DevForce Community Forum : ComboBox Validation http://www.ideablade.com/forum/ This is an XML content feed of; DevForce Community Forum : DevForce 2010 : ComboBox Validation Wed, 29 Jul 2026 20:32:09 -700 Tue, 26 Apr 2011 10:42:35 -700 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 9.69 360 www.ideablade.com/forum/RSS_post_feed.asp?TID=2631 DevForce Community Forum http://www.ideablade.com/forum/forum_images/IdeaBlade_logo_tm.png http://www.ideablade.com/forum/ ComboBox Validation : Thanks for the upload, I'll... http://www.ideablade.com/forum/forum_posts.asp?TID=2631&PID=10539#10539 Author: robertg
Subject: 2631
Posted: 26-Apr-2011 at 10:42am

Thanks for the upload, I'll take a look at your solution.]]> Tue, 26 Apr 2011 10:42:35 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=2631&PID=10539#10539 ComboBox Validation : Hello!I've attached a Sample... http://www.ideablade.com/forum/forum_posts.asp?TID=2631&PID=10538#10538 Author: Waahnsinn
Subject: 2631
Posted: 26-Apr-2011 at 9:42am

Hello!

I've attached a Sample (works with the NorthwindIB Database).

I want the combobox to display an error when there is no category selected in the ComboBox.


uploads/743/WpfApplicationComboBox.zip]]> Tue, 26 Apr 2011 09:42:29 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=2631&PID=10538#10538 ComboBox Validation : You could try something like... http://www.ideablade.com/forum/forum_posts.asp?TID=2631&PID=10517#10517 Author: gregweb
Subject: 2631
Posted: 21-Apr-2011 at 1:34pm

You could try something like this to force the validation to display:
 
public void Window_Loaded(object sender, RoutedEventArgs e)
{
// we manually fire the bindings so we get the validation initially
cboName.GetBindingExpression(TextBox.TextProperty).UpdateSource();
   
}

 

Greg


]]> Thu, 21 Apr 2011 13:34:08 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=2631&PID=10517#10517 ComboBox Validation : Waahnsinn,Is it a pre-defined... http://www.ideablade.com/forum/forum_posts.asp?TID=2631&PID=10510#10510 Author: robertg
Subject: 2631
Posted: 21-Apr-2011 at 11:09am

Waahnsinn,

Is it a pre-defined verifier, or a customer verifier which is generating the error status that's not being shown by the combobox control?

Could you post some code, so I can see how you're doing this? I can't really tell you what's wrong without being able to see what you're doing.

There are a few differences between DF validation in WPF and either Silverlight or WinForms. You may also want to look at the writeup for this on the DRC: http://drc.ideablade.com/xwiki/bin/view/Documentation/verification-ui#HVerificationwithaWPFUI

-- Robert
]]> Thu, 21 Apr 2011 11:09:31 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=2631&PID=10510#10510 ComboBox Validation : Hi!I've got a WPF Form on... http://www.ideablade.com/forum/forum_posts.asp?TID=2631&PID=10506#10506 Author: Waahnsinn
Subject: 2631
Posted: 21-Apr-2011 at 6:25am

Hi!
I've got a WPF Form on which I want to display a ComboBox. The selection of a value of this ComboBox is required so I need to display e.g. a RedBorder for this ComboBox if no value is selected.
The SelectedItem of the ComboBox is bound to the Property of the corresponding Entity.
The Validation is working - I only need a way to display the error...


]]> Thu, 21 Apr 2011 06:25:22 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=2631&PID=10506#10506