From 272939464eaa6341b718ec8621967df29bc2e826 Mon Sep 17 00:00:00 2001
From: Steven Kirk <grokys@gmail.com>
Date: Thu, 12 Apr 2018 23:28:08 +0200
Subject: [PATCH 1/2] Need to press a button to click it!

Only raise a `Button` click event on pointer release when the button has been pressed first!
---
 src/Avalonia.Controls/Button.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Avalonia.Controls/Button.cs b/src/Avalonia.Controls/Button.cs
index 4922761a84..fa69d72d67 100644
--- a/src/Avalonia.Controls/Button.cs
+++ b/src/Avalonia.Controls/Button.cs
@@ -245,7 +245,7 @@ namespace Avalonia.Controls
         {
             base.OnPointerReleased(e);
 
-            if (e.MouseButton == MouseButton.Left)
+            if (IsPressed && e.MouseButton == MouseButton.Left)
             {
                 e.Device.Capture(null);
                 IsPressed = false;

From ef44f2b9083b81289889da46cc2f84159b94b6bd Mon Sep 17 00:00:00 2001
From: Steven Kirk <grokys@gmail.com>
Date: Thu, 12 Apr 2018 23:28:21 +0200
Subject: [PATCH 2/2] Handle the click that opens a DropDown.

---
 src/Avalonia.Controls/DropDown.cs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/Avalonia.Controls/DropDown.cs b/src/Avalonia.Controls/DropDown.cs
index a7ea2da4a4..932179028e 100644
--- a/src/Avalonia.Controls/DropDown.cs
+++ b/src/Avalonia.Controls/DropDown.cs
@@ -164,6 +164,7 @@ namespace Avalonia.Controls
                 else
                 {
                     IsDropDownOpen = !IsDropDownOpen;
+                    e.Handled = true;
                 }
             }
             base.OnPointerPressed(e);