refactor: 更新数据初始化逻辑

Author: ArgoZhang

src/BootstrapBlazor/Components/Select/MultiSelect.razor

@@ -27,7 +27,7 @@
                     {
                         <div class="multi-select-item-group">
                             <DynamicElement TagName="span" class="multi-select-close" data-bb-val="@GetValueString(item)"
-                            TriggerClick="@(!IsPopover)" OnClick="() => ToggleRow(item.Value)">
+                                            TriggerClick="@(!IsPopover)" OnClick="() => ToggleRow(item.Value)">
                                 <i class="@ClearIcon"></i>
                             </DynamicElement>
                             <span class="multi-select-item">@item.Text</span>

src/BootstrapBlazor/Components/Select/MultiSelect.razor.cs

@@ -238,8 +238,16 @@ protected override void OnParametersSet()
         {
             PreviousValue = _currentValue;
             var list = _currentValue.Split(',', StringSplitOptions.RemoveEmptyEntries);
+
             SelectedItems.Clear();
-            SelectedItems.AddRange(Rows.Where(item => list.Any(i => i.Trim() == item.Value)));
+            if (IsVirtualize)
+            {
+                SelectedItems.AddRange(list.Select(i => new SelectedItem(i, i)));
+            }
+            else
+            {
+                SelectedItems.AddRange(Rows.Where(item => list.Any(i => i.Trim() == item.Value)));
+            }
         }
     }