R26_dev8 - First public commit

2026-05-15 09:14:54 +08:00 · 2017-09-21 20:33:05 +10:00
commit a8243c3e0e
391 changed files with 157678 additions and 0 deletions
@@ -0,0 +1,70 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace CodeWalker.WinForms
+{
+    public partial class ReadOnlyPropertyGrid : PropertyGridFix
+    {
+        public ReadOnlyPropertyGrid()
+        {
+            InitializeComponent();
+        }
+
+        protected override void OnPaint(PaintEventArgs pe)
+        {
+            base.OnPaint(pe);
+        }
+
+
+
+        private bool _readOnly = true;
+        public bool ReadOnly
+        {
+            get { return _readOnly; }
+            set
+            {
+                _readOnly = value;
+                SetObjectAsReadOnly(SelectedObject, _readOnly);
+            }
+        }
+
+        private TypeDescriptionProvider provider = null;
+        private object providedObject = null;
+
+        protected override void OnSelectedObjectsChanged(EventArgs e)
+        {
+            if (providedObject != null)
+            {
+                SetObjectAsReadOnly(providedObject, false);
+            }
+            SetObjectAsReadOnly(SelectedObject, _readOnly);
+            base.OnSelectedObjectsChanged(e);
+        }
+
+        private void SetObjectAsReadOnly(object selectedObject, bool isReadOnly)
+        {
+            if (SelectedObject != null)
+            {
+                if (isReadOnly)
+                {
+                    provider = TypeDescriptor.AddAttributes(SelectedObject, new Attribute[] { new ReadOnlyAttribute(_readOnly) });
+                    providedObject = SelectedObject;
+                }
+                else if (provider != null)
+                {
+                    TypeDescriptor.RemoveProvider(provider, this.SelectedObject);
+                    provider = null;
+                    providedObject = null;
+                }
+                Refresh();
+            }
+        }
+    }
+}