From 5379de9a6eef2a9039a5c5ab2b827466d57e5f7a Mon Sep 17 00:00:00 2001
From: YoshiRulz <OSSYoshiRulz@gmail.com>
Date: Fri, 15 Jul 2022 09:34:52 +1000
Subject: [PATCH] Enable MA0019 and fix noncompliance

"Use EventArgs.Empty" (instead of ctor)
---
 Common.ruleset                                              | 2 +-
 .../CustomControls/InputRoll/InputRoll.cs                   | 6 +++---
 src/BizHawk.Client.EmuHawk/tools/Watch/RamSearch.cs         | 4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/Common.ruleset b/Common.ruleset
index 1c81730929..d85dc06d21 100644
--- a/Common.ruleset
+++ b/Common.ruleset
@@ -150,7 +150,7 @@
 		<Rule Id="MA0018" Action="Error" />
 
 		<!-- Use EventArgs.Empty -->
-		<Rule Id="MA0019" Action="Hidden" />
+		<Rule Id="MA0019" Action="Error" />
 
 		<!-- Use direct methods instead of LINQ methods -->
 		<Rule Id="MA0020" Action="Hidden" />
diff --git a/src/BizHawk.Client.EmuHawk/CustomControls/InputRoll/InputRoll.cs b/src/BizHawk.Client.EmuHawk/CustomControls/InputRoll/InputRoll.cs
index 3d64bf144c..3d1e62268c 100644
--- a/src/BizHawk.Client.EmuHawk/CustomControls/InputRoll/InputRoll.cs
+++ b/src/BizHawk.Client.EmuHawk/CustomControls/InputRoll/InputRoll.cs
@@ -583,7 +583,7 @@ namespace BizHawk.Client.EmuHawk
 		{
 			_lastSelectedRow = null;
 			_selectedItems.Clear();
-			SelectedIndexChanged?.Invoke(this, new EventArgs());
+			SelectedIndexChanged?.Invoke(this, EventArgs.Empty);
 			Refresh();
 		}
 
@@ -1214,7 +1214,7 @@ namespace BizHawk.Client.EmuHawk
 
 					Refresh();
 
-					SelectedIndexChanged?.Invoke(this, new EventArgs());
+					SelectedIndexChanged?.Invoke(this, EventArgs.Empty);
 				}
 			}
 
@@ -1234,7 +1234,7 @@ namespace BizHawk.Client.EmuHawk
 
 						Refresh();
 
-						SelectedIndexChanged?.Invoke(this, new EventArgs());
+						SelectedIndexChanged?.Invoke(this, EventArgs.Empty);
 					}
 				}
 			}
diff --git a/src/BizHawk.Client.EmuHawk/tools/Watch/RamSearch.cs b/src/BizHawk.Client.EmuHawk/tools/Watch/RamSearch.cs
index fd00087ec6..8307dc2ef7 100644
--- a/src/BizHawk.Client.EmuHawk/tools/Watch/RamSearch.cs
+++ b/src/BizHawk.Client.EmuHawk/tools/Watch/RamSearch.cs
@@ -371,7 +371,7 @@ namespace BizHawk.Client.EmuHawk
 
 			radios[index].Checked = true;
 			var mi = radios[index].GetType().GetMethod("OnClick", BindingFlags.Instance | BindingFlags.NonPublic);
-			mi?.Invoke(radios[index], new object[] { new EventArgs() });
+			mi?.Invoke(radios[index], new object[] { EventArgs.Empty });
 		}
 
 		public void NextOperator(bool reverse = false)
@@ -407,7 +407,7 @@ namespace BizHawk.Client.EmuHawk
 
 			radios[index].Checked = true;
 			var mi = radios[index].GetType().GetMethod("OnClick", BindingFlags.Instance | BindingFlags.NonPublic);
-			mi?.Invoke(radios[index], new object[] { new EventArgs() });
+			mi?.Invoke(radios[index], new object[] { EventArgs.Empty });
 		}
 
 		private void ToggleSearchDependentToolBarItems()