Index: Ringtoets/Integration/src/Ringtoets.Integration.Forms/Properties/Resources.Designer.cs
===================================================================
diff -u -rb6d263f3f919ce64e84f4031b94a19e0995f202c -r47134c6560c0c969c184ab3bd3157fb06fb4d120
--- Ringtoets/Integration/src/Ringtoets.Integration.Forms/Properties/Resources.Designer.cs	(.../Resources.Designer.cs)	(revision b6d263f3f919ce64e84f4031b94a19e0995f202c)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Forms/Properties/Resources.Designer.cs	(.../Resources.Designer.cs)	(revision 47134c6560c0c969c184ab3bd3157fb06fb4d120)
@@ -99,7 +99,7 @@
         }
         
         /// <summary>
-        ///   Looks up a localized string similar to Id.
+        ///   Looks up a localized string similar to ID.
         /// </summary>
         public static string AssessmentSection_Id_DisplayName {
             get {
@@ -512,7 +512,7 @@
         }
         
         /// <summary>
-        ///   Looks up a localized string similar to Identificatiecode.
+        ///   Looks up a localized string similar to Traject ID.
         /// </summary>
         public static string ReferenceLineMetaSelectionDialog_ColumnHeader_AssessmentSectionId {
             get {
@@ -584,6 +584,15 @@
         }
         
         /// <summary>
+        ///   Looks up a localized string similar to Traject toevoegen.
+        /// </summary>
+        public static string RingtoetsRibbon_AddAssessmentSection {
+            get {
+                return ResourceManager.GetString("RingtoetsRibbon_AddAssessmentSection", resourceCulture);
+            }
+        }
+        
+        /// <summary>
         ///   Looks up a localized string similar to Hydraulische randvoorwaardendatabase.
         /// </summary>
         public static string SelectHydraulicBoundaryDatabaseFile_FilterName {
Index: Ringtoets/Integration/src/Ringtoets.Integration.Forms/Properties/Resources.resx
===================================================================
diff -u -rb6d263f3f919ce64e84f4031b94a19e0995f202c -r47134c6560c0c969c184ab3bd3157fb06fb4d120
--- Ringtoets/Integration/src/Ringtoets.Integration.Forms/Properties/Resources.resx	(.../Resources.resx)	(revision b6d263f3f919ce64e84f4031b94a19e0995f202c)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Forms/Properties/Resources.resx	(.../Resources.resx)	(revision 47134c6560c0c969c184ab3bd3157fb06fb4d120)
@@ -252,13 +252,13 @@
     <value>Id van het traject.</value>
   </data>
   <data name="AssessmentSection_Id_DisplayName" xml:space="preserve">
-    <value>Id</value>
+    <value>ID</value>
   </data>
   <data name="ReferenceLineMetaSelectionDialog_ColumnHeader_SignalingValue" xml:space="preserve">
     <value>Signaleringswaarde</value>
   </data>
   <data name="ReferenceLineMetaSelectionDialog_ColumnHeader_AssessmentSectionId" xml:space="preserve">
-    <value>Identificatiecode</value>
+    <value>Traject ID</value>
   </data>
   <data name="ReferenceLineMetaSelectionDialog_ColumnHeader_LowerLimitValue" xml:space="preserve">
     <value>Ondergrens</value>
@@ -296,4 +296,7 @@
   <data name="AddAssessmentSectionFolderIcon" type="System.Resources.ResXFileRef, System.Windows.Forms">
     <value>..\Resources\AddFolder-stand.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
   </data>
+  <data name="RingtoetsRibbon_AddAssessmentSection" xml:space="preserve">
+    <value>Traject toevoegen</value>
+  </data>
 </root>
\ No newline at end of file
Index: Ringtoets/Integration/src/Ringtoets.Integration.Forms/ReferenceLineMetaSelectionDialog.cs
===================================================================
diff -u -r04e456a3c39bc3a6e9c4cba357964aa9c83f258c -r47134c6560c0c969c184ab3bd3157fb06fb4d120
--- Ringtoets/Integration/src/Ringtoets.Integration.Forms/ReferenceLineMetaSelectionDialog.cs	(.../ReferenceLineMetaSelectionDialog.cs)	(revision 04e456a3c39bc3a6e9c4cba357964aa9c83f258c)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Forms/ReferenceLineMetaSelectionDialog.cs	(.../ReferenceLineMetaSelectionDialog.cs)	(revision 47134c6560c0c969c184ab3bd3157fb06fb4d120)
@@ -21,11 +21,12 @@
 
