Saving Screens and Objects

On the Canvas toolbar, click Save currently selected screen (Save currently selected screen (Ctrl+S)) to save the current screen file. Once a screen or object has been named and saved, its name will appear on its tab in the Screen pane when it is reopened.

Note: Access Save as via the Backstage view to edit an existing screen file name or make changes to its folder location.

Naming Screens

When naming Canvas files, only use alphanumeric characters 0-9, a-z, and the set of characters generally acceptable for your Windows operating system. Certain characters are reserved for specific meanings, so do not use them when naming files. The following characters are not permitted: < (less than), > (greater than), : (colon), " (double quote), / (forward slash), \ (backslash), | (vertical bar or pipe), ? (question mark), or * (asterisk).

Canvas File Names

Spaces in Canvas screen file names are valid when saving screens Canvas for view in the Native target environment; however, spaces are not permitted in a Thin Web Client page directive (URL). A Canvas screen file name for a screen intended to be viewed in the Canvas Native view is limited to the following characters: a-z A-Z 0-9 -._~. No special characters are permitted, other than -._~. Spaces in Canvas screen file names are valid when saving screens for use in the Canvas Native view only.

A Canvas screen file name for a screen intended to be published and viewed in the CygNet TWC web view is limited to the following characters: a-z A-Z 0-9 -._~. No spaces or special characters are permitted, other than -._~.

The TWC publishing service contains a file name check to detect spaces and invalid characters in a Canvas screen file name. If your screens have invalid characters in their file names, and the target environment is Web client, you will see an Error in the Publishing service when publishing these files, which will be reported in the Details pane on the Publishing page in Backstage view > Web Settings.

Save Canvas Files in BSS

All Canvas screen files (and any associated images) intended for inclusion in a Thin Web Client application must be saved in a folder in the BSS.

Closing an Unsaved Screen

When closing an unsaved screen (by clicking the X button), and you have not previously saved the screen, you will see a Save Screen message. Do one of the following:

  • Click Save screen to save the screen. Canvas will take you to the Backstage view Save as option where you can save the screen as described above.
  • Click Close without saving to close the screen without saving it. All edits will be lost.

 

 

Save Screen Dialog Box

Save before closing screen

Saving when Closing the Canvas Application

When closing Canvas (by either via Backstage view > Exit or clicking the X button), and you have unsaved screens, you will see an Unsaved Screens message. Do one of the following:

  • Click Save screens to save any unsaved screens, and Canvas will close. If you have new unsaved screens you will be returned to the Screen pane, where you can save the screen(s) as described above.
  • Click Close without saving to close Canvas. All edits will be lost.
  • Click Cancel to return to the Screen pane.
 

Unsaved Screens Dialog Box

Save before closing Canvas