First pass conversion of NAV Patterns

content/NAVPatterns/use-text-constants/index.md

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+title = "use-text-constants.md"
+weight = 1360
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+Pass user messages using Text Constants. It makes translation easy.
+
+Bad code
+
+    ImportAttachmentQst@1021 : TextConst 'ENU="Import attachment "';
+    ...
+    IF CONFIRM(ImportAttachmentQst + Caption +'?',TRUE) THEN BEGIN
+
+Good code
+
+    ImportAttachmentQst@1021 : TextConst 'ENU="Import attachment %1?"';
+    ...
+    IF CONFIRM(STRSUBSTNO(ImportAttachmentQst, Caption),TRUE) THEN BEGIN
+
+Bad code
+
+    ...
+    IF NOT
+    CONFIRM(
+    STRSUBSTNO(
+    'Difference on Periodic entries: %1 on %2' +
+    'Do you want to continue?',Balance,Date),
+    TRUE)
+    THEN
+    ERROR('Program terminated by the user');
+
+Good code
+
+    DiffOnPeriodEntiesQst@100 : TextConst 'ENU="Difference on Periodic entries: %1 on %2\\ Do you want to continue?"';
+    ProgramTerminatedErr@200 : TextConst 'ENU="Program terminated by the user"';
+    ...
+    IF NOT CONFIRM(STRSUBSTNO(DiffOnPeriodEntiesQst,Balance,Date),TRUE) THEN
+    ERROR(ProgramTerminatedErr);