設置當子窗體的的大小小於主窗體時，自動調整大小

設置當子窗體的的大小小於主窗體時，自動調整大小

    //soctt 20070827 窗體大小改變事件
    this.SizeChanged += new EventHandler(FMzMain_SizeChanged);

       /// <summary>
        /// soctt 200070827
        /// 使子窗體自動調整
       /// </summary>
       /// <param name="sender"></param>
       /// <param name="e"></param>
        void FMzMain_SizeChanged(object sender, EventArgs e)
        {      
            //判斷是否有子窗體及窗體狀態變成正常
            if (this.MdiChildren.Length > 0 && this.WindowState== FormWindowState.Normal)
            {
                //定議窗體數量的變量
                int iCurrMdiNumber = 1;
                //設置窗體的初始位置
                Point ptLocation = new Point(0, 0);
                foreach (Form fmChild in this.MdiChildren)
                {
                    //判斷是否是活動子窗體
                    if (fmChild == this.ActiveMdiChild)                   
                    {
                        //當為活動窗體時，位置為(0,0)
                        ptLocation = new Point(0, 0);
                        //fmChild.Location = this.CenterToParent;
                    }
                    else
                    {
                        //變更子窗體的位置
                        ptLocation.X = iCurrMdiNumber*25;
                        ptLocation.Y= iCurrMdiNumber*25;
                    }
                    //判斷窗體的寬度是否小於主窗體
                    //ClientSize：取得表單工作區大小
                    if (fmChild.Size.Width >= this.ClientSize.Width-10 && fmChild.Size.Height <=this.ClientSize.Height- 80)
                    {    
                        //設置窗體的位置
                        fmChild.Location = ptLocation;   
                        //變更窗體的大小                
                        fmChild.Size = new Size(this.ClientSize.Width - 10, fmChild.Size.Height);
                        //變更變量，用於改變窗體位置
                        iCurrMdiNumber++;      
                    }
                    //判斷窗體的高度是否小於主窗體的高度
                    if (fmChild.Size.Height >= this.ClientSize.Height - 80 && fmChild.Size.Width <= this.ClientSize.Width - 10)
                    {                            
                        fmChild.Location = ptLocation;
                        fmChild.Size = new Size(fmChild.Size.Width, this.ClientSize.Height - 80);
                        iCurrMdiNumber++;                       
                    }
                    //判斷窗體的高度，寬度是否都小於主窗體
                    if (fmChild.Size.Width >= this.ClientSize.Width - 10 && fmChild.Size.Height >= this.ClientSize.Height - 80)
                    {                       
                        fmChild.Location = ptLocation;
                        fmChild.Size = new Size(this.ClientSize.Width - 10, this.ClientSize.Height - 80);
                        //fmChild.Size = new Size(this.Size.Width - 30, fmChild.Size.Height - 125);
                        iCurrMdiNumber++;           
                    }
                    //設置子窗體最小大小
                    fmChild.MinimumSize = new Size(550, 400);
                }
            } 
        }