Add formless mode to ValidateForm for in-cell table editing (#7437)

* Add formless mode to ValidateForm for in-cell table editing

Introduces an IsFormless parameter to ValidateForm, allowing it to operate without rendering a form element, which is used for in-cell editing in Table. Updates Table to use this mode for in-cell editing, ensures validation is performed, and manages EditContext accordingly. Also fixes validation logic and EditTemplate usage to support the new mode.

* refactor: 代码重构精简代码逻辑

* refactor: 精简代码

* refactor: 优化性能

* refactor: 消除提示信息

* test: 增加单元测试

* refactor: 更新单元测试

---------

Co-authored-by: Argo Zhang <argo@live.ca>

Author: celadaris

src/BootstrapBlazor/Components/Table/Table.razor

@@ -787,19 +787,7 @@
             {
                 @RenderRowExtendButtons(item)
             }
-            @if (RowContentTemplate != null)
-            {
-                var columns = GetVisibleColumns();
-                @RowContentTemplate(new(item, columns, ActiveRenderMode))
-            }
-            else
-            {
-                @RenderContentRow(item)
-            }
-            @if (ShowExtendButtons && !IsExtendButtonsInRowHeader)
-            {
-                @RenderRowExtendButtons(item)
-            }
+            @RenderRowCell(item)
         </DynamicElement>;
 
     RenderFragment<TableContentCellContext<TItem>> RenderContentCell => context =>
@@ -1152,4 +1140,9 @@
                         OnValueChanged="visible => OnToggleColumnVisible(item.Name, visible)">
             </Checkbox>
         </div>;
+
+    RenderFragment<TItem> RenderRowContentWithValidateForm => item =>
+        @<ValidateForm @ref="_inCellValidateForm" Model="EditModel" IsFormless="true" ShowLabel="false">
+            @RenderRowContent(item)
+        </ValidateForm>;
 }

src/BootstrapBlazor/Components/Table/Table.razor.Edit.cs

@@ -703,6 +703,12 @@ private async Task ClickEditButton(TItem item)
 
     private async Task ClickUpdateButtonCallback()
     {
+        // 验证 InCell 模式下的表单
+        if (!_inCellValidateForm.Validate())
+        {
+            return;
+        }
+
         var context = new EditContext(EditModel);
         await SaveAsync(context, AddInCell ? ItemChangedType.Add : ItemChangedType.Update);
     }

src/BootstrapBlazor/Components/Table/Table.razor.Toolbar.cs

@@ -499,6 +499,11 @@ private bool GetColumnsListState(ColumnVisibleItem item)
 
     private bool InCellMode => AddInCell || EditInCell;
 
+    /// <summary>
+    /// 获得 InCell 模式下的 ValidateForm 实例
+    /// </summary>
+    private ValidateForm _inCellValidateForm = default!;
+
     /// <summary>
     /// 新建按钮方法
     /// </summary>

src/BootstrapBlazor/Components/Table/Table.razor.cs

@@ -1501,7 +1501,7 @@ RenderFragment RenderTemplate() => col.Template == null
             : col.Template(item);
 
         RenderFragment RenderEditTemplate() => col.EditTemplate == null
-            ? new RenderFragment(builder => builder.CreateComponentByFieldType(this, col, item, changedType, isSearch: false, col.GetLookupService(InjectLookupService), skipValidate: true))
+            ? new RenderFragment(builder => builder.CreateComponentByFieldType(this, col, item, changedType, isSearch: false, col.GetLookupService(InjectLookupService), skipValidate: false))
             : col.EditTemplate(item);
     }
 
@@ -1840,6 +1840,36 @@ private void OnTouchEnd()
 
     private object? GetKeyByITem(TItem item) => SortableList != null ? item : null; //OnGetRowKey?.Invoke(item);
 
+    private RenderFragment RenderRowCell(TItem item) => builder =>
+    {
+        var isInCellEditRow = InCellMode && SelectedRows.FirstOrDefault() == item;
+        if (isInCellEditRow)
+        {
+            builder.AddContent(0, RenderRowContentWithValidateForm(item));
+        }
+        else
+        {
+            builder.AddContent(1, RenderRowContent(item));
+        }
+    };
+
+    private RenderFragment RenderRowContent(TItem item) => builder =>
+    {
+        if (RowContentTemplate != null)
+        {
+            var columns = GetVisibleColumns();
+            builder.AddContent(0, RowContentTemplate(new(item, columns, ActiveRenderMode)));
+        }
+        else
+        {
+            builder.AddContent(1, RenderContentRow(item));
+        }
+        if (ShowExtendButtons && !IsExtendButtonsInRowHeader)
+        {
+            builder.AddContent(2, RenderRowExtendButtons(item));
+        }
+    };
+
     /// <summary>
     /// Dispose 方法
     /// </summary>

src/BootstrapBlazor/Components/ValidateForm/ValidateForm.razor

@@ -1,16 +1,26 @@
-@namespace BootstrapBlazor.Components
+@namespace BootstrapBlazor.Components
 @inherits BootstrapModuleComponentBase
 @attribute [BootstrapModuleAutoLoader]
 
