feat(Form): splitting DataAnnotations and FluentValidation, auto label generating and built-in complex type validation

src/Masa.Blazor/Components/Form/AutoLabelOptions.cs

@@ -0,0 +1,56 @@
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using IComponent = Microsoft.AspNetCore.Components.IComponent;
+
+namespace Masa.Blazor.Components.Form;
+
+/// <summary>
+/// The settings for automatically generating the label of the form input.
+/// Should be placed in the <see cref="MForm"/> component.
+/// </summary>
+public class AutoLabelOptions : IComponent
+{
+    [CascadingParameter] private MForm? Form { get; set; }
+
+    /// <summary>
+    /// The attribute type to get the display name.
+    /// Supported types are <see cref="DisplayAttribute"/> and <see cref="System.ComponentModel.DisplayNameAttribute"/>.
+    /// </summary>
+    [Parameter]
+    public Type? AttributeType { get; set; } = typeof(DisplayNameAttribute);
+
+    private bool _init;
+
+    public void Attach(RenderHandle renderHandle)
+    {
+    }
+
+    public Task SetParametersAsync(ParameterView parameters)
+    {
+        if (_init)
+        {
+            return Task.CompletedTask;
+        }
+
+        _init = true;
+
+        if (parameters.TryGetValue(nameof(Form), out MForm? form))
+        {
+            Form = form;
+        }
+
+        if (Form is null)
+        {
+            return Task.CompletedTask;
+        }
+
+        if (parameters.TryGetValue(nameof(AttributeType), out Type? attributeType))
+        {
+            AttributeType = attributeType;
+        }
+
+        Form.LabelAttributeType = AttributeType;
+
+        return Task.CompletedTask;
+    }
+}