Comments on: DesignMode + UserControls = HELL!!!

By: Guest

Guest — Sun, 27 Feb 2011 02:37:00 +0000

This code seems to work in multiple situations:

protected override void OnHandleCreated(EventArgs e)
{
base.OnHandleCreated(e);
if (RunTime())
MessageBox.Show(“RunTime”, (this.Name + ” ” + this.GetType().Name).Trim());
else
MessageBox.Show(“DesignTime”, (this.Name + ” ” + this.GetType().Name).Trim());
}

private bool RunTime()
{
Form parentForm = this.FindForm();
Control parentControl = this.Parent;
// Start with highest level and work down.
if (parentForm != null)
if (parentForm.Site != null && parentForm.Site.DesignMode)
return false;
else
return true;
else if (parentControl != null)
{
if (parentControl.Site != null && parentControl.Site.DesignMode)
return false;
else
return true;
}
else if (this.Site != null && this.Site.DesignMode)
return false;
else
return true;
}

By: bluewater

bluewater — Sun, 07 Nov 2010 08:13:00 +0000

awesome, thx!

By: Osmel

Osmel — Thu, 17 Dec 2009 00:11:52 +0000

Great tip, huge help! Thanks a lot

By: Abel Braaksma

Abel Braaksma — Wed, 02 Sep 2009 15:28:46 +0000

The pings above seem to show the intention that LicenseManager.UsageMode is a good workaround. It is for a limited number of situations, but there are too many situations where it fails (to name one: compact framework). One solution that fits all is unfortunately not trivial. You can read about it on my blog, or just download the solution.

http://www.undermyhat.org/blog/2009/07/in-depth-a-definitive-guide-to-net-user-controls-usage-mode-designmode-or-usermode/

– Abel –

By: David Wendelken

David Wendelken — Mon, 31 Aug 2009 15:13:07 +0000

Check this link. Fixed my problem with design mode right away.

http://decav.com/blogs/andre/archive/2007/04/18/1078.aspx

By: thed

thed — Fri, 28 Aug 2009 16:30:27 +0000

Works like a charm. Thanks!

By: In Depth: A definitive guide to .NET user control’s usage mode: DesignMode or UserMode | Under My Hat

Fri, 03 Jul 2009 22:13:45 +0000

[...] most often mentioned workaround is using the LicenseManager.UsageMode property. From all workarounds I’ve seen it appears the [...]

By: C#/VB.Net: Knowing what mode you’re currently executing in | Under My Hat

Fri, 26 Jun 2009 12:36:17 +0000

[...] most often mentioned workaround is using the LicenseManager.UsageMode property. From all workarounds I’ve seen it is the most [...]

By: BillKrat

BillKrat — Sat, 14 Mar 2009 18:24:16 +0000

Fix for Mobile Compact Framework (in constructor code) on the following blog:

http://www.global-webnet.net/blogengine/post/2009/03/14/Mobile-Compact-Framework-UserControl-DesignMode-null-in-constructor.aspx

By: cht

cht — Tue, 16 Dec 2008 16:39:49 +0000

helped me al lot, thanks.

cht