单系统附加到其Menu属性时,该菜单系统内置了一些内容,它会增加窗体大小。

对于解决方法,请进入Designer.cs文件,注释掉这一行:

// this.Menu = this.MainMenu1;

然后,在OnLoad覆盖中,重新附加它:

protected override void OnLoad(EventArgs e) {
  base.OnLoad(e);
  this.Menu = MainMenu1;
}

除非您从表单区域下方的组件栏中选择菜单,否则菜单在设计器中不可见。您会注意到表单上的菜单可见,当菜单可见时,您的表单大小将暂时增加。这似乎可以防止你的表单总是自己调整大小。

答案 1 :(得分:0)

您可以尝试将minimumSize设置为您希望表单的大小相同。因此,表单永远不会小于那个,但可以达到它需要的大。因此,如果您需要300,300的表格,也将最小尺寸更改为300,300。