Presenting Validation Errors in Text Mode
By default, Oxygen XML Developer automatically validates documents while editing in the Text mode, and actions are also available to manually validate documents on-request.
 
      
Validation Marker Locations
- In the main editing pane, with the issue underlined in a color according to the type of issue.
- In the right-side vertical stripe, with a marker that is colored according to the type of issue.
- For attributes with detected issues, in the Attributes view, with the attribute and its value colored according to the type of issue.
Validation Marker Colors
- Validation Errors [Red] - By default, the underline in the editing pane, the marker in the right vertical stripe, and the foreground color of the attribute in the Attributes view are colored in red.
- Validation Warnings [Yellow] - By default, the underline in the editing pane, the marker in the right vertical stripe, and the foreground color of the attribute in the Attributes view are colored in yellow.
- Validation Info [Blue] - By default, the underline in the editing pane, the marker in the right vertical stripe, and the foreground color of the attribute in the Attributes view are colored in blue.
Validation Markers in the Right-Side Stripe
- Upper Part of the Stripe
- A success indicator square will turn green if the validation is successful or only info messages are found, red if validation errors are found, or yellow if only validation warnings are found. More details about the issues are displayed in a tooltip when you hover over indicator square. If there are numerous problems, only the first three are presented in the tooltip.
- Middle Part of the Stripe
- 
            Errors are presented with red markers, warnings with yellow markers, and info message with blue markers. If you want to limit the number of markers that are displayed, open the Preferences dialog box , go to , and specify the desired limit in the Maximum number of validation highlights option. Clicking a marker will highlight the corresponding text area in the editor. The validation message is also displayed both in a tooltip (when hovering over the marker) and in the message area on the bottom of the editor panel (clicking the  Document checking options button
                opens the Document Checking preferences page. Document checking options button
                opens the Document Checking preferences page.
- Bottom Part of the Stripe
- Two navigation arrows ( ) can be used to jump
            to the next or previous issue. The same actions can be triggered from  (Ctrl + Period
                    (Command + Period on macOS)) and  (Ctrl + Comma
                    (Command + Comma on macOS)). Also, the ) can be used to jump
            to the next or previous issue. The same actions can be triggered from  (Ctrl + Period
                    (Command + Period on macOS)) and  (Ctrl + Comma
                    (Command + Comma on macOS)). Also, the Remove All button can be used
              to clear all the validation markers. Remove All button can be used
              to clear all the validation markers.
Hovering Over Validation Issues
Hovering over a validation issue presents a tooltip message with more details about the problem and possible quick fixes (if available for that issue). Also, when hovering over an issue, pressing F2 will change the focus to the tooltip where you can use Tab and Shift + Tab to navigate between quick fixes and Space to trigger them.
Details About Validation Issues
- Information about the issue is also displayed in the message area on the bottom of the
            editor panel (clicking the  Document
              checking options button opens the Document
                Checking preferences page where you can configure some validation
              options (such as the colors used to present the
              validation issues). Some validation messages have an icon ( Document
              checking options button opens the Document
                Checking preferences page where you can configure some validation
              options (such as the colors used to present the
              validation issues). Some validation messages have an icon ( ) and clicking it opens a dialog box
            with additional information and a link to specifications. ) and clicking it opens a dialog box
            with additional information and a link to specifications.
- When a validation is processed, information about
            the validation scenario is displayed in the stripe at the very bottom of the
            application. It includes the name of the validation scenario and its status. If you
            hover over the information, a tooltip is presented with more information. You can also
            click the  button to open
            the Information view, where even more details are
                displayed. button to open
            the Information view, where even more details are
                displayed. 
- If you want to see all the
        validation messages grouped in the Results view view, use the  Validate action from
        the toolbar or  menu. To see more information about a validation message, right-click the
        item in the Results view and select Show
          message. Some validation messages have an icon ( Validate action from
        the toolbar or  menu. To see more information about a validation message, right-click the
        item in the Results view and select Show
          message. Some validation messages have an icon ( ) in the Info
        column and clicking it opens a dialog box with additional information and a link to
        specifications. ) in the Info
        column and clicking it opens a dialog box with additional information and a link to
        specifications.
