diff --git a/DbFirst.BlazorWasm/Components/CatalogsGrid.razor b/DbFirst.BlazorWasm/Components/CatalogsGrid.razor
index e0ffd4e..57f741e 100644
--- a/DbFirst.BlazorWasm/Components/CatalogsGrid.razor
+++ b/DbFirst.BlazorWasm/Components/CatalogsGrid.razor
@@ -128,6 +128,9 @@ else
         <DxGrid Data="@items"
                 TItem="CatalogReadDto"
                 KeyFieldName="@nameof(CatalogReadDto.Guid)"
+                ShowGroupPanel="true"
+                ShowGroupedColumns="true"
+                AllowGroup="true"
                 ShowFilterRow="true"
                 AllowColumnResize="true"
                 ColumnResizeMode="GridColumnResizeMode.ColumnsContainer"
diff --git a/DbFirst.BlazorWasm/Components/MassDataGrid.razor b/DbFirst.BlazorWasm/Components/MassDataGrid.razor
index 2fcc16b..f29fee4 100644
--- a/DbFirst.BlazorWasm/Components/MassDataGrid.razor
+++ b/DbFirst.BlazorWasm/Components/MassDataGrid.razor
@@ -163,6 +163,9 @@ else
         <DxGrid Data="@items"
                 TItem="MassDataReadDto"
                 KeyFieldName="@nameof(MassDataReadDto.Id)"
+                ShowGroupPanel="true"
+                ShowGroupedColumns="true"
+                AllowGroup="true"
                 ShowFilterRow="true"
                 AllowColumnResize="true"
                 ColumnResizeMode="GridColumnResizeMode.ColumnsContainer"
diff --git a/DbFirst.BlazorWebApp/Components/CatalogsGrid.razor b/DbFirst.BlazorWebApp/Components/CatalogsGrid.razor
index d55ed44..48c62e5 100644
--- a/DbFirst.BlazorWebApp/Components/CatalogsGrid.razor
+++ b/DbFirst.BlazorWebApp/Components/CatalogsGrid.razor
@@ -87,6 +87,9 @@ else
         <DxGrid Data="@items"
                 TItem="CatalogReadDto"
                 KeyFieldName="@nameof(CatalogReadDto.Guid)"
+                ShowGroupPanel="true"
+                ShowGroupedColumns="true"
+                AllowGroup="true"
                 ShowFilterRow="true"
                 AllowColumnResize="true"
                 ColumnResizeMode="GridColumnResizeMode.ColumnsContainer"
diff --git a/DbFirst.BlazorWebApp/Components/MassDataGrid.razor b/DbFirst.BlazorWebApp/Components/MassDataGrid.razor
index ee73160..72ee7da 100644
--- a/DbFirst.BlazorWebApp/Components/MassDataGrid.razor
+++ b/DbFirst.BlazorWebApp/Components/MassDataGrid.razor
@@ -163,6 +163,9 @@ else
         <DxGrid Data="@items"
                 TItem="MassDataReadDto"
                 KeyFieldName="@nameof(MassDataReadDto.Id)"
+                ShowGroupPanel="true"
+                ShowGroupedColumns="true"
+                AllowGroup="true"
                 ShowFilterRow="true"
                 AllowColumnResize="true"
                 ColumnResizeMode="GridColumnResizeMode.ColumnsContainer"