diff --git a/aspnet-core/modules/elsa/LINGYUN.Abp.ElsaNext.Studio.Blazor/Localization/Resources/ElsaStudioBlazor/en.json b/aspnet-core/modules/elsa/LINGYUN.Abp.ElsaNext.Studio.Blazor/Localization/Resources/ElsaStudioBlazor/en.json
index e2962ece2..48535886a 100644
--- a/aspnet-core/modules/elsa/LINGYUN.Abp.ElsaNext.Studio.Blazor/Localization/Resources/ElsaStudioBlazor/en.json
+++ b/aspnet-core/modules/elsa/LINGYUN.Abp.ElsaNext.Studio.Blazor/Localization/Resources/ElsaStudioBlazor/en.json
@@ -5,6 +5,7 @@
     "Menu:WorkflowDefinitions": "Workflow Definitions",
     "Menu:WorkflowInstances": "Workflow Instances",
     "Menu:Settings": "Settings",
+    "Select": "Select",
     "14 days": "14 days",
     "180 days": "180 days",
     "30 days": "30 days",
diff --git a/aspnet-core/modules/elsa/LINGYUN.Abp.ElsaNext.Studio.Blazor/Localization/Resources/ElsaStudioBlazor/zh-Hans.json b/aspnet-core/modules/elsa/LINGYUN.Abp.ElsaNext.Studio.Blazor/Localization/Resources/ElsaStudioBlazor/zh-Hans.json
index 70fd190c2..7ae90f140 100644
--- a/aspnet-core/modules/elsa/LINGYUN.Abp.ElsaNext.Studio.Blazor/Localization/Resources/ElsaStudioBlazor/zh-Hans.json
+++ b/aspnet-core/modules/elsa/LINGYUN.Abp.ElsaNext.Studio.Blazor/Localization/Resources/ElsaStudioBlazor/zh-Hans.json
@@ -5,6 +5,7 @@
     "Menu:WorkflowDefinitions": "工作流定义",
     "Menu:WorkflowInstances": "工作流实例",
     "Menu:Settings": "设置",
+    "Select": "选择",
     "180 days": "180 天",
     "30 days": "30 天",
     "7 days": "7 天",
diff --git a/aspnet-core/modules/elsa/LINGYUN.Abp.ElsaNext.Studio.Notifications.Blazor/Components/NotificationPicker.razor b/aspnet-core/modules/elsa/LINGYUN.Abp.ElsaNext.Studio.Notifications.Blazor/Components/NotificationPicker.razor
index d9f1d106f..c6dda794c 100644
--- a/aspnet-core/modules/elsa/LINGYUN.Abp.ElsaNext.Studio.Notifications.Blazor/Components/NotificationPicker.razor
+++ b/aspnet-core/modules/elsa/LINGYUN.Abp.ElsaNext.Studio.Notifications.Blazor/Components/NotificationPicker.razor
@@ -1,4 +1,4 @@
-@using Elsa.Api.Client.Shared.UIHints.DropDown
+@using LINGYUN.Abp.ElsaNext.Studio.Blazor.Components
 @inject ILocalizer Localizer
 
 @inherits StudioComponentBase
@@ -6,25 +6,18 @@
     var inputDescriptor = EditorContext.InputDescriptor;
     var displayName = inputDescriptor.DisplayName;
     var description = inputDescriptor.Description;
-    var selectedValue = GetSelectedValue();
 }
 
