splitter如何分隔上下两个PANEL？

this.panel1 = new System.Windows.Forms.Panel();
            this.panel2 = new System.Windows.Forms.Panel();
            this.splitter1 = new System.Windows.Forms.Splitter();
            this.SuspendLayout();
            // 
            // panel1
            // 
            this.panel1.BackColor = System.Drawing.SystemColors.ActiveCaption;
            this.panel1.Dock = System.Windows.Forms.DockStyle.Fill;
            this.panel1.ForeColor = System.Drawing.SystemColors.GradientActiveCaption;
            this.panel1.Location = new System.Drawing.Point(0, 0);
            this.panel1.Name = "panel1";
            this.panel1.Size = new System.Drawing.Size(522, 558);
            this.panel1.TabIndex = 0;
            // 
            // panel2
            // 
            this.panel2.Dock = System.Windows.Forms.DockStyle.Bottom;
            this.panel2.Location = new System.Drawing.Point(0, 458);
            this.panel2.Name = "panel2";
            this.panel2.Size = new System.Drawing.Size(522, 100);
            this.panel2.TabIndex = 1;
            // 
            // splitter1
            // 
            this.splitter1.Dock = System.Windows.Forms.DockStyle.Bottom;
            this.splitter1.Location = new System.Drawing.Point(0, 455);
            this.splitter1.Name = "splitter1";
            this.splitter1.Size = new System.Drawing.Size(522, 3);
            this.splitter1.TabIndex = 2;
            this.splitter1.TabStop = false;
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F); 
 
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(522, 558);
            this.Controls.Add(this.splitter1);
            this.Controls.Add(this.panel2);
            this.Controls.Add(this.panel1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.ResumeLayout(false);

        }

        #endregion

        private System.Windows.Forms.Panel panel1;
        private System.Windows.Forms.Panel panel2;
        private System.Windows.Forms.Splitter splitter1;

本来设想是，splitter1把上下两个PANEL隔开，现实这样设置是，PANEL1占据了整个FORM，只是下部分被PANEL2遮住不显示而已，如果 this.panel1.Dock = System.Windows.Forms.DockStyle.Top; this.panel2.Dock = System.Windows.Forms.DockStyle.Fill; this.splitter1.Dock = System.Windows.Forms.DockStyle.Top;则可以实现FORM被分开，但不理想的是我想让上面的PANEL随着FORM大小变化而变化，而不是下面这个PANEL



[解决办法]
panel2的dock设置bottom，panel1设置为fill