Add batch generate

src/Controls/samples/Controls.Sample.Sandbox/MainPage.xaml

@@ -8,6 +8,8 @@
         <Label x:Name="info" Text="Click a button" VerticalOptions="Center"/>
         <Button Text="Clear Grid" Clicked="ClearGrid_Clicked"/>
         <Button Text="Generate Grid" Clicked="Button_Clicked"/>
+        <Entry x:Name="BatchSize" Text="15"/>
+        <Button Text="Batch Generate Grid" Clicked="BatchGenerate_Clicked"/>
 
         <HorizontalStackLayout x:Name="myGridWrapper">
             <Grid x:Name="contentGrid"/>

src/Controls/samples/Controls.Sample.Sandbox/MainPage.xaml.cs

@@ -6,6 +6,9 @@ namespace Maui.Controls.Sample;
 
 public partial class MainPage : ContentPage
 {
+	const int rowCount = 30;
+	const int columnCount = 30;
+
 	public MainPage()
 	{
 		InitializeComponent();
@@ -24,9 +27,6 @@ private void ClearGrid_Clicked(object sender, EventArgs e)
 
 	private void Button_Clicked(object sender, EventArgs e)
 	{
-		const int rowCount = 30;
-		const int columnCount = 30;
-
 		Stopwatch sw = Stopwatch.StartNew();
 		contentGrid.Clear();
 
@@ -42,4 +42,29 @@ private void Button_Clicked(object sender, EventArgs e)
 		sw.Stop();
 		info.Text = $"Clearing grid took: {sw.ElapsedMilliseconds} ms";
 	}
+
+	private void BatchGenerate_Clicked(object sender, EventArgs e)
+	{
+		Stopwatch sw = Stopwatch.StartNew();		
+
+		int batchSize = int.Parse(BatchSize.Text);
+
+		for (int i = 0; i < batchSize; i++)
+		{
+			contentGrid.Clear();
+
+			for (int rowIndex = 0; rowIndex < rowCount; rowIndex++)
+			{
+				for (int columnIndex = 0; columnIndex < columnCount; columnIndex++)
+				{
+					Label label = new Label() { Text = $"[{columnIndex}x{rowIndex}]" };
+					contentGrid.Add(label, column: columnIndex, row: rowIndex);
+				}
+			}
+		}
+
+		sw.Stop();
+		info.Text = $"Grid was created {batchSize} times and it took {sw.ElapsedMilliseconds} ms in total. Avg run took {Math.Round(sw.ElapsedMilliseconds / (double)batchSize, 2)} ms";
+	}
+
 }