muti filter rule

.gitignore

@@ -28,6 +28,8 @@ Thumbs.db
 *.ide-wal
 *.dll
 *.suo
+*.dwl
+*.dwl2
 [Bb]in
 [Dd]ebug*/
 *.lib

Test/Selection/MergeSelection.cs

@@ -0,0 +1,76 @@
+using Autodesk.AutoCAD.ApplicationServices.Core;
+using Autodesk.AutoCAD.DatabaseServices;
+using Autodesk.AutoCAD.EditorInput;
+using Autodesk.AutoCAD.Runtime;
+
+namespace Test;
+
+public class MergeSelection
+{
+    [CommandMethod("MergeSelectionSets")]
+    public static void MergeSelectionSets()
+    {
+        // Get the current document editor
+        Editor acDocEd = Application.DocumentManager.MdiActiveDocument.Editor;
+        // Request for objects to be selected in the drawing area
+
+        PromptSelectionResult acSSPrompt;
+
+        acSSPrompt = acDocEd.GetSelection();
+        SelectionSet acSSet1;
+
+        ObjectIdCollection acObjIdColl = new ObjectIdCollection();
+        // If the prompt status is OK, objects were selected
+
+        if (acSSPrompt.Status == PromptStatus.OK)
+
+        {
+            // Get the selected objects
+
+            acSSet1 = acSSPrompt.Value;
+            // Append the selected objects to the ObjectIdCollection
+
+            acObjIdColl = new ObjectIdCollection(acSSet1.GetObjectIds());
+        }
+        // Request for objects to be selected in the drawing area
+
+        acSSPrompt = acDocEd.GetSelection();
+        SelectionSet acSSet2;
+
+
+        // If the prompt status is OK, objects were selected
+
+        if (acSSPrompt.Status == PromptStatus.OK)
+
+        {
+            acSSet2 = acSSPrompt.Value;
+
+
+            // Check the size of the ObjectIdCollection, if zero, then initialize it
+
+            if (acObjIdColl.Count == 0)
+
+            {
+                acObjIdColl = new ObjectIdCollection(acSSet2.GetObjectIds());
+            }
+
+            else
+
+            {
+                // Step through the second selection set
+
+                foreach (ObjectId acObjId in acSSet2.GetObjectIds())
+
+                {
+                    // Add each object id to the ObjectIdCollection
+
+                    acObjIdColl.Add(acObjId);
+                }
+            }
+        }
+
+
+        Application.ShowAlertDialog("Number of objects selected: " +
+                                    acObjIdColl.Count.ToString());
+    }
+}

Test/Selection/MultiFilterRule.cs

@@ -0,0 +1,50 @@
+using Autodesk.AutoCAD.ApplicationServices.Core;
+using Autodesk.AutoCAD.DatabaseServices;
+using Autodesk.AutoCAD.EditorInput;
+using Autodesk.AutoCAD.Runtime;
+
+namespace Test;
+
+public class MultiFilterRule
+{
+    [CommandMethod("FilterBlueCircleOnLayer0")]
+    public static void FilterBlueCircleOnLayer0()
+
+    {
+        // Get the current document editor
+
+        Editor acDocEd = Application.DocumentManager.MdiActiveDocument.Editor;
+        // Create a TypedValue array to define the filter criteria
+
+        TypedValue[] acTypValAr = new TypedValue[3];
+
+        acTypValAr.SetValue(new TypedValue((int) DxfCode.Color, 5), 0);
+
+        acTypValAr.SetValue(new TypedValue((int) DxfCode.Start, "CIRCLE"), 1);
+
+        acTypValAr.SetValue(new TypedValue((int) DxfCode.LayerName, "Layer2"), 2);
+
+
+        // Assign the filter criteria to a SelectionFilter object
+        SelectionFilter acSelFtr = new SelectionFilter(acTypValAr);
+        // Request for objects to be selected in the drawing area
+
+        PromptSelectionResult acSSPrompt;
+
+        acSSPrompt = acDocEd.GetSelection(acSelFtr);
+        // If the prompt status is OK, objects were selected
+
+        if (acSSPrompt.Status == PromptStatus.OK)
+        {
+            SelectionSet acSSet = acSSPrompt.Value;
+            Application.ShowAlertDialog("Number of objects selected: " +
+                                        acSSet.Count.ToString());
+        }
+
+        else
+
+        {
+            Application.ShowAlertDialog("Number of objects selected: 0");
+        }
+    }
+}

Test/Selection/SelectionFilters.cs

@@ -0,0 +1,46 @@
+using Autodesk.AutoCAD.ApplicationServices.Core;
+using Autodesk.AutoCAD.DatabaseServices;
+using Autodesk.AutoCAD.EditorInput;
+using Autodesk.AutoCAD.Runtime;
+
+namespace Test;
+
+public class SelectionFilters
+{
+    [CommandMethod("FilterSelectionSet")]
+    public static void FilterSelectionSet()
+
+    {
+        // Get the current document editor
+
+        Editor acDocEd = Application.DocumentManager.MdiActiveDocument.Editor;
+        // Create a TypedValue array to define the filter criteria
+
+        TypedValue[] acTypValAr = new TypedValue[1];
+
+        acTypValAr.SetValue(new TypedValue((int) DxfCode.Start, "CIRCLE"), 0);
+        // Assign the filter criteria to a SelectionFilter object
+
+        SelectionFilter acSelFtr = new SelectionFilter(acTypValAr);
+        // Request for objects to be selected in the drawing area
+
+        PromptSelectionResult acSSPrompt;
+
+        acSSPrompt = acDocEd.GetSelection(acSelFtr);
+
+
+        // If the prompt status is OK, objects were selected
+
+        if (acSSPrompt.Status == PromptStatus.OK)
+
+        {
+            SelectionSet acSSet = acSSPrompt.Value;
+
+            Application.ShowAlertDialog("Number of objects selected: " + acSSet.Count.ToString());
+        }
+        else
+        {
+            Application.ShowAlertDialog("Number of objects selected: 0");
+        }
+    }
+}