 using System;
 using System.Collections.Generic;
+using System.Globalization;
 using System.Linq;
+using System.Text.RegularExpressions;
 using System.Windows.Forms;
 using Core.Common.Controls.DataGrid;
 using Core.Common.Controls.Dialogs;
-using Core.Common.Utils.Reflection;
 using Ringtoets.Common.Data.AssessmentSection;
 using Ringtoets.Integration.Forms.Properties;
 using CommonFormsResources = Ringtoets.Common.Forms.Properties.Resources;
@@ -85,7 +86,9 @@
             ReferenceLineMetaDataGridViewControl.AddTextBoxColumn("AssessmentSectionId", Resources.ReferenceLineMetaSelectionDialog_ColumnHeader_AssessmentSectionId);
             ReferenceLineMetaDataGridViewControl.AddTextBoxColumn("SignalingValue", Resources.ReferenceLineMetaSelectionDialog_ColumnHeader_SignalingValue);
             ReferenceLineMetaDataGridViewControl.AddTextBoxColumn("LowerLimitValue", Resources.ReferenceLineMetaSelectionDialog_ColumnHeader_LowerLimitValue);
-            ReferenceLineMetaDataGridViewControl.SetDataSource(referenceLineMetas.Select(rlm => new ReferenceLineMetaSelectionRow(rlm)).ToArray());
+
+            var dataSource = referenceLineMetas.Select(rlm => new ReferenceLineMetaSelectionRow(rlm)).OrderBy(row => row.AssessmentSectionId, new AssessmentSectionIdComparer());
+            ReferenceLineMetaDataGridViewControl.SetDataSource(dataSource.ToArray());
         }
 
         private void OkButtonOnClick(object sender, EventArgs e)
@@ -130,5 +133,69 @@
             public int? LowerLimitValue { get; private set; }
             public ReferenceLineMeta ReferenceLineMeta { get; private set; }
         }
+
+        private class AssessmentSectionIdComparer : IComparer<string>
+        {
+            public int Compare(string x, string y)
+            {
+                int idX;
+                string suffixX;
+                int subX;
+
+                int idY;
+                string suffixY;
+                int subY;
+
+                SplitAssessmentSectionId(x, out idX, out suffixX, out subX);
+                SplitAssessmentSectionId(y, out idY, out suffixY, out subY);
+
+                if (idX != idY)
+                {
+                    return idX - idY;
+                }
+
+                if (string.IsNullOrEmpty(suffixX) != string.IsNullOrEmpty(suffixY))
+                {
+                    return string.IsNullOrEmpty(suffixX) ? -1 : 1;
+                }
+                if (!string.IsNullOrEmpty(suffixX) && suffixX != suffixY)
+                {
+                    return string.Compare(suffixX, suffixY, StringComparison.Ordinal);
+                }
+                return subX - subY;
+            }
+
+            private static void SplitAssessmentSectionId(string str, out int id, out string suffix, out int sub)
+            {
+                if (string.IsNullOrEmpty(str))
+                {
+                    id = 0;
+                    sub = 0;
+                    suffix = string.Empty;
+                    return;
+                }
+                var parts = str.Split('-');
+                var firstPart = Regex.Split(parts.First(), "([A-Za-z])");
+                if (firstPart.Length > 1)
+                {
+                    int.TryParse(firstPart[0], out id);
+                    suffix = firstPart[1];
+                }
+                else
+                {
+                    int.TryParse(parts[0], out id);
+                    suffix = string.Empty;
+                }
+                
+                if (parts.Length == 2)
+                {
+                    int.TryParse(parts[1], out sub);
+                }
+                else
+                {
+                    sub = 0;
+                }
+            }
+        }
     }
 }
\ No newline at end of file
Index: Ringtoets/Integration/src/Ringtoets.Integration.Plugin/RingtoetsRibbon.xaml
===================================================================
diff -u -rb6d263f3f919ce64e84f4031b94a19e0995f202c -r47134c6560c0c969c184ab3bd3157fb06fb4d120
--- Ringtoets/Integration/src/Ringtoets.Integration.Plugin/RingtoetsRibbon.xaml	(.../RingtoetsRibbon.xaml)	(revision b6d263f3f919ce64e84f4031b94a19e0995f202c)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Plugin/RingtoetsRibbon.xaml	(.../RingtoetsRibbon.xaml)	(revision 47134c6560c0c969c184ab3bd3157fb06fb4d120)
@@ -15,7 +15,7 @@
     <fluent:Ribbon x:Name="RingtoetsRibbonControl" x:FieldModifier="private">
         <fluent:RibbonTabItem Header="{x:Static guiProperties:Resources.Ribbon_TabItem_Start}" fluent:KeyTip.Keys="S" >
             <fluent:RibbonGroupBox Header="{x:Static resx:Resources.RingtoetsRibbon_GroupBox_New}" fluent:KeyTip.Keys="ZN">
-                <fluent:Button x:Name="AddAssessmentSectionButton" Header="{x:Static properties:Resources.AssessmentSection_DisplayName}" LargeIcon="{Binding Source={x:Static properties:Resources.AddAssessmentSectionFolder}, Converter={StaticResource IconConverter}}" SizeDefinition="Large" Click="ButtonAddAssessmentSectionToolWindowClick" fluent:KeyTip.Keys="T" />
+                <fluent:Button x:Name="AddAssessmentSectionButton" Header="{x:Static properties:Resources.RingtoetsRibbon_AddAssessmentSection}" LargeIcon="{Binding Source={x:Static properties:Resources.AddAssessmentSectionFolder}, Converter={StaticResource IconConverter}}" SizeDefinition="Large" Click="ButtonAddAssessmentSectionToolWindowClick" fluent:KeyTip.Keys="T" />
             </fluent:RibbonGroupBox>
         </fluent:RibbonTabItem>
     </fluent:Ribbon>
Index: Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/Commands/AssessmentSectionFromFileCommandHandlerTest.cs
===================================================================
diff -u -r51b7ca830473fab00ed10f5cb0ff845f6be7503f -r47134c6560c0c969c184ab3bd3157fb06fb4d120
--- Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/Commands/AssessmentSectionFromFileCommandHandlerTest.cs	(.../AssessmentSectionFromFileCommandHandlerTest.cs)	(revision 51b7ca830473fab00ed10f5cb0ff845f6be7503f)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/Commands/AssessmentSectionFromFileCommandHandlerTest.cs	(.../AssessmentSectionFromFileCommandHandlerTest.cs)	(revision 47134c6560c0c969c184ab3bd3157fb06fb4d120)
@@ -428,7 +428,7 @@
                 var selectionDialog = (ReferenceLineMetaSelectionDialog) new FormTester(name).TheObject;
                 var grid = (DataGridViewControl) new ControlTester("ReferenceLineMetaDataGridViewControl", selectionDialog).TheObject;
                 var dataGridView = grid.Controls.OfType<DataGridView>().First();
-                dataGridView[0, 1].Selected = true;
+                dataGridView.Rows[1].Selected = true;
 
