叨叨一下vs2005 winform 窗体上所有控件突然消失的问题

 症状:窗体关闭时或者窗体代码确定没有被自己主动修改或者丢失(比如剪切,删除)的状况下,再打开这个窗体发现窗体上所有控件全部消失,窗体变成初始化时大小,但后台逻辑代码都还在.

 

事件发生规律:无规律.........出现过好几次,新系统老系统都有

 

分析给解决办法:

在百度里搜索"vs2005 winform 所有控件突然消失"也会出现一些解决办法,但是没有符合我的这种情况的,但大家一致都认为在*.Designer.cs里的代码因为vs的bug出现了丢失现象,下面把我当时的代码贴出来(节选)

/// <summary> /// 设计器支持所需的方法 - 不要 /// 使用代码编辑器修改此方法的内容。 /// </summary> private void InitializeComponent() { this.menuStrip1 = new System.Windows.Forms.MenuStrip(); this.系统维护ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem(); this.替换数据库ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem(); this.toolStripMenuItem2 = new System.Windows.Forms.ToolStripSeparator(); this.重新登录ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem(); this.退出系统ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem(); this.基础维护ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem(); this.toolStrip1 = new System.Windows.Forms.ToolStrip(); this.toolStripButton1 = new System.Windows.Forms.ToolStripButton(); this.toolStripButton3 = new System.Windows.Forms.ToolStripButton(); this.toolStripButton2 = new System.Windows.Forms.ToolStripButton(); this.toolStripButton4 = new System.Windows.Forms.ToolStripButton(); this.menuStrip1.SuspendLayout(); this.toolStrip1.SuspendLayout(); this.SuspendLayout(); // // menuStrip1 // this.menuStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] { this.系统维护ToolStripMenuItem, this.基础维护ToolStripMenuItem, this.号码统计分析ToolStripMenuItem}); this.menuStrip1.Location = new System.Drawing.Point(0, 0); this.menuStrip1.Name = "menuStrip1"; this.menuStrip1.Size = new System.Drawing.Size(794, 24); this.menuStrip1.TabIndex = 6; this.menuStrip1.Text = "menuStrip1"; ............ // // toolStripButton4 // this.toolStripButton4.ImageTransparentColor = System.Drawing.Color.Magenta; this.toolStripButton4.Name = "toolStripButton4"; this.toolStripButton4.Size = new System.Drawing.Size(57, 57); this.toolStripButton4.Text = "退出系统"; // // Main // this.ClientSize = new System.Drawing.Size(292, 266); this.Name = "Main"; this.Load += new System.EventHandler(this.Main_Load_1); this.menuStrip1.ResumeLayout(false); this.menuStrip1.PerformLayout(); this.toolStrip1.ResumeLayout(false); this.toolStrip1.PerformLayout(); this.ResumeLayout(false); }

先看Main里面的,很显然,少了很多代码,问题就出现在这了,下面是我修改了以后的代码

// // Main // this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F); this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; this.BackColor = System.Drawing.Color.LightSteelBlue; this.ClientSize = new System.Drawing.Size(944, 568); this.Controls.Add(this.toolStrip1); this.Controls.Add(this.menuStrip1); this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog; this.IsMdiContainer = true; this.MainMenuStrip = this.menuStrip1; this.Name = "Main"; this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen; this.Text = "LED电子屏施工配件单"; this.Load += new System.EventHandler(this.Main_Load); this.menuStrip1.ResumeLayout(false); this.menuStrip1.PerformLayout(); this.toolStrip1.ResumeLayout(false); this.toolStrip1.PerformLayout(); this.ResumeLayout(false); this.PerformLayout();

比较一下,就发现以下代码没了

            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.BackColor = System.Drawing.Color.LightSteelBlue;
            this.Controls.Add(this.toolStrip1);
            this.Controls.Add(this.menuStrip1);
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
            this.IsMdiContainer = true;
            this.MainMenuStrip = this.menuStrip1;
            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
            this.Text = "LED电子屏施工配件单";

其实最重要的是这" this.Controls.Add(this.toolStrip1); this.Controls.Add(this.menuStrip1);"两句没了.

另外toolStripButton4里也少了一句"this.toolStripButton4.Click += new System.EventHandler(this.toolStripButton4_Click);",就是说控件的Click事件没了,挨个的给每个控件加Click事件也不是件轻松的事情............

总结:vs2005的bug...........

这段事件光做web开发了,没想到cs下还有这么多bug,以后慢慢整理吧