Checkbox - working example -- NumberInput,TextInput - InputAttributes initialization moved to InputBase class

src/Connected.Components/Components/CheckBox.razor

@@ -0,0 +1,13 @@
+@using Connected.Models;
+
+@inherits InputBase;
+
+<div class="checkbox-group">
+@if (Checked)
+{
+    <input id="@Id" name="checkbox" type="checkbox" @onchange="OnChange" @attributes=@InputAttributes checked> 
+} else {
+    <input id="@Id" name="checkbox" type="checkbox" @onchange="OnChange" @attributes=@InputAttributes>
+}
+<label for="@Id" class="checkbox-label">@Label</label>
+</div>

src/Connected.Components/Components/CheckBox.razor.cs

@@ -0,0 +1,21 @@
+using Connected.Models;
+using Microsoft.AspNetCore.Components;
+
+namespace Connected.Components;
+public partial class CheckBox: InputBase
+{
+	[Parameter]
+	public bool Checked { get; set; } = false;
+
+	[Parameter, EditorRequired]
+	public string Id { get; set; }
+
+	[Parameter]
+	public EventCallback<bool> CheckedChange { get; set; }
+	public async Task OnChange(ChangeEventArgs args)
+	{
+		Checked = (bool)args.Value;
+		CheckedChange.InvokeAsync(Checked);
+	}
+
+}

src/Connected.Components/Components/CheckBoxGroup.razor

@@ -0,0 +1,9 @@
+@using Connected.Models;
+
+@inherits InputBase;
+
+<div>
+    <div class="container">
+        @ChildContent
+    </div>
+</div>

src/Connected.Components/Components/CheckBoxGroup.razor.cs

@@ -0,0 +1,11 @@
+using Microsoft.AspNetCore.Components;
+
+namespace Connected.Components;
+public partial class CheckBoxGroup
+{
+	[Parameter, EditorRequired]
+	public string Id { get; set; }
+
+	[Parameter]
+	public RenderFragment ChildContent { get; set; }
+}

src/Connected.Components/Components/NumberInput.razor.cs

@@ -228,5 +228,14 @@ public partial class NumberInput<NumberType>:InputBase where NumberType : INumbe
 		await base.OnParametersSetAsync();
     }
 
-    #endregion
+	protected override async Task OnInitializedAsync()
+	{
+		await base.OnInitializedAsync();
+		if (Required)
+		{
+			if (!InputAttributes.ContainsKey("required")) InputAttributes.Add("required", true);
+		}
+	}
+
+	#endregion
 }

src/Connected.Components/Components/TextInput.razor.cs

@@ -56,14 +56,13 @@ public partial class TextInput: InputBase
 
 	}
 
-	protected override async Task OnParametersSetAsync()
-    {
-		if (base.InputAttributes is null) base.InputAttributes = new();
-		if (base.Required)
+	protected override async Task OnInitializedAsync()
+   {
+		await base.OnInitializedAsync();
+		if (Required)
 		{
-			if (base.InputAttributes.ContainsKey("required")) base.InputAttributes.Add("required", true);
+			if (!InputAttributes.ContainsKey("required")) InputAttributes.Add("required", true);
 		}
-		await base.OnInitializedAsync();
-    }
+   }
 
 }

src/Connected.Components/Models/InputBase.cs

@@ -1,7 +1,5 @@
 using Connected.Utilities;
 using Microsoft.AspNetCore.Components;
-using static Connected.Colors;
-using static System.Net.Mime.MediaTypeNames;
 
 namespace Connected.Models;
 public class InputBase : ComponentBase
@@ -124,4 +122,9 @@ public class InputBase : ComponentBase
 
 	[Parameter]
 	public string Placeholder { get; set; } = string.Empty;
+
+	protected override async Task OnInitializedAsync()
+	{
+		if (InputAttributes is null) InputAttributes = new();
+	}
 }