隱形父項的子窗體永遠不會顯示？

Question

我有一個主窗體，它是不可見的，並在某個時候創建​​一個子窗體。那孩子的形式看起來像這樣designer.cs：

 this.listBox1 = new System.Windows.Forms.ListBox(); 
     this.SuspendLayout(); 
     // 
     // listBox1 
     // 
     this.listBox1.FormattingEnabled = true; 
     //this.listBox1.Location = new System.Drawing.Point(0, 0); 
     this.listBox1.Name = "listBox1"; 
     this.listBox1.Size = new System.Drawing.Size(255, 147); 
     this.listBox1.TabIndex = 0; 
     // 
     // Form2 
     // 
     this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F); 
     this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; 
     this.AutoSize = true; 
     this.AutoSizeMode = System.Windows.Forms.AutoSizeMode.GrowAndShrink; 
     this.ClientSize = new System.Drawing.Size(502, 384); 
     this.ControlBox = false; 
     this.Controls.Add(this.listBox1); 
     this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None; 
     this.Name = "Form2"; 
     this.Text = "Form2"; 

，並在主窗體我創建的窗體2如下：

Form2 a = new Form2(new Point(0, Screen.PrimaryScreen.WorkingArea.Height/2)); //This is the location 
         Thread thtt = new Thread((ThreadStart)delegate() 
          { 
           a.CreateControl(); 
           a.Show(); 
           TimeSpan slept = TimeSpan.Zero; 
           while (!a.Created && slept < TimeSpan.FromMilliseconds(2000)) 
           { 
            Thread.Sleep(99); 
            slept += TimeSpan.FromMilliseconds(99); 
           } 
           if (!a.Created) 
           { 
            MessageBox.Show("after 2 sec no creation?"); 
            System.Diagnostics.Debugger.Break(); 
           } 
           else 
           { 
            //a.Show(); 
            a.Invoke((MethodInvoker)delegate() 
            { 

             a.TopMost = true; 
             a.Location = new Point(0, Screen.PrimaryScreen.WorkingArea.Height/2); 
             Cursor.Position = new Point(a.Location.X + 10, a.Location.Y + 10); 
             a.AddAndAct(minimized); 

            }); 
           } 
           aa = a; 
          }); 
         thtt.IsBackground = true; 
         thtt.Start(); 

我現在遇到的問題是，該窗體2實際上是在閃爍，但後來神奇地消失了。任何建議appriciated。

謝謝諮詢，亞歷克斯

Answer 1

亞歷克斯 - 我想這是你的問題：

How to create a form on its own thread and keep it open throughout application lifetime

接受的答案是非常真實的，因爲我用它在我的應用程序爲好，並有忘了它。 =）

「您需要在新創建的線程上啓動一個消息循環，可以通過調用Application.Run（form）來完成。」