Fixes for InputAttributes in SimpleSelect

src/Connected.Components.Showcase.Runner/Pages/Index.razor

@@ -6,12 +6,13 @@
 
 <p>SelectedValue: @SelectedValue.ToString()</p>
 
-<SimpleSelect
-    Items="@items" 
-    Label="Simple select" 
-    @bind-Value=@SelectedValue
-/>
-
+<CheckBoxGroup Id="chkgroup1">
+    <CheckBox Id="checkbox1" Label="Chk 1" />
+    <CheckBox Id="checkbox2" Label="Chk 2" />
+    <CheckBox Id="checkbox3" Label="Chk 3" />
+    <CheckBox Id="checkbox4" Label="Chk 4" />
+    <CheckBox Id="checkbox5" Label="Chk 5" />
+</CheckBoxGroup>
 
 @code {
 

src/Connected.Components/Components/SimpleSelect.razor.cs

@@ -76,13 +76,18 @@ public partial class SimpleSelect<ValueType> : InputBase
 
 	protected override async Task OnParametersSetAsync()
 	{
-		if (base.InputAttributes is null) base.InputAttributes = new();
-		if (base.Required)
-		{
-			if (base.InputAttributes.ContainsKey("required")) base.InputAttributes.Add("required", true);
-		}
+		
 		OriginalItems = Items;
 		if (_searchText.Length>0) await FilterItems();
+		await base.OnParametersSetAsync();
+	}
+
+	protected override async Task OnInitializedAsync()
+	{
 		await base.OnInitializedAsync();
+		if (Required)
+		{
+			if (InputAttributes.ContainsKey("required")) InputAttributes.Add("required", true);
+		}
 	}
 }