Bug 11748 - Setting of DockPadding property destroys AutoScrollPositions
Summary: Setting of DockPadding property destroys AutoScrollPositions
Status: NEW
Alias: None
Product: Class Libraries
Classification: Mono
Component: Windows.Forms ()
Version: 2.10.x
Hardware: PC Linux
: Lowest normal
Target Milestone: Community
Assignee: Bugzilla
Depends on:
Reported: 2013-04-12 01:56 UTC by YurySerdyuk
Modified: 2017-09-01 11:56 UTC (History)
1 user (show)

Tags: mono-community
Is this bug a regression?: ---
Last known good build:

Notice (2018-05-24): bugzilla.xamarin.com is now in read-only mode.

Please join us on Visual Studio Developer Community and in the Xamarin and Mono organizations on GitHub to continue tracking issues. Bugzilla will remain available for reference in read-only mode. We will continue to work on open Bugzilla bugs, copy them to the new locations as needed for follow-up, and add the new items under Related Links.

Our sincere thanks to everyone who has contributed on this bug tracker over the years. Thanks also for your understanding as we make these adjustments and improvements for the future.

Please create a new report for Bug 11748 on GitHub or Developer Community if you have new information to add and do not yet see a matching new report.

If the latest results still closely match this report, you can use the original description:

  • Export the original title and description: GitHub Markdown or Developer Community HTML
  • Copy the title and description into the new report. Adjust them to be up-to-date if needed.
  • Add your new information.

In special cases on GitHub you might also want the comments: GitHub Markdown with public comments

Related Links:

Description YurySerdyuk 2013-04-12 01:56:14 UTC
Under Windows.Forms, when we set DockPadding property, this setting destroys AutoScrollPosition values.

Test program:

using System;
using System.Windows.Forms;
using System.Drawing;

 public class Program
   public static void Main(string[] args)
    Application.Run(new Form1(args));

class Form1:Form
 public Form1(string[] args)
  this.AutoScroll = true;
  this.ClientSize = new Size( 610, 610);

  int X = this.AutoScrollPosition.X;
  int Y = this.AutoScrollPosition.Y;
  Console.WriteLine ( "X = " + X + " Y = " + Y );

  this.DockPadding.All = 610;

  int newX = this.AutoScrollPosition.X;
  int newY = this.AutoScrollPosition.Y;
  Console.WriteLine ( "newX = " + newX + " newY = " + newY );



Actual console output:

>mono TestForm.exe
X = 0 Y = 0
newX = 610 newY = 610

Correct output:
X = 0 Y = 0
newX = 0 newY = 0

Version information:

Mono 3.0.7
libgdiplus: 2.10.9