 <ExpressionInput EditorContext="@EditorContext">
     <ChildContent>
-        <MudSelectExtended 
-            T="SelectListItem" 
-            Label="@Localizer[displayName]" 
-            Variant="Variant.Outlined" 
-            HelperText="@Localizer[description]" 
-            Margin="Margin.Dense" 
-            Value="@selectedValue" 
-            SearchBox="true"
-            OnSearchStringChange="OnSearch"
-            ItemCollection="@_items"
-            ToStringFunc="@(item => item?.Text ?? "")"
-            ValueChanged="OnValueChanged"
-            ReadOnly="EditorContext.IsReadOnly"
-            Disabled="EditorContext.IsReadOnly">
-        </MudSelectExtended>
+        <MudTextFieldEx Value="@(_selectedItem?.Text ?? string.Empty)"
+                            Label="@Localizer[displayName]"
+                            HelperText="@Localizer[description]"
+                            Variant="Variant.Outlined"
+                            Margin="Margin.Dense"
+                            ReadOnly="true"
+                            Disabled="EditorContext.IsReadOnly"
+                            OnFieldClick="@(_ => OpenSelectDialogAsync())"
+                            AdornmentIcons="GetAdornmentIcons()" />
     </ChildContent>
 </ExpressionInput>
\ No newline at end of file
diff --git a/aspnet-core/modules/elsa/LINGYUN.Abp.ElsaNext.Studio.Notifications.Blazor/Components/NotificationPicker.razor.cs b/aspnet-core/modules/elsa/LINGYUN.Abp.ElsaNext.Studio.Notifications.Blazor/Components/NotificationPicker.razor.cs
index f6f35044c..db12314b4 100644
--- a/aspnet-core/modules/elsa/LINGYUN.Abp.ElsaNext.Studio.Notifications.Blazor/Components/NotificationPicker.razor.cs
+++ b/aspnet-core/modules/elsa/LINGYUN.Abp.ElsaNext.Studio.Notifications.Blazor/Components/NotificationPicker.razor.cs
@@ -1,54 +1,110 @@
 using Elsa.Api.Client.Shared.UIHints.DropDown;
 using Elsa.Studio.Models;
+using LINGYUN.Abp.ElsaNext.Studio.Blazor.Components;
 using LINGYUN.Abp.Notifications;
 using Microsoft.AspNetCore.Components;
 using Microsoft.Extensions.Localization;
-using System.Collections.Generic;
-using System.Linq;
+using MudBlazor;
 using System.Threading.Tasks;
 
 namespace LINGYUN.Abp.ElsaNext.Studio.Notifications.Blazor.Components;
 
 public partial class NotificationPicker
 {
-    private ICollection<SelectListItem> _items = [];
-    private IReadOnlyList<SelectListItem> _notifications = [];
+    private SelectListItem? _selectedItem;
 
     [Parameter] public DisplayInputEditorContext EditorContext { get; set; } = null!;
 
+    [Inject] protected IDialogService DialogService { get; set; } = null!;
     [Inject] private IStringLocalizerFactory StringLocalizerFactory { get; set; } = null!;
     [Inject] private INotificationDefinitionManager NotificationDefinitionManager { get; set; } = null!;
 
-    private SelectListItem? GetSelectedValue()
+    protected async override Task OnInitializedAsync()
     {
-        var value = EditorContext.GetLiteralValueOrDefault();
-        return _items.FirstOrDefault(x => x.Value == value);
-    }
+        var selectedItem = await ResolveSelectedItemAsync();
 
-    private void OnSearch(string? filter)
-    {
-        _items = _notifications
-            .WhereIf(!string.IsNullOrWhiteSpace(filter), x => x.Text.Contains(filter!))
-            .Take(10)
-            .ToList();
+        if (selectedItem != null)
+        {
+            await InvokeAsync(() => _selectedItem = selectedItem);
+        }
     }
 
-    private async Task OnValueChanged(SelectListItem? value)
+    private async Task<SelectListItem?> ResolveSelectedItemAsync()
     {
-        await EditorContext.UpdateValueOrLiteralExpressionAsync(value?.Value ?? "");
+        var value = EditorContext.GetLiteralValueOrDefault();
+
+        if (string.IsNullOrWhiteSpace(value))
+        {
+            return null;
+        }
+
+        var notificationDefine = await NotificationDefinitionManager.GetOrNullAsync(value);
+        if (notificationDefine != null)
+        {
+            return new SelectListItem(notificationDefine.DisplayName.Localize(StringLocalizerFactory), notificationDefine.Name);
+        }
+
+        return new SelectListItem(value, value);
     }
 
-    protected async override Task OnInitializedAsync()
+    private async Task OpenSelectDialogAsync()
     {
-        var notifications = await NotificationDefinitionManager.GetNotificationsAsync();
+        if (EditorContext.IsReadOnly)
+        {
+            return;
+        }
 
-        _notifications = notifications
-            .Select(notification => 
-                new SelectListItem(
-                    notification.DisplayName.Localize(StringLocalizerFactory), notification.Name))
-            .OrderBy(x => x.Text)
-            .ToList();
+        var inputDescriptor = EditorContext.InputDescriptor;
+        var parameters = new DialogParameters<NotificationSelectDialog>
+        {
+            { x => x.Title, Localizer[inputDescriptor.DisplayName ?? inputDescriptor.Name] },
+            { x => x.SelectedValue, _selectedItem?.Value }
+        };
+        var options = new DialogOptions
+        {
+            CloseOnEscapeKey = true,
+            FullWidth = true,
+            MaxWidth = MaxWidth.Medium
+        };
 
