Index: Ringtoets/Integration/src/Ringtoets.Integration.Forms/Merge/AssessmentSectionMergeDataProviderDialog.Designer.cs
===================================================================
diff -u -r2daae64ca8481053f77ba2b8142ed6cf5d78bea3 -r1c8c4b362a5a8f830f9d5ffd9d05a6739d692e13
--- Ringtoets/Integration/src/Ringtoets.Integration.Forms/Merge/AssessmentSectionMergeDataProviderDialog.Designer.cs	(.../AssessmentSectionMergeDataProviderDialog.Designer.cs)	(revision 2daae64ca8481053f77ba2b8142ed6cf5d78bea3)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Forms/Merge/AssessmentSectionMergeDataProviderDialog.Designer.cs	(.../AssessmentSectionMergeDataProviderDialog.Designer.cs)	(revision 1c8c4b362a5a8f830f9d5ffd9d05a6739d692e13)
@@ -120,12 +120,14 @@
             // cancelButton
             // 
             resources.ApplyResources(this.cancelButton, "cancelButton");
+            this.cancelButton.DialogResult = DialogResult.Cancel;
             this.cancelButton.Name = "cancelButton";
             this.cancelButton.UseVisualStyleBackColor = true;
             // 
             // importButton
             // 
             resources.ApplyResources(this.importButton, "importButton");
+            this.importButton.DialogResult = DialogResult.OK;
             this.importButton.Name = "importButton";
             this.importButton.UseVisualStyleBackColor = true;
             this.importButton.Click += new System.EventHandler(this.OnImportButtonClick);
Index: Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/Merge/AssessmentSectionMergeDataProviderDialogTest.cs
===================================================================
diff -u -r469c1810a2cc836791b78d185c7c1b0d414ec472 -r1c8c4b362a5a8f830f9d5ffd9d05a6739d692e13
--- Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/Merge/AssessmentSectionMergeDataProviderDialogTest.cs	(.../AssessmentSectionMergeDataProviderDialogTest.cs)	(revision 469c1810a2cc836791b78d185c7c1b0d414ec472)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/Merge/AssessmentSectionMergeDataProviderDialogTest.cs	(.../AssessmentSectionMergeDataProviderDialogTest.cs)	(revision 1c8c4b362a5a8f830f9d5ffd9d05a6739d692e13)
@@ -155,10 +155,12 @@
                 var buttonSelect = (Button) new ButtonTester("importButton", dialog).TheObject;
                 Assert.AreEqual("Importeren", buttonSelect.Text);
                 Assert.IsTrue(buttonSelect.Enabled);
+                Assert.AreEqual(DialogResult.OK, buttonSelect.DialogResult);
 
                 var buttonCancel = (Button) new ButtonTester("cancelButton", dialog).TheObject;
                 Assert.AreEqual("Annuleren", buttonCancel.Text);
                 Assert.AreEqual(dialog.CancelButton, buttonCancel);
+                Assert.AreEqual(DialogResult.Cancel, buttonCancel.DialogResult);
 
                 Assert.AreEqual(720, dialog.MinimumSize.Width);
                 Assert.AreEqual(590, dialog.MinimumSize.Height);