Re: Problem in Jagged Line in 3d cube in wpf - WPF Discussion Boards

WPF DataGrid how to set RowSpan using code-behind?

13-Jan-10 18:33

Hi
I am new wpf and 3D. I want to know how to draw cross section line while mouse enter like (Auto cad) in WPF

Regards
Gopal

hidipak13-Jan-10 10:12

hidipak

13-Jan-10 10:12

I want to set Rowspan for DataGrid's row using code-behind.

Can anyone please tell me how is it possible?

Thanks,
Dipak

Re: WPF DataGrid how to set RowSpan using code-behind?

Abhinav S13-Jan-10 18:33

Abhinav S

13-Jan-10 18:33

AFAIK, DataGrid does not have a rowspan property.

A Grid has a row span and can be set in codebehind as follows

Grid.SetRowSpan();

There are only 10 types of people in this world — those who understand binary, and those who don't.

Problem in Jagged Line in 3d cube in wpf

Gopal_Kanchana13-Jan-10 6:25

13-Jan-10 6:25

Hi
I have problem for displaying jagged line(not smooth vertex) in 3d cube in wpf.

Please let me know how to solve it

Insincere Dave13-Jan-10 6:33

Insincere Dave

13-Jan-10 6:33

Anti-aliasing 3D content is not supported on windows XP. You could try changing HKEY_CURRENT_USER\SOFTWARE\Microsoft\Avalon.Graphics\MaxMultisampleType as described in this article http://msdn.microsoft.com/en-us/library/aa970912.aspx.

Gopal_Kanchana13-Jan-10 6:37

13-Jan-10 6:37

Hi I didn't have this path in my registry
(Avalon.Graphics\MaxMultisampleType)

Only having HKEY_CURRENT_USER\SOFTWARE\Microsoft this path

Insincere Dave13-Jan-10 6:50

Insincere Dave

13-Jan-10 6:50

I think you may have to create it, there are quite a lot of discussions about it on the web that you can search for. I also came across http://stackoverflow.com/questions/39454/is-there-a-secret-trick-to-force-antialiasing-inside-viewport3d-in-windows-xp where it says it should be HKEY_LOCAL_MACHINE\Software\Microsoft\Avalon.Graphics\MaxMultiplesampleType. Neither of them exist on my vista machine but as they're mainly for debugging I think you create them. They affect all the WPF applications and its recommended your app/installer doesn't change them.

Gopal_Kanchana13-Jan-10 18:30

13-Jan-10 18:30

Hi Thanks for your solution

Gopal_Kanchana14-Jan-10 17:39

14-Jan-10 17:39

Hi I have download above registered key
http://blogs.msdn.com/karstenj/archive/2005/09/28/475040.aspx
and installed my system. but still i am getting jagged line. is it my video card not supported? if so what type of card will get supported

Regards
Gopal

testing if window is loaded.

Jammer18-Jan-10 4:48

Jammer

18-Jan-10 4:48

I had to play with video card setup to get it turned on ... even after adding the registry key ...

Jammer
My Blog | Articles | DMon - Download

gritter13-Jan-10 4:29

13-Jan-10 4:29

I am writing a WPF app that loops thru a series of windows. The first time thru, I need to create the next window, but on subsequent times, I want it to re-display the previously created window. I believe the function TryFindResource() should help me do this, but it's not working. See code below.

Private Sub btnGo_Click(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs)

     Dim nextWindow As Window = CType(TryFindResource("Window3"), Window)
     If (nextWindow Is Nothing) Then
         nextWindow = New Window3
         nextWindow.Show()
     Else
         nextWindow.Show()
     End If

 End Sub

Appreciate any help with this. Yes, this is my first WPF app.

gritter13-Jan-10 4:59

13-Jan-10 4:59

I changed the line with TryFindResource() to:

Dim nextWindow As Window = CType(Application.Current.TryFindResource("Window3"), Window)

The change made no difference. It still doesn't find the existing instance of Window3.

Ian Shlasko13-Jan-10 5:52

Ian Shlasko

13-Jan-10 5:52

Try a static/shared field - These are related to the class itself, not to the instance of the class:

In the Window3 code:

Private Shared _currentInstance as Window3

Public Shared Function GetInstance() As Window3
  If _currentInstance Is Nothing Then
    _currentInstance = New Window3
  End If

 GetInstance = _currentInstance
End Function

Also, be sure to add code to the OnClosing, or some similar location, to set _currentInstance back to Nothing if you close Window3.

And in your btnGo code:

Window3.GetInstance().Show()

Oh, and might want to consider giving Window3 a more meaningful name.

Proud to have finally moved to the A-Ark. Which one are you in?
Author of Guardians of Xen (Sci-Fi/Fantasy novel)

gritter13-Jan-10 6:48

13-Jan-10 6:48

Thanks! That works, except it does shift focus to the "called window". If you can help me out here too, I would appreciate it. WPF makes me feel pretty helpless. I didn't realize it was so different from WinForms.

gritter13-Jan-10 6:58

Re: I need an ebay program

13-Jan-10 6:58

Actually I think I got. It's probably not the best way, but I can do what I need by playing with the "topmost" property.

Thanks.

I need an ebay program

totolcm13-Jan-10 2:24

totolcm

13-Jan-10 2:24

I need a program in PHP which can extract the hidden biders from ebay.I will have to insert the item number and the program must show me all bidders of the auction and their emails.
Also the same program must extract the registered contact information for any specified bidder specially the email address

I will pay for this
If someone can help please contact me at totos_back@yahoo.com

Thanks

Pete O'Hanlon13-Jan-10 3:03

Pete O'Hanlon

13-Jan-10 3:03

totolcm wrote:
I need a program in PHP

The only thing you got right is that WPF and PHP both contain the letter P.

totolcm wrote:
I will have to insert the item number and the program must show me all bidders of the auction and their emails.
Also the same program must extract the registered contact information for any specified bidder specially the email address

There's a reason that this info is hidden by a user, and they aren't going to want it made visible by somebody else. I doubt that this functionality is possible without hacking.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

Silverlight error in asp.net aplication

Amit Patel198512-Jan-10 22:37

Amit Patel1985

12-Jan-10 22:37

Hi all,

I am getting the following error in Silverlight when i integrated silverlight with my previus application this error i am not getting on every system ..

Unhandled Error in Silverlight Application An exception occurred during the operation, making the result invalid. Check InnerException for exception details

how to fix this issue.

thanks,

Amit Patel

Abhinav S12-Jan-10 23:13

Abhinav S

12-Jan-10 23:13

You will need to proved some code (or more information - silverlight verion etc) before anyone here can help you.

There are only 10 types of people in this world — those who understand binary, and those who don't.

Mark Salsbery13-Jan-10 6:49

Mark Salsbery

13-Jan-10 6:49

Did you check the InnerException for details?

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Michael Eber21-Jan-10 9:08

Michael Eber

21-Jan-10 9:08

You will basically get this error anytime you have an exception occuring in your application and you are not handling it. You need to go into debug mode and walk through your code to see what the actual exception is.

I've found that the InnerException is basically useless. You must walk through your code in debug mode.