                 new ButtonTester("Ok", selectionDialog).Click();
             };
Index: Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/ReferenceLineMetaSelectionDialogTest.cs
===================================================================
diff -u -r04e456a3c39bc3a6e9c4cba357964aa9c83f258c -r47134c6560c0c969c184ab3bd3157fb06fb4d120
--- Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/ReferenceLineMetaSelectionDialogTest.cs	(.../ReferenceLineMetaSelectionDialogTest.cs)	(revision 04e456a3c39bc3a6e9c4cba357964aa9c83f258c)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/ReferenceLineMetaSelectionDialogTest.cs	(.../ReferenceLineMetaSelectionDialogTest.cs)	(revision 47134c6560c0c969c184ab3bd3157fb06fb4d120)
@@ -20,6 +20,7 @@
 // All rights reserved.
 
 using System;
+using System.Collections.Generic;
 using System.Linq;
 using System.Windows.Forms;
 using Core.Common.Controls.DataGrid;
@@ -71,6 +72,74 @@
         }
 
         [Test]
+        public void Constructor_WithParentAndUnorderedReferenceLineMetas_ShowsOrderedGrid()
+        {
+            // Setup
+            var referenceLineMetas = new[]
+            {
+                new ReferenceLineMeta(), 
+                new ReferenceLineMeta
+                {
+                    AssessmentSectionId = "101-10"
+                },
+                new ReferenceLineMeta
+                {
+                    AssessmentSectionId = "101b-1"
+                },
+                new ReferenceLineMeta
+                {
+                    AssessmentSectionId = "101-2"
+                },
+                new ReferenceLineMeta
+                {
+                    AssessmentSectionId = "101-1"
+                },
+                new ReferenceLineMeta
+                {
+                    AssessmentSectionId = "101a-1"
+                },
+                new ReferenceLineMeta
+                {
+                    AssessmentSectionId = "10"
+                },
+                new ReferenceLineMeta
+                {
+                    AssessmentSectionId = "102-1"
+                }
+            };
+
+            // Call
+            using (var dialog = new ReferenceLineMetaSelectionDialog(new Form(), referenceLineMetas))
+            {
+                // Assert
+                DataGridViewControl grid = (DataGridViewControl) new ControlTester("ReferenceLineMetaDataGridViewControl", dialog).TheObject;
+                DataGridView dataGridView = grid.Controls.OfType<DataGridView>().First();
+
+                var assessmentIdValuesInGrid = new List<string>();
+                for (var i = 0; i < dataGridView.Rows.Count; i++)
+                {
+                    var currentIdValue = dataGridView[0, i].FormattedValue;
+                    if (currentIdValue != null)
+                    {
+                        assessmentIdValuesInGrid.Add(currentIdValue.ToString());
+                    }
+                }
+
+                CollectionAssert.AreEqual(new[]
+                {
+                    "",
+                    "10",
+                    "101-1",
+                    "101-2",
+                    "101-10",
+                    "101a-1",
+                    "101b-1",
+                    "102-1"
+                }, assessmentIdValuesInGrid);
+            }
+        }
+
+        [Test]
         public void OnLoad_Always_SetMinimumSize()
         {
             // Setup