 @if (Model != null)
 {
     <CascadingValue Value="this" IsFixed="true">
-        <EditForm @attributes="@AdditionalAttributes" id="@Id" Model="@Model" 
-                  data-bb-dissubmit="@DisableAutoSubmitString" data-bb-invalid-result="@ShowAllInvalidResultString"
-                  style="@StyleString"
-                  OnValidSubmit="@OnValidSubmitForm" OnInvalidSubmit="@OnInvalidSubmitForm">
-            <BootstrapBlazorDataAnnotationsValidator @ref="Validator" />
-            @ChildContent
-        </EditForm>
+        @if (IsFormless)
+        {
+            <CascadingValue Value="_formlessEditContext" IsFixed="true">
+                <BootstrapBlazorDataAnnotationsValidator @ref="Validator" />
+                @ChildContent
+            </CascadingValue>
+        }
+        else
+        {
+            <EditForm @attributes="@AdditionalAttributes" id="@Id" Model="@Model"
+                      data-bb-dissubmit="@DisableAutoSubmitString" data-bb-invalid-result="@ShowAllInvalidResultString"
+                      style="@StyleString"
+                      OnValidSubmit="@OnValidSubmitForm" OnInvalidSubmit="@OnInvalidSubmitForm">
+                <BootstrapBlazorDataAnnotationsValidator @ref="Validator" />
+                @ChildContent
+            </EditForm>
+        }
     </CascadingValue>
 }

src/BootstrapBlazor/Components/ValidateForm/ValidateForm.razor.cs

@@ -83,6 +83,13 @@ public partial class ValidateForm
     [Parameter]
     public bool? ShowLabelTooltip { get; set; }
 
+    /// <summary>
+    /// 获得/设置 是否为无表单模式 默认 false
+    /// </summary>
+    /// <remarks>设置为 true 时不渲染 form 元素，仅级联 EditContext 用于 Table InCell 编辑模式</remarks>
+    [Parameter]
+    public bool IsFormless { get; set; }
+
     /// <summary>
     /// 获得/设置 是否禁用表单内回车自动提交功能 默认 null 未设置
     /// </summary>
@@ -146,6 +153,12 @@ protected override void OnParametersSet()
         {
             DisableAutoSubmitFormByEnter = BootstrapBlazorOptions.CurrentValue.DisableAutoSubmitFormByEnter.Value;
         }
+
+        // 无表单模式下创建/更新 EditContext
+        if (IsFormless)
+        {
+            _formlessEditContext ??= new EditContext(Model);
+        }
     }
 
     /// <summary>
@@ -330,6 +343,13 @@ internal async Task ValidateObject(ValidationContext context, List<ValidationRes
             {
                 await validator.ToggleMessage(messages);
             }
+
+            // 确保 _invalid 在没有验证组件时被正确设置
+            // Ensure _invalid is properly set when there are no validation components
+            if (_validatorCache.IsEmpty)
+            {
+                _invalid = results.Count > 0;
+            }
         }
     }
 
@@ -636,6 +656,11 @@ private async Task OnInvalidSubmitForm(EditContext context)
     [NotNull]
     private BootstrapBlazorDataAnnotationsValidator? Validator { get; set; }
 
+    /// <summary>
+    /// 获得/设置 无表单模式下的 EditContext 实例
+    /// </summary>
+    private EditContext? _formlessEditContext;
+
     /// <summary>
     /// 验证方法 用于代码调用触发表单验证
     /// </summary>

test/UnitTest/Components/TableTest.cs

@@ -3887,6 +3887,19 @@ public async Task InCell_Ok()
         });
         var button = cut.Find("tbody tr td button");
         await cut.InvokeAsync(() => button.Click());
+
+        // 增加 Validate 测试
+        // 设置姓名为 null 保存按钮不成功
+        var nameField = cut.Find("tbody tr td input");
+        Assert.Equal("张三 0001", nameField.GetAttribute("value"));
+
+        await cut.InvokeAsync(() => nameField.Change(""));
+        Assert.Contains("is-invalid", nameField.ToMarkup());
+        await cut.InvokeAsync(() => button.Click());
+
+        await cut.InvokeAsync(() => nameField.Change("张三 0001"));
+        Assert.Contains("is-valid", nameField.ToMarkup());
+        await cut.InvokeAsync(() => button.Click());
     }
 
     [Fact]