功能调整

Work/Extension/ControlExtension.cs

@@ -0,0 +1,62 @@
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace Work.Extension
+{
+    public static class ControlExtension
+    {
+        public static Point GetRelativePosition(this Control control, Form form)
+        {
+            Point location = control.Location;
+            Control parent = control.Parent;
+            while (parent != null && parent != form)
+            {
+                location.X += parent.Location.X;
+                location.Y += parent.Location.Y;
+                parent = parent.Parent;
+            }
+            return location;
+        }
+        public static Point GetRelativePosition(this Control control, Control parentControl)
+        {
+            if (control == null || parentControl == null)
+                return new Point(0, 0);
+
+            Point location = control.Location;
+            Control parent = control.Parent;
+            while (parent != null && parent != parentControl)
+            {
+                location.X += parent.Location.X;
+                location.Y += parent.Location.Y;
+                parent = parent.Parent;
+            }
+            return location;
+        }
+        public static Point GetRelativePosition(this Control control)
+        {
+            Point location = control.Location;
+            Control parent = control.Parent;
+            while (parent != null && !(parent is Form))
+            {
+                location.X += parent.Location.X;
+                location.Y += parent.Location.Y;
+                parent = parent.Parent;
+            }
+            return location;
+        }
+        public static Control GetParentNotTable(this Control contorl)
+        {
+            Control parent = contorl.Parent;
+            while (parent != null && (parent is TableLayoutPanel || parent is FlowLayoutPanel))
+            {
+                parent = parent.Parent;
+            }
+            return parent;
+        }
+    }
+}