-        _items = _notifications.Take(10).ToList();
+        var dialog = await DialogService.ShowAsync<NotificationSelectDialog>(string.Empty, parameters, options);
+        var result = await dialog.Result;
+
+        if (result is { Canceled: false, Data: SelectListItem item })
+        {
+            await InvokeAsync(async () =>
+            {
+                _selectedItem = item;
+                await EditorContext.UpdateValueOrLiteralExpressionAsync(item.Value);
+            });
+        }
+    }
+
+    private MudTextFieldExIcon[] GetAdornmentIcons() =>
+    [
+        new()
+        {
+            Icon = Icons.Material.Filled.Search,
+            Tooltip = Localizer["Search"],
+            Disabled = EditorContext.IsReadOnly,
+            OnClick = OpenSelectDialogAsync
+        },
+        new()
+        {
+            Icon = Icons.Material.Filled.Clear,
+            Tooltip = Localizer["Clear"],
+            Visible = _selectedItem != null,
+            Disabled = EditorContext.IsReadOnly,
+            OnClick = ClearAsync
+        }
+    ];
+
+    private async Task ClearAsync()
+    {
+        await InvokeAsync(async () =>
+        {
+            _selectedItem = null;
+            await EditorContext.UpdateValueOrLiteralExpressionAsync(string.Empty);
+        });
     }
 }
diff --git a/aspnet-core/modules/elsa/LINGYUN.Abp.ElsaNext.Studio.Notifications.Blazor/Components/NotificationSelectDialog.razor b/aspnet-core/modules/elsa/LINGYUN.Abp.ElsaNext.Studio.Notifications.Blazor/Components/NotificationSelectDialog.razor
new file mode 100644
index 000000000..bd87ddcbb
--- /dev/null
+++ b/aspnet-core/modules/elsa/LINGYUN.Abp.ElsaNext.Studio.Notifications.Blazor/Components/NotificationSelectDialog.razor
@@ -0,0 +1,155 @@
+@using System.Threading
+@using Elsa.Api.Client.Shared.UIHints.DropDown
+@using LINGYUN.Abp.Notifications
+@using Microsoft.Extensions.Localization
+@inject ILocalizer Localizer
+
+@implements IDisposable
+
+<MudDialog>
+    <TitleContent>
+        <MudText Typo="Typo.h6">@Title</MudText>
+    </TitleContent>
+    <DialogContent>
+        <MudStack Spacing="3">
+            <MudTextField T="string"
+                          Value="_searchText"
+                          ValueChanged="OnSearchTextChangedAsync"
+                          Immediate="true"
+                          Placeholder="@Localizer["Search"]"
+                          Adornment="Adornment.Start"
+                          AdornmentIcon="@Icons.Material.Filled.Search"
+                          Variant="Variant.Outlined"
+                          Margin="Margin.Dense" />
+
+            <MudTable T="SelectListItem"
+                      @ref="_table"
+                      ServerData="LoadTenantsAsync"
+                      Dense="true"
+                      Hover="true"
+                      Breakpoint="Breakpoint.None"
+                      OnRowClick="OnRowClickAsync">
+                <HeaderContent>
+                    <MudTh>@Localizer["Name"]</MudTh>
+                    <MudTh Style="text-align:right" />
+                </HeaderContent>
+                <RowTemplate>
+                    <MudTd DataLabel="@Localizer["Name"]">@context.Text</MudTd>
+                    <MudTd DataLabel="" Style="text-align:right">
+                        @if (context.Value == SelectedValue)
+                        {
+                            <MudIcon Icon="@Icons.Material.Filled.Check" Color="Color.Success" Size="Size.Small" />
+                        }
+                        else
+                        {
+                            <MudButton Size="Size.Small" Variant="Variant.Text" Color="Color.Primary" OnClick="@(() => SelectAsync(context))">
+                                @Localizer["Select"]
+                            </MudButton>
+                        }
+                    </MudTd>
+                </RowTemplate>
+                <PagerContent>
+                    <MudTablePager
+                        PageSizeOptions="new int[] { 10, 25, 50, 100 }"/>
