You are building a Windows Forms application that prints lengthy text from a form named XYZProcedures. Users report that when they click the Print button, only the first page of text is printed even though the text spans multiple pages. You are using the standard .NET printing classes. Which event handler must set the HasMorePages property to true in order to print all pages correctly?

Difficulty: Medium

Correct Answer: In the PrintPage event, set the HasMorePages property of the PrintPageEventArgs object to true while more text remains.

Explanation:


Introduction / Context:
When printing multi-page documents using the .NET printing framework, developers must manage pagination manually by drawing content and telling the printing system whether additional pages are required. The PrintPage event is raised once per page, and the event arguments include a HasMorePages property that signals whether the printing framework should request another page. This question checks your understanding of where to set HasMorePages so that all pages of a long text are printed rather than only the first page.



Given Data / Assumptions:

  • A Windows Forms application prints long text from a form named XYZProcedures.
  • The default .NET printing classes (PrintDocument and related events) are being used.
  • Only the first page of the text is currently printed.
  • You must decide in which event to set HasMorePages = true for additional pages.
  • Printing should continue until all text has been rendered.



Concept / Approach:
The PrintDocument class raises several events: BeginPrint, PrintPage, QueryPageSettings and EndPrint. The PrintPage event is raised for each page to be printed and provides a PrintPageEventArgs object. This object includes the HasMorePages property, which you set to true when there is more content to print after the current page. If HasMorePages is false (the default), the printing process stops after the current page. BeginPrint and EndPrint are used for initialization and cleanup, but they do not control per-page continuation. QueryPageSettings configures page layout but also does not manage the decision to print another page.



Step-by-Step Solution:
1. Handle the PrintPage event of your PrintDocument component. 2. In the PrintPage handler, measure how many characters or lines of the long text fit on the current page using Graphics.MeasureString or similar routines. 3. Draw the appropriate portion of the text onto e.Graphics for that page. 4. If there is still more text that has not yet been printed, set e.HasMorePages = true, which tells the printing system to raise PrintPage again for the next page. 5. When all text has been rendered, set e.HasMorePages = false, which ends the printing job after the current page.



Verification / Alternative check:
After implementing this logic, print a document with multiple pages of text. You should see that the PrintPage event fires repeatedly until all text is exhausted. By logging the page number inside PrintPage, you can verify that additional pages are generated only while HasMorePages is true. Once it becomes false, printing stops, confirming that the application now prints the complete content.



Why Other Options Are Wrong:
Option A is incorrect because BeginPrint runs only once at the start of the job and is meant for initialization, not per-page decisions. Setting HasMorePages there does not tell the printing system how many pages you actually need. Option B is wrong because EndPrint runs after the printing is already complete; changing HasMorePages at that point has no effect. Option D is incorrect because QueryPageSettings is used for page size and orientation configuration, not for deciding whether another page is required based on remaining content.



Common Pitfalls:
Developers often forget to track which portion of the text has already been printed between successive PrintPage events. Another frequent error is failing to persist the position in the text across calls, resulting in repeated printing of the same content or skipped sections. Some developers also mistakenly think that setting HasMorePages once is enough, but it must be set correctly for each page. Proper use of PrintPage, in combination with HasMorePages and state variables, is essential to implement robust multi-page printing.



Final Answer:
You must set HasMorePages on the PrintPageEventArgs object inside the PrintPage event handler while there is still text left to print so that all pages are generated.

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