Index: Ringtoets/Integration/src/Ringtoets.Integration.Forms/Properties/Resources.Designer.cs
===================================================================
diff -u -r026b09ff792545d0093e6d58d7daea0fe3c8269f -r84a764ce59a1d2f2083cf7ebc4303da4f1cdccfb
--- Ringtoets/Integration/src/Ringtoets.Integration.Forms/Properties/Resources.Designer.cs	(.../Resources.Designer.cs)	(revision 026b09ff792545d0093e6d58d7daea0fe3c8269f)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Forms/Properties/Resources.Designer.cs	(.../Resources.Designer.cs)	(revision 84a764ce59a1d2f2083cf7ebc4303da4f1cdccfb)
@@ -166,6 +166,15 @@
         }
         
         /// <summary>
+        ///   Looks up a localized string similar to Assemblageresultaat verversen.
+        /// </summary>
+        public static string AssemblyResultTotalView_RefreshAssemblyResultsButton_Text {
+            get {
+                return ResourceManager.GetString("AssemblyResultTotalView_RefreshAssemblyResultsButton_Text", resourceCulture);
+            }
+        }
+        
+        /// <summary>
         ///   Looks up a localized string similar to ID van het traject..
         /// </summary>
         public static string AssessmentSection_Id_Description {
Index: Ringtoets/Integration/src/Ringtoets.Integration.Forms/Properties/Resources.resx
===================================================================
diff -u -r026b09ff792545d0093e6d58d7daea0fe3c8269f -r84a764ce59a1d2f2083cf7ebc4303da4f1cdccfb
--- Ringtoets/Integration/src/Ringtoets.Integration.Forms/Properties/Resources.resx	(.../Resources.resx)	(revision 026b09ff792545d0093e6d58d7daea0fe3c8269f)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Forms/Properties/Resources.resx	(.../Resources.resx)	(revision 84a764ce59a1d2f2083cf7ebc4303da4f1cdccfb)
@@ -381,4 +381,7 @@
   <data name="AssemblyResultTotalView_Probability_DisplayName" xml:space="preserve">
     <value>Benaderde faalkans</value>
   </data>
+  <data name="AssemblyResultTotalView_RefreshAssemblyResultsButton_Text" xml:space="preserve">
+    <value>Assemblageresultaat verversen</value>
+  </data>
 </root>
\ No newline at end of file
Index: Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/AssemblyResultTotalView.Designer.cs
===================================================================
diff -u -r57517bf1c8e4d95cdd1d1e871891995c16cf94ea -r84a764ce59a1d2f2083cf7ebc4303da4f1cdccfb
--- Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/AssemblyResultTotalView.Designer.cs	(.../AssemblyResultTotalView.Designer.cs)	(revision 57517bf1c8e4d95cdd1d1e871891995c16cf94ea)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/AssemblyResultTotalView.Designer.cs	(.../AssemblyResultTotalView.Designer.cs)	(revision 84a764ce59a1d2f2083cf7ebc4303da4f1cdccfb)
@@ -50,31 +50,60 @@
         private void InitializeComponent()
         {
             this.dataGridViewControl = new Core.Common.Controls.DataGrid.DataGridViewControl();
+            this.RefreshAssemblyResultsButton = new System.Windows.Forms.Button();
+            this.buttonGroupBox = new System.Windows.Forms.GroupBox();
+            this.buttonGroupBox.SuspendLayout();
             this.SuspendLayout();
             // 
             // dataGridViewControl
             // 
             this.dataGridViewControl.Dock = System.Windows.Forms.DockStyle.Fill;
-            this.dataGridViewControl.Location = new System.Drawing.Point(0, 0);
-            this.dataGridViewControl.MultiSelect = false;
+            this.dataGridViewControl.Location = new System.Drawing.Point(0, 43);
+            this.dataGridViewControl.MultiSelect = true;
             this.dataGridViewControl.Name = "dataGridViewControl";
             this.dataGridViewControl.SelectionMode = System.Windows.Forms.DataGridViewSelectionMode.RowHeaderSelect;
-            this.dataGridViewControl.Size = new System.Drawing.Size(177, 202);
-            this.dataGridViewControl.TabIndex = 0;
+            this.dataGridViewControl.Size = new System.Drawing.Size(789, 373);
+            this.dataGridViewControl.TabIndex = 3;
             // 
-            // AssessmentSectionCombinedAssemblyResultView
+            // RefreshAssemblyResultsButton
             // 
+            this.RefreshAssemblyResultsButton.AutoSize = true;
+            this.RefreshAssemblyResultsButton.Location = new System.Drawing.Point(3, 14);
+            this.RefreshAssemblyResultsButton.Name = "RefreshAssemblyResultsButton";
+            this.RefreshAssemblyResultsButton.Size = new System.Drawing.Size(164, 23);
+            this.RefreshAssemblyResultsButton.TabIndex = 0;
+            this.RefreshAssemblyResultsButton.UseVisualStyleBackColor = true;
+            this.RefreshAssemblyResultsButton.Click += new System.EventHandler(this.RefreshAssemblyResults_Click);
+            // 
+            // buttonGroupBox
+            // 
+            this.buttonGroupBox.Controls.Add(this.RefreshAssemblyResultsButton);
+            this.buttonGroupBox.Dock = System.Windows.Forms.DockStyle.Top;
+            this.buttonGroupBox.Location = new System.Drawing.Point(0, 0);
+            this.buttonGroupBox.MinimumSize = new System.Drawing.Size(180, 43);
+            this.buttonGroupBox.Name = "buttonGroupBox";
+            this.buttonGroupBox.Size = new System.Drawing.Size(789, 43);
+            this.buttonGroupBox.TabIndex = 2;
+            this.buttonGroupBox.TabStop = false;
+            // 
+            // AssemblyResultTotalView
+            // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
             this.Controls.Add(this.dataGridViewControl);
+            this.Controls.Add(this.buttonGroupBox);
             this.Name = "AssemblyResultTotalView";
-            this.Size = new System.Drawing.Size(177, 202);
+            this.Size = new System.Drawing.Size(789, 416);
+            this.buttonGroupBox.ResumeLayout(false);
+            this.buttonGroupBox.PerformLayout();
             this.ResumeLayout(false);
 
