From 951c0d793603824b0294bfe98cb066e48a274bd7 Mon Sep 17 00:00:00 2001
From: Andy McFadden <fadden@fadden.com>
Date: Sun, 6 Oct 2019 10:46:55 -0700
Subject: [PATCH] Fix ListView click locator

The code that figures out which row and column you clicked in wasn't
taking horizontal scrolling into account.  Issue #49.
---
 CommonWPF/WPFExtensions.cs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/CommonWPF/WPFExtensions.cs b/CommonWPF/WPFExtensions.cs
index 4d33c9f..890b4b9 100644
--- a/CommonWPF/WPFExtensions.cs
+++ b/CommonWPF/WPFExtensions.cs
@@ -147,9 +147,13 @@ namespace CommonWPF {
             // for it, so for now just fudge it.
             const int FUDGE = 4;
 
+            // Need to take horizontal scrolling into account.
+            ScrollViewer sv = lv.GetVisualChild<ScrollViewer>();
+            double scrollPos = sv.HorizontalOffset;
+
             Point p = e.GetPosition(lv);
             GridView gv = (GridView)lv.View;
-            double startPos = FUDGE;
+            double startPos = FUDGE - scrollPos;
             for (int index = 0; index < gv.Columns.Count; index++) {
                 GridViewColumn col = gv.Columns[index];