diff --git a/src/BootstrapBlazor/Components/Dialog/DialogService.cs b/src/BootstrapBlazor/Components/Dialog/DialogService.cs
index 088082b718b23a89e975f489062d6b8064f257f8..9f99a50ef460fa56b29d0cf8a82ede316388865d 100644
--- a/src/BootstrapBlazor/Components/Dialog/DialogService.cs
+++ b/src/BootstrapBlazor/Components/Dialog/DialogService.cs
@@ -49,11 +49,11 @@ namespace BootstrapBlazor.Components
 
             option.Component = BootstrapDynamicComponent.CreateComponent<SearchDialog<TModel>>(new[]
             {
-                new KeyValuePair<string, object>(nameof(SearchDialogOption<TModel>.Model), option.Model!),
+                new KeyValuePair<string, object>(nameof(SearchDialogOption<TModel>.Model), option.Model),
                 new KeyValuePair<string, object>(nameof(SearchDialogOption<TModel>.ShowLabel), option.ShowLabel),
                 new KeyValuePair<string, object>(nameof(SearchDialogOption<TModel>.ResetButtonText), option.ResetButtonText!),
                 new KeyValuePair<string, object>(nameof(SearchDialogOption<TModel>.QueryButtonText), option.QueryButtonText!),
-                new KeyValuePair<string, object>(nameof(SearchDialogOption<TModel>.Items), option.Items!),
+                new KeyValuePair<string, object>(nameof(SearchDialogOption<TModel>.Items), option.Items ?? Utility.GenerateColumns<TModel>(item => item.Searchable)),
                 new KeyValuePair<string, object>(nameof(SearchDialogOption<TModel>.BodyTemplate), option.DialogBodyTemplate!),
                 new KeyValuePair<string, object>(nameof(SearchDialogOption<TModel>.OnResetSearchClick), new Func<Task>(async () =>
                 {
diff --git a/src/BootstrapBlazor/Utils/Utility.cs b/src/BootstrapBlazor/Utils/Utility.cs
index ed607583685de29e978a38c16c6d5362cb6f5a55..4b08b340897b8e4b34458e73ab3ad4b35563b378 100644
--- a/src/BootstrapBlazor/Utils/Utility.cs
+++ b/src/BootstrapBlazor/Utils/Utility.cs
@@ -208,7 +208,7 @@ namespace BootstrapBlazor.Components
         /// </summary>
         /// <param name="predicate"></param>
         /// <returns></returns>
-        public static IEnumerable<IEditorItem> GenerateColumns<TModel>(Func<IEditorItem, bool>? predicate = null) where TModel : class
+        public static IEnumerable<ITableColumn> GenerateColumns<TModel>(Func<ITableColumn, bool>? predicate = null)
         {
             if (predicate == null) predicate = p => true;
             return InternalTableColumn.GetProperties<TModel>().Where(predicate);