Index: Ringtoets/Integration/src/Ringtoets.Integration.Forms/Merge/AssessmentSectionMergeDataProviderDialog.Designer.cs
===================================================================
diff -u -r0a19bd6e95e67b0987358593c7ea95d6c1dea87b -r2daae64ca8481053f77ba2b8142ed6cf5d78bea3
--- Ringtoets/Integration/src/Ringtoets.Integration.Forms/Merge/AssessmentSectionMergeDataProviderDialog.Designer.cs	(.../AssessmentSectionMergeDataProviderDialog.Designer.cs)	(revision 0a19bd6e95e67b0987358593c7ea95d6c1dea87b)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Forms/Merge/AssessmentSectionMergeDataProviderDialog.Designer.cs	(.../AssessmentSectionMergeDataProviderDialog.Designer.cs)	(revision 2daae64ca8481053f77ba2b8142ed6cf5d78bea3)
@@ -30,19 +30,6 @@
         /// </summary>
         private System.ComponentModel.IContainer components = null;
 
-        /// <summary>
-        /// Clean up any resources being used.
-        /// </summary>
-        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
-        protected override void Dispose(bool disposing)
-        {
-            if (disposing && (components != null))
-            {
-                components.Dispose();
-            }
-            base.Dispose(disposing);
-        }
-
         #region Windows Form Designer generated code
 
         /// <summary>
Index: Ringtoets/Integration/src/Ringtoets.Integration.Forms/Merge/AssessmentSectionMergeDataProviderDialog.cs
===================================================================
diff -u -r0a19bd6e95e67b0987358593c7ea95d6c1dea87b -r2daae64ca8481053f77ba2b8142ed6cf5d78bea3
--- Ringtoets/Integration/src/Ringtoets.Integration.Forms/Merge/AssessmentSectionMergeDataProviderDialog.cs	(.../AssessmentSectionMergeDataProviderDialog.cs)	(revision 0a19bd6e95e67b0987358593c7ea95d6c1dea87b)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Forms/Merge/AssessmentSectionMergeDataProviderDialog.cs	(.../AssessmentSectionMergeDataProviderDialog.cs)	(revision 2daae64ca8481053f77ba2b8142ed6cf5d78bea3)
@@ -71,6 +71,19 @@
             return isDataSelected;
         }
 
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing)
+            {
+                components?.Dispose();
+            }
+
+            base.Dispose(disposing);
+
+            importButton.Click -= OnImportButtonClick;
+            assessmentSectionComboBox.SelectedIndexChanged -= AssessmentSectionComboBox_OnSelectedIndexChanged;
+        }
+
         protected override Button GetCancelButton()
         {
             return cancelButton;