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And how can I get rid of it? I've been able to remove the RowHeader on the left side but the upper left hand corner remains.
While I am at it, I've data binded my DataGrid to an observable collection and when the collection is empty, I get a weird error where that upper left hand corner of the DataGrid begins to stretch all the way to the right and locks the program up. It seems to be stuck on a "OnResize" event in according to the disassembly.
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Can you post a simple example that shows what you are referring to?
I don't see anything on my DataGrids in the upper left corner,
but my property settings could be vastly different than yours.
Mark Salsbery
Microsoft MVP - Visual C++
![Java | [Coffee]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/coffee.gif)
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Image of what I'm speaking of
What my big problem is when I have an empty collection in my data binding, this area area stretches all the way to the right and locks up my program completely. It's stuck in a response to OnResize event I believe, but I'm not entirely sure why an empty collection would cause this.
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I appreciate the picture but I meant a code sample 
I have no idea what kind of collection you're binding to
or how you are configuring the DataGrid.
Mark Salsbery
Microsoft MVP - Visual C++
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I'm researching if an idea we had today at a meeting is possible.
What we need to do is embed an ASP.NET project inside a WPF app. I'm not talking about a browser feature, the ASP.NET app is not published on any server. The idea is to avoid any server setup.
Anyone know if this is possible, or not?
Where it seems there are only borderlines, Where others turn and sigh, You shall rise!
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Why do you want to embed an ASP.NET app inside a WPF one? Could you please elaborate on what you're trying to achieve here?
"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
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It's for demonstration.
The idea is to be able to send the customer a few demo web apps.
The demos should work out-of-the box without any setup.
I know the first idea is to have the demo apps available online, but due to some product specifics, we prefer not to.
Where it seems there are only borderlines, Where others turn and sigh, You shall rise!
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This is an insane question. You'd have to ship your website code AND make sure IIS was set up, then use a browser control to browse to it. How else could it work. The non retarded way to do this is to have the websites in question on a hidden server, which perhaps has some sort of security built in, to try to make sure that only your WPF app could browse to the sample site.
Christian Graus
Driven to the arms of OSX by Vista.
Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.
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In Windows Forms, when I set the position of an UIElement I do it that way:
UIElement.Location = new Point(X, Y);
UIElement.Location.X
UIElement.Location.Y
How can I do this simple task in Silverlight, for example with canvas, called "MyCanvas";
MyCanvas.Margin.Left
MyCanvas.Margin.Top
What is this Margin about?
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TCPMem wrote: What is this Margin about?
From the docs: "The margin is the space between this object and
other objects that will be adjacent when layout creates the UI."
There's a variety of ways to layout elements in Silverlight/WPF beyond
simple XY coordinates. There are elements that layout their child elements,
and there are elements that layout based on their child elements. Maybe at
least glossing over the documentation will help in understanding at least
the basics of layout in Silverlight.
There's Silverlight documentation available both online[^] and offline[^].
Mark Salsbery
Microsoft MVP - Visual C++
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Hello
I have developed a silver light web application.This is working fine when it is running from Visual Studio2008 but if i host it after publishing and accessing via the following link.
URI: http://localhost/WapCosGraph/SilverLightGraphTestPage.aspx
i am getting error:
Webpage error details
User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.2; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)
Timestamp: Fri, 6 Nov 2009 05:20:37 UTC
Message: Unhandled Error in Silverlight 2 Application An exception occurred during the operation, making the result invalid. Check InnerException for exception details. at System.ComponentModel.AsyncCompletedEventArgs.RaiseExceptionIfNecessary()
at SilverLightGraph.ServiceReference1.getEmpWorkIndivIsualCompletedEventArgs.get_Result()
at SilverLightGraph.Page.objService_getEmpViseArea(Object sender, getEmpWorkIndivIsualCompletedEventArgs e)
at SilverLightGraph.ServiceReference1.Service1Client.OngetEmpWorkIndivIsualCompleted(Object state)
Line: 1
Char: 1
Code: 0
URI: http://localhost/WapCosGraph/SilverLightGraphTestPage.aspx
Please help..
-Raghvendr Singh
modified on Friday, November 6, 2009 1:53 AM
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Looks like a web service problem.
Did you adjust the web service's configuration based on the
service's published location?
