fix(module: select): allow change both data source and value in one r…

…ender period (#1720) * fix(module:select): allow change both datasource and value in one render period * Update Select.razor.cs * Update Select.razor.cs * Update Select.razor.cs
ant-design-blazor · Jul 11, 2021 · 352b8ca · 352b8ca
1 parent 1542d36
commit 352b8ca
Showing 1 changed file with 14 additions and 10 deletions.
diff --git a/components/select/Select.razor.cs b/components/select/Select.razor.cs
@@ -262,24 +262,18 @@ public IEnumerable<TItem> DataSource
             }
         }
 
+        bool _valueHasChanged;
+
         [Parameter]
         public override TItemValue Value
         {
             get => _selectedValue;
             set
             {
-                var hasChanged = !EqualityComparer<TItemValue>.Default.Equals(value, _selectedValue);
-                if (hasChanged)
+                _valueHasChanged = !EqualityComparer<TItemValue>.Default.Equals(value, _selectedValue);
+                if (_valueHasChanged)
                 {
                     _selectedValue = value;
-                    if (_isInitialized)
-                    {
-                        OnValueChange(value);
-                        if (Form?.ValidateOnChange == true)
-                        {
-                            EditContext?.NotifyFieldChanged(FieldIdentifier);
-                        }
-                    }
                 }
             }
         }
@@ -532,6 +526,16 @@ protected override async Task OnParametersSetAsync()
             if (SelectOptions == null)
                 CreateDeleteSelectOptions();
 
+            if (_valueHasChanged && _isInitialized)
+            {
+                _valueHasChanged = false;
+                OnValueChange(_selectedValue);
+                if (Form?.ValidateOnChange == true)
+                {
+                    EditContext?.NotifyFieldChanged(FieldIdentifier);
+                }
+            }
+
             await base.OnParametersSetAsync();
         }