TableLayoutPanel可以在一个由行和列组成的网格中对其内容进行动态布局。FlowLayoutPanel表示一个沿着水平或垂直方向动态排放其内容的面板。
LayoutEngine提供用于实现布局引擎的基类。
using System; using System.Collections.Generic; using System.Drawing; using System.Text; using System.Windows.Forms; using System.Windows.Forms.Layout; // This class demonstrates a simple custom layout panel. // It overrides the LayoutEngine property of the Panel // control to provide a custom layout engine. public class DemoFlowPanel : Panel { private DemoFlowLayout layoutEngine; public DemoFlowPanel() { } public override LayoutEngine LayoutEngine { get { if (layoutEngine == null) { layoutEngine = new DemoFlowLayout(); } return layoutEngine; } } } // This class demonstrates a simple custom layout engine. public class DemoFlowLayout : LayoutEngine { public override bool Layout( object container, LayoutEventArgs layoutEventArgs) { Control parent = container as Control; // Use DisplayRectangle so that parent.Padding is honored. Rectangle parentDisplayRectangle = parent.DisplayRectangle; Point nextControlLocation = parentDisplayRectangle.Location; foreach (Control c in parent.Controls) { // Only apply layout to visible controls. if (!c.Visible) { continue; } // Respect the margin of the control: // shift over the left and the top. nextControlLocation.Offset(c.Margin.Left, c.Margin.Top); // Set the location of the control. c.Location = nextControlLocation; // Set the autosized controls to their // autosized heights. if (c.AutoSize) { c.Size = c.GetPreferredSize(parentDisplayRectangle.Size); } // Move X back to the display rectangle origin. nextControlLocation.X = parentDisplayRectangle.X; // Increment Y by the height of the control // and the bottom margin. nextControlLocation.Y += c.Height + c.Margin.Bottom; } // Optional: Return whether or not the container's // parent should perform layout as a result of this // layout. Some layout engines return the value of // the container's AutoSize property. return false; } }