Mark Salsbery
Microsoft MVP - Visual C++
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thank you for your best Suggestion.
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Is it possible to write and run a basic Hello World Silverlight Application using just Notepad, the C* compiler and the command prompt?
Call me crazy but I like to work from first principles. Gives me a better and in-depth understanding of everything. Also helps me to give my students a fundamental view of programming
Have tried it without success and I am wondering if anyone out there has tried it?
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Hi
Thanks for putting this example. But, everywhere I find example of ArrayList containg strings. Is there a way to bind a collection of custom objects?Please advise.
Something like this instead of string collection :
public AlbumCollection GetAlbums()
{
var albumCollection = new AlbumCollection();
albumCollection.Album.Add(new Album() { Description = "A1 Desc", Name = "A1 Name", Id = 1 });
albumCollection.Album.Add(new Album() { Description = "A2 Desc", Name = "A2 Name", Id = 2 });
albumCollection.Album.Add(new Album() { Description = "A3 Desc", Name = "A3 Name", Id = 3 });
albumCollection.Album.Add(new Album() { Description = "A4 Desc", Name = "A4 Name", Id = 4 });
return albumCollection;
}
--------------
public partial class AlbumCollection
{
[EditorBrowsable(EditorBrowsableState.Never)]
private List<Album> albumField;
[System.Xml.Serialization.XmlElementAttribute("Album")]
public List<Album> Album
{
get
{
if ((this.albumField == null))
{
this.albumField = new List<Album>();
}
return this.albumField;
}
set
{
this.albumField = value;
}
}
}
public partial class Album
{
[EditorBrowsable(EditorBrowsableState.Never)]
private List<Document> documentField;
public int Id { get; set; }
public string Name { get; set; }
public string Description { get; set; }
[System.Xml.Serialization.XmlElementAttribute("Document")]
public List<Document> Document
{
get
{
if ((this.documentField == null))
{
this.documentField = new List<Document>();
}
return this.documentField;
}
set
{
this.documentField = value;
}
}
}
Please advise. Thanks
Pankaj
Follow your goals, Means will follow you ---Gandhi---
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Do you have an example binding to an AlbumCollection
that doesn't work?
I personally make my custom collection classes like this:
public class AlbumCollection : List<Album>
{
}
so AlbumCollection is a collection instead of contains a collection.
Mark Salsbery
Microsoft MVP - Visual C++
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Hi All,
I am just starting with WPF to implement rich GUI application. I have design in my mind and would like you to give suggestion to make it better.
---------------------------------------------------
dropDown1 dropdown2 dropdown3
----------........---------........---------
..........|......|.........|......|.........|
..........|......|.........|......|.........|
..........|......|container|......|container|
Tree view.|......|..with...|......|..with...|
..........|......|.multiple|......|.multiple|
..........|......|list view|......|list view|
..........|......|.........|......|.........|
..........|......|.........|......|.........|
----------.......-----------......-----------
---------------------------------------------------
Above is the design i would like to implement. How it should work?
- a user will select an option from dropDown1 and treeview will be filled with hierarchy of active, pending, closed guests.
- When user will select an option from dropDown2/dropDown3 it will fill respective containers with list views (no of list views will be decided at run time by retrieving count from DB so there is requirement that container should pop up scrollbars if listviews crosses the bounds)
- Now user will move (drag and drop) guest from treeview to list view.
This is how application would work. I need your suggestion if this would be easy to implement in WPF. Also share your view on this.
Thanks,
AksharRoop
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AksharRoop wrote: if this would be easy to implement in WPF
Yes.
That question is really relative to who answers it.
If you don't think it would be easy, then I reckon you
have some studying to do
Mark Salsbery
Microsoft MVP - Visual C++
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Any good sample that would help me with this?
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AksharRoop wrote: Any good sample that would help me with this?
There's tons of sample code floating around the internet and on
this site.
I highly recommend studying at least the first 3 or 4 chapters
of the WPF documentation...It will save you a lot of time in the
long run...
Windows Presentation Foundation[^]
Mark Salsbery
Microsoft MVP - Visual C++
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hi guys,
I've developed a graph control in GDI+ and used a timer in it.. now i'm converting it to WPF. but when i went on and search for a timer there is no timers in WPF... how can i resolve this problem?any alternative to use?
regards,
rangana.
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