+                </PagerContent>
+                <NoRecordsContent>
+                    <MudText Typo="Typo.body2">@Localizer["No results found"]</MudText>
+                </NoRecordsContent>
+            </MudTable>
+        </MudStack>
+    </DialogContent>
+    <DialogActions>
+        <MudButton Variant="Variant.Text" OnClick="CancelAsync">@Localizer["Cancel"]</MudButton>
+    </DialogActions>
+</MudDialog>
+
+@code {
+    private const int DebounceIntervalMilliseconds = 350;
+
+    private MudTable<SelectListItem>? _table;
+    private string? _searchText;
+    private CancellationTokenSource? _debounceCancellationTokenSource;
+
+    [CascadingParameter] private IMudDialogInstance MudDialog { get; set; } = null!;
+
+    [Parameter] public string Title { get; set; } = string.Empty;
+
+    [Parameter] public string? SelectedValue { get; set; }
+
+    [Inject] private IStringLocalizerFactory StringLocalizerFactory { get; set; } = null!;
+    [Inject] private INotificationDefinitionManager NotificationDefinitionManager { get; set; } = null!;
+
+    public void Dispose()
+    {
+        _debounceCancellationTokenSource?.Cancel();
+        _debounceCancellationTokenSource?.Dispose();
+    }
+
+    private async Task OnSearchTextChangedAsync(string? searchValue)
+    {
+        _searchText = searchValue;
+
+        _debounceCancellationTokenSource?.Cancel();
+        _debounceCancellationTokenSource?.Dispose();
+        _debounceCancellationTokenSource = new CancellationTokenSource();
+
+        try
+        {
+            await Task.Delay(DebounceIntervalMilliseconds, _debounceCancellationTokenSource.Token);
+
+            var table = _table;
+
+            if (table != null)
+            {
+                await InvokeAsync(() => table.ReloadServerData());
+            }
+        }
+        catch (OperationCanceledException)
+        {
+        }
+    }
+
+    private async Task<TableData<SelectListItem>> LoadTenantsAsync(TableState state, CancellationToken cancellationToken)
+    {
+        var filter = string.IsNullOrWhiteSpace(_searchText) ? null : _searchText.Trim();
+
+        var notifications = await NotificationDefinitionManager.GetNotificationsAsync();
+
+        var items = notifications
+            .Select(notification => new SelectListItem(
+                notification.DisplayName.Localize(StringLocalizerFactory),
+                notification.Name))
+            .WhereIf(!string.IsNullOrWhiteSpace(filter), x => x.Text.Contains(filter!) || x.Value.Contains(filter!))
+            .OrderBy(x => x.Text)
+            .Skip(state.Page * state.PageSize)
+            .Take(state.PageSize)
+            .ToList();
+
+        return new TableData<SelectListItem>
+        {
+            Items = items,
+            TotalItems = notifications.Count,
+        };
+    }
+
+    private async Task OnRowClickAsync(TableRowClickEventArgs<SelectListItem> args)
+    {
+        await SelectAsync(args.Item);
+    }
+
+    private Task SelectAsync(SelectListItem? item)
+    {
+        if (item == null)
+        {
+            return Task.CompletedTask;
+        }
+
+        MudDialog.Close(DialogResult.Ok(item));
+        return Task.CompletedTask;
+    }
+
+    private void CancelAsync()
+    {
+        MudDialog.Cancel();
+    }
+}
diff --git a/aspnet-core/modules/elsa/LINGYUN.Abp.ElsaNext/LINGYUN/Abp/ElsaNext/UIHints/AbpElsaUIHints.cs b/aspnet-core/modules/elsa/LINGYUN.Abp.ElsaNext/LINGYUN/Abp/ElsaNext/UIHints/AbpElsaUIHints.cs
index 34004c52e..bb7999e3f 100644
--- a/aspnet-core/modules/elsa/LINGYUN.Abp.ElsaNext/LINGYUN/Abp/ElsaNext/UIHints/AbpElsaUIHints.cs
+++ b/aspnet-core/modules/elsa/LINGYUN.Abp.ElsaNext/LINGYUN/Abp/ElsaNext/UIHints/AbpElsaUIHints.cs
@@ -1,7 +1,8 @@
-namespace LINGYUN.Abp.ElsaNext.UIHints;
+namespace LINGYUN.Abp.ElsaNext.UIHints;
 
 public static class AbpElsaUIHints
 {
     public const string TenantPicker = "tenant-picker";
     public const string UserPicker = "user-picker";
+    public const string UserPickerMultiple = "user-picker-multiple";
 }