Index: sources/gui/qml/dialogs/PatientIdEntry.qml
===================================================================
diff -u -r3e682c5afdadcf4dd2006e3d975fbee58e48619e -rc2f474ff07c98aa350c445a2474976a3cf985f40
--- sources/gui/qml/dialogs/PatientIdEntry.qml	(.../PatientIdEntry.qml)	(revision 3e682c5afdadcf4dd2006e3d975fbee58e48619e)
+++ sources/gui/qml/dialogs/PatientIdEntry.qml	(.../PatientIdEntry.qml)	(revision c2f474ff07c98aa350c445a2474976a3cf985f40)
@@ -51,7 +51,10 @@
                 textInput.leftPadding       : Variables.defaultMargin * 14
                 textInput.inputMethodHints  : Qt.ImhPreferLowercase
                 textInput.echoMode          : TextInput.Normal
+                textInput.validator         : RegExpValidator { regExp: Variables.regExp_PatientID }
+/* Qt6 Port: replace the above line with the following one:
                 textInput.validator         : RegularExpressionValidator { regularExpression: Variables.regExp_PatientID }
+*/
                 line.visible                : false
                 enabled                     : _root.editingEnabled
 
@@ -82,7 +85,10 @@
                 textInput.leftPadding       : Variables.defaultMargin * 14
                 textInput.inputMethodHints  : Qt.ImhPreferLowercase
                 textInput.echoMode          : TextInput.Normal
+                textInput.validator         : RegExpValidator { regExp: Variables.regExp_PatientID }
+/* Qt6 Port: replace the above line with the following one:
                 textInput.validator         : RegularExpressionValidator { regularExpression: Variables.regExp_PatientID }
+*/
                 line.visible                : false
                 enabled                     : _root.editingEnabled