Reorganizing

content/NAVPatterns/3-cal-coding-guidelines/design/variable-capacity-mismatch/index.md

@@ -0,0 +1,59 @@
++++
+title = "Variable Capacity Mismatch"
+weight = 1410
++++
+Do not assign a value to a variable whose capacity is smaller.
+
+It will throw an error at runtime.
+
+Bad code
+
+    FileName@1010 : Text\[250\];
+    ...
+    UploadedFileName@1016 : Text\[1024\];
+    ...
+    FileName := UploadedFileName;
+
+Good code
+
+    FileName@1010 : Text\[1024\];
+    ...
+    UploadedFileName@1016 : Text\[1024\];
+    ...
+    FileName := UploadedFileName;
+
+Bad code
+
+    FileName@1010 : Text\[250\];
+    ...
+    UploadedFileName@1016 : Text\[1024\];
+    ...
+    FileName := UploadedFileName;
+
+Good code
+
+    FileName@1010 : Text\[250\];
+    ...
+    UploadedFileName@1016 : Text\[1024\];
+    ...
+    FileName := COPYSTR(UploadedFileName,1,250); // In case only the first 250 chars are needed. Similar for fields
+
+Bad code
+
+    VAR
+    ExceededNumberTxt@001 : 'ENU=Warning: Exceeded number of unsent documents/requests'
+    Subject@1002 : Text\[50\];
+    ...
+    BEGIN
+    ...
+    Subject := ExceededNumberTxt;
+
+Good code
+
+    VAR
+    ExceededNumberTxt@001 : 'ENU=Warning: Exceeded number of unsent documents/requests'
+    Subject@1002 : Text\[100\];
+    ...
+    BEGIN
+    ...
+    Subject := ExceededNumberTxt';