Inspecting and troubleshooting pages

The Page field shows information about the main page or a selected (highlighted) subpage in a part. The field shows the following information:

• The name, as specified by its Name property
• The ID as specified by the ID property.
• The type, as specified by the PageType property.

Elements shown with limited information

• Role Center pages

  If a page has the type Role Center, the Table field doesn't appear. Because the Role Center consists of several parts, there's no more information shown. To see more details, select the different parts that make up the Role Center.

• Report request pages and previews

  If you open a report request page or preview for inspection, the only information shown in the Page Inspection pane is the report's name and ID.

  Tip

  From the Business Central client, you can export report results as raw data to a Microsoft Excel file. The file contains all columns of the dataset, but without the layout applied. Use the file to help validate that the report returns the expected data, and to ensure that the report layout controls match the dataset value types. To export a report dataset to Excel, run the report and select the Send to > Microsoft Excel Document (data only) on the request page. For more information, see Working with Reports - Send to Excel.

• System parts, such as Links or Notes, and parts containing charts.

Explore page in Visual Studio Code

With Business Central 2023 release wave 2, you can explore the code behind the page in Visual Studio Code to troubleshoot any issues. To do this, select the Explore in Visual Studio Code link, which opens the page in Visual Studio Code, where you can inspect the page object and its source table. For more information, see Troubleshoot in Visual Studio Code directly from the web client.

If the main page or the selected page part has a source table, the Table field displays information about the source table. The source table is specified by the page's SourceTable property. The Table field shows the following information:

• The name, as specified by its Name property
• The ID as specified by the ID property.

If the page uses a query object as a data source, the table field shows the query name and ID instead.

View Table

If a page has a source table, the View table link is available. This link opens the table in a separate browser window, so you can see all records and fields in the table.

The Table Fields tab displays information about all fields in the source table for the current record, including fields that don't appear on the page.

Each field is shown with the following information:

• Field name as specified by the Name property.
• Field number as specified by the Field No property.
• Data type as specified by the Data Type property.
• If the field is a primary key, it's indicated by PK. A primary is specified by the Key property.
• Value of the field.
• If the field is added by an extension, the name of the extension appears under the value.
• For Code and Text fields the length of the field is shown as follows: Text[x] or Code[x], where x is the length of the field.

What field information isn't shown

• Page fields that aren't bound to the source table by the SourceExp property.
• The value of fields that have a data type of blob, byte, media, or mediaset.

The Extensions tab displays installed extensions that affect the selected page or its source table.

Except for the type and performance information, the data that's shown is defined in the extension's app.json file, which is configured during development. For more information, see App.json.

The ID, which is sometimes referred to as AppID, is a 32-digit unique identifier, which is useful when identifying extensions and debugging issues.

Type

There are four different extension types:

• Adds page indicates that the extension adds the page object.
• Extends page indicates that the extension modifies the page, like adding a field, action, or code. In AL, these modifications are done by a page extension object.
• Adds table indicates that the extension adds the table object.
• Extends table indicates that the extension modifies the source table, like adding a field or code. In AL, these modifications are specified by a table extension object.

Performance

The performance information includes two values. The first value indicates the time (in milliseconds) it took to run the extension in the call stack. The second value indicates the number of event subscribers run in the extension.

The Page Filters tab displays the current filters used on the current page. The tab shows filters set by code, set in list views, or defined by the user in the filter pane of the page.

The following table describes the different filter types.