C# WinForm 控件在窗体中动态居中 创建、删除控件及对其赋值

    一、 以lable为例：

 

        在Form中放一个控件，让其在启动和动态改变窗口大小时始终居中

 

            int gLeft = this.Width / 2 - lable1.Width / 2; //this指Form
            int gTop = this.Height / 2 - lable1.Height / 2;

            lable1.Location = new Point(gLeft, gTop);

 

   二、动态创建控件并找到或者删除控件

            1、 以Lable为例创建控件：

                        Label lbl = new Label();
                        lbl.Name = "lblNum" + m;
                        lbl.AutoSize = true;
                        lbl.BackColor = System.Drawing.Color.Transparent;
                        lbl.Font = new System.Drawing.Font("宋体", 36F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
                        lbl.ForeColor = System.Drawing.Color.White;
                        lbl.Location = new System.Drawing.Point(lable1.Location.X - 150, 29);
                        lbl.TextAlign = System.Drawing.ContentAlignment.TopCenter;
                        lbl.Anchor = System.Windows.Forms.AnchorStyles.Top;
                       // this.Controls.Add(lbl);窗体中添加控件
                        this.groupBox2.Controls.Add(lbl);//groupBox2中添加控件

              

            2、以Lable为例删除控件：

 

            if (this.groupBox2.Controls.ContainsKey("lable2") == true)
            {
                this.groupBox2.Controls.RemoveByKey("lable2");
            }

 

 

 

       3、找到控件并对其赋值

 

 

             Control[] control = this.Controls.Find("lable1" ，true);

             if (control.Length == 1 && control[0] is Label)
              {

                    (control[0] as Label).Text =“hello”；

              }