Index: Ringtoets/Common/src/Ringtoets.Common.Forms/Controls/FailureMechanismAssemblyResultControl.cs
===================================================================
diff -u -r9c341ce32f55de21dcc7ab33717e1750c437fb0e -re066f6fce8df4604082ede0fcd13921a8d66c560
--- Ringtoets/Common/src/Ringtoets.Common.Forms/Controls/FailureMechanismAssemblyResultControl.cs	(.../FailureMechanismAssemblyResultControl.cs)	(revision 9c341ce32f55de21dcc7ab33717e1750c437fb0e)
+++ Ringtoets/Common/src/Ringtoets.Common.Forms/Controls/FailureMechanismAssemblyResultControl.cs	(.../FailureMechanismAssemblyResultControl.cs)	(revision e066f6fce8df4604082ede0fcd13921a8d66c560)
@@ -19,6 +19,7 @@
 // Stichting Deltares and remain full property of Stichting Deltares at all times.
 // All rights reserved.
 
+using System;
 using System.Windows.Forms;
 
 namespace Ringtoets.Common.Forms.Controls
@@ -35,5 +36,20 @@
         {
             InitializeComponent();
         }
+
+        public void ClearError()
+        {
+            ErrorProvider.SetError(this, string.Empty);
+        }
+
+        public void SetError(string error)
+        {
+            if (error == null)
+            {
+                throw new ArgumentNullException(nameof(error));
+            }
+
+            ErrorProvider.SetError(this, error);
+        }
     }
 }
\ No newline at end of file