         }
 
         #endregion
 
         private Core.Common.Controls.DataGrid.DataGridViewControl dataGridViewControl;
+        private System.Windows.Forms.Button RefreshAssemblyResultsButton;
+        private System.Windows.Forms.GroupBox buttonGroupBox;
     }
 }
Index: Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/AssemblyResultTotalView.cs
===================================================================
diff -u -r43ecbec68a9008d7aecbfd98b26947a0d3992ffd -r84a764ce59a1d2f2083cf7ebc4303da4f1cdccfb
--- Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/AssemblyResultTotalView.cs	(.../AssemblyResultTotalView.cs)	(revision 43ecbec68a9008d7aecbfd98b26947a0d3992ffd)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/AssemblyResultTotalView.cs	(.../AssemblyResultTotalView.cs)	(revision 84a764ce59a1d2f2083cf7ebc4303da4f1cdccfb)
@@ -23,6 +23,7 @@
 using System.Collections.Generic;
 using System.Windows.Forms;
 using Core.Common.Controls.Views;
+using Core.Common.Util.Extensions;
 using Ringtoets.AssemblyTool.Data;
 using Ringtoets.Integration.Data;
 using Ringtoets.Integration.Forms.Properties;
@@ -55,6 +56,7 @@
             AssessmentSection = assessmentSection;
 
             InitializeComponent();
+            LocalizeControl();
             InitializeDataGridView();
         }
 
@@ -65,6 +67,11 @@
 
         public object Data { get; set; }
 
+        private void LocalizeControl()
+        {
+            RefreshAssemblyResultsButton.Text = Resources.AssemblyResultTotalView_RefreshAssemblyResultsButton_Text;
+        }
+
         private void InitializeDataGridView()
         {
             dataGridViewControl.AddTextBoxColumn(nameof(FailureMechanismAssemblyResultRow.Name),
@@ -122,5 +129,11 @@
             var random = new Random();
             return new FailureMechanismAssembly(random.NextDouble(), FailureMechanismAssemblyCategoryGroup.IIIt);
         }
+
+        private void RefreshAssemblyResults_Click(object sender, EventArgs e)
+        {
+            assemblyResultRows.ForEachElementDo(row => row.Update());
+            dataGridViewControl.RefreshDataGridView();
+        }
     }
 }
\ No newline at end of file
Index: Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/Views/AssemblyResultTotalViewTest.cs
===================================================================
diff -u -r43ecbec68a9008d7aecbfd98b26947a0d3992ffd -r84a764ce59a1d2f2083cf7ebc4303da4f1cdccfb
--- Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/Views/AssemblyResultTotalViewTest.cs	(.../AssemblyResultTotalViewTest.cs)	(revision 43ecbec68a9008d7aecbfd98b26947a0d3992ffd)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/Views/AssemblyResultTotalViewTest.cs	(.../AssemblyResultTotalViewTest.cs)	(revision 84a764ce59a1d2f2083cf7ebc4303da4f1cdccfb)
@@ -93,8 +93,12 @@
                 testForm.Show();
 
                 // Assert
-                Assert.AreEqual(1, view.Controls.Count);
+                Assert.AreEqual(2, view.Controls.Count);
 
+                var button = (Button) new ControlTester("RefreshAssemblyResultsButton").TheObject;
+                Assert.AreEqual("Assemblageresultaat verversen", button.Text);
+                Assert.IsTrue(button.Enabled);
+
                 Assert.IsInstanceOf<IView>(view);
                 Assert.IsInstanceOf<UserControl>(view);
                 Assert.IsNull(view.Data);
@@ -211,6 +215,36 @@
             }
         }
 
+        [Test]
+        public void GivenAssemblyResultTotalView_WhenUpdateCalled_ThenDataGridViewInvalidated()
+        {
+            // Given
+            var random = new Random(21);
+            var assessmentSection = new AssessmentSection(random.NextEnumValue<AssessmentSectionComposition>());
+
+            // Then
+            using (var view = new AssemblyResultTotalView(assessmentSection))
+            {
+                testForm.Controls.Add(view);
+                testForm.Show();
+
+                var invalidated = false;
+                var dataGridView = (DataGridView) new ControlTester("dataGridView").TheObject;
+                dataGridView.Invalidated += (sender, args) => invalidated = true;
+
+                // Precondition
+                Assert.IsFalse(invalidated);
+
+                var buttonTester = new ButtonTester("RefreshAssemblyResultsButton", testForm);
+
+                // When
+                buttonTester.Click();
+
+                // Then
+                Assert.IsTrue(invalidated);
+            }
+        }
+
         private static void AssertAssemblyRow(IFailureMechanism failureMechanism, DataGridViewCellCollection row)
         {
             Assert.AreEqual(expectedColumnCount, row.Count);