From 4ecca2bb53fa4107ae1611d1a874eee14dc20145 Mon Sep 17 00:00:00 2001
From: Connor Laderer <connor.laderer@liazon.com>
Date: Wed, 24 May 2017 22:08:33 -0400
Subject: [PATCH] Added overload of Start for AppBuilderBase

This will allow for easy use of Dependency Injection with Microsoft.Extensions.DependencyInjection the mainWindow can resolve any constructor objects it may have.
---
 src/Avalonia.Controls/AppBuilderBase.cs | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/src/Avalonia.Controls/AppBuilderBase.cs b/src/Avalonia.Controls/AppBuilderBase.cs
index 97de093a59..13e9c108e1 100644
--- a/src/Avalonia.Controls/AppBuilderBase.cs
+++ b/src/Avalonia.Controls/AppBuilderBase.cs
@@ -129,6 +129,24 @@ namespace Avalonia.Controls
             Instance.Run(window);
         }
 
+        /// <summary>
+        /// Starts the application with the provided instance of <typeparamref name="TMainWindow"/>.
+        /// </summary>
+        /// <typeparam name="TMainWindow">The window type.</typeparam>
+        /// <param name="mainWindow">Instance of type TMainWindow to use when starting the app</param>
+        /// <param name="dataContextProvider">A delegate that will be called to create a data context for the window (optional).</param>
+        public void Start<TMainWindow>(TMainWindow mainWindow, Func<object> dataContextProvider = null)
+            where TMainWindow : Window, new()
+        {
+            Setup();
+            BeforeStartCallback(Self);
+
+            if (dataContextProvider != null)
+                mainWindow.DataContext = dataContextProvider();
+            mainWindow.Show();
+            Instance.Run(mainWindow);
+        }
+
         /// <summary>
         /// Sets up the platform-specific services for the application, but does not run it.
         /// </summary>