A hackish workaround to make Select All faster in the Cheat Dialog

BizHawk.Client.EmuHawk/CustomControls/VirtualListView.cs

@@ -776,11 +776,21 @@ namespace BizHawk.Client.EmuHawk
 			selection = -1;
 		}
 
+		// Informs user that a select all event is in place, can be used in change events to wait until this is false
+		public bool SelectAllInProgress { get; set; }
+
 		public void SelectAll()
 		{
 			this.BeginUpdate();
+			SelectAllInProgress = true;
+
 			for (var i = 0; i < _itemCount; i++)
 			{
+				if (i == _itemCount - 1)
+				{
+					SelectAllInProgress = false;
+				}
+
 				this.SelectItem(i, true);
 			}
 

BizHawk.Client.EmuHawk/tools/Cheats/Cheats.cs

@@ -388,6 +388,8 @@ namespace BizHawk.Client.EmuHawk
 		}
 
 		private void DoSelectedIndexChange()
+		{
+			if (!CheatListView.SelectAllInProgress)
 			{
 				if (SelectedCheats.Any())
 				{
@@ -401,6 +403,7 @@ namespace BizHawk.Client.EmuHawk
 					CheatGroupBox.Text = "New Cheat";
 				}
 			}
+		}
 
 		private void StartNewList()
 		{