WPF Discussion Boards

Re: How can I use Application Idle Event in WPF?

Christian Graus28-Jun-09 23:32

Christian Graus

28-Jun-09 23:32

Idle in what way ?

Christian Graus

Driven to the arms of OSX by Vista.

"! i don't exactly like or do programming and it only gives me a headache." - spotted in VB forums.

I can do things with my brain that I can't even google. I can flex the front part of my brain instantly anytime I want. It can be exhausting and it even causes me vision problems for some reason. - CaptainSeeSharp

Re: How can I use Application Idle Event in WPF?

Kunal Chowdhury «IN»29-Jun-09 2:15

Kunal Chowdhury «IN»

29-Jun-09 2:15

idle means => user is not doing anything using any input (like: keyboard or mouse etc.). He is not using the machine for a long period (say about 5 minutes)

Regards,
- Kunal Chowdhury (My Blog)

Re: How can I use Application Idle Event in WPF?

Ravi Mori29-Jun-09 2:40

Ravi Mori

29-Jun-09 2:40

I can give you some hint..hope this help you..
Make some global variable say 'xyz' in app.xaml and initialize it to 0.

and take one timer whose code executes after each minute and increase value of variable 'xyz' by 1 and if it become 5, then write code what you want..

and for anything you do using keyboard or mouse input at that time make the value of 'xyz' to 0..

Re: How can I use Application Idle Event in WPF?

Kunal Chowdhury «IN»29-Jun-09 3:44

Kunal Chowdhury «IN»

29-Jun-09 3:44

Dear Ravi,
Thanks for the suggestion. Actually I was not in desk at that time when u pinged me. I will check the same & will inform u tomorrow . Thanks again.... Smile | :)

Regards,
- Kunal Chowdhury (My Blog)

Re: How can I use Application Idle Event in WPF?

Kunal Chowdhury «IN»29-Jun-09 20:02

Kunal Chowdhury «IN»

29-Jun-09 20:02

Ravi,
I checked the same. This will not help me in my case.

ravimori wrote:
for anything you do using keyboard or mouse input at that time make the value of 'xyz' to 0..

This will be quite difficult if I use two many Windows in my application. This will also produce huge garbage code.... Frown | :(

Lets see.... if anyone has any solution for that....
Hope, will get the answer soon.... Smile | :)

Regards,
- Kunal Chowdhury (My Blog)

Need some feed back on my new Silverlight articles

ProtoBytes28-Jun-09 16:43

ProtoBytes

28-Jun-09 16:43

Hi,

I just completed two articles on Silverlight. The first is real basic 1.0 stuff. The second is 2.0 and more architechuraly involved but geard toward developers. I would like some community feed back and any performance results you find while testing the code. I am working on an older Pentuim 4 willimina with low memory. I'm getting bad performance results, I'd like to know what beefier systems report.

Thanks in Advance,

~TheArch

Re: Need some feed back on my new Silverlight articles

ProtoBytes28-Jun-09 16:46

ProtoBytes

28-Jun-09 16:46

~err!

The Link!

XAML Graphics Series - Part 2 Silverlight 2.0 Desktop Art Animation[^]

Silverlight 3 Offline Application from Notification Area

nmreddy8328-Jun-09 8:11

nmreddy83

28-Jun-09 8:11

I am curious to put my Out Of Browse application in Notification Area (Tray Icon). Especially when user minimizes my Out of Browser applications it should keep one ICON in Notification Area. Once he gets some alert or To-Do operation, it will show one “Notification Window” (like Outlook New Mail Notification Window). Is it possible to these kind of operations in Silverlight

Re: Silverlight 3 Offline Application from Notification Area

Mark Salsbery29-Jun-09 9:29

Mark Salsbery

29-Jun-09 9:29

I'm pretty sure the trust restrictions of Silverlight apps
will prevent you from using the system tray.

Mark

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

Re: Silverlight 3 Offline Application from Notification Area

nmreddy8329-Jun-09 12:24

nmreddy83

29-Jun-09 12:24

thank you Mark,
Can we customize Silverlight by extending dll's or can we use any third party controls to take care of Tray Area from Silverlight Out Of Browser application..

I am looking for these from long time, I believe once we get these futures we can do lot for our clients.

thank you,
-nm reddy

Re: Silverlight 3 Offline Application from Notification Area

Mark Salsbery29-Jun-09 13:43

Mark Salsbery

29-Jun-09 13:43

Silverlight is a browser plugin and thus is meant to be cross-platform compatible.

The notification area is Windows specific. It's unlikely we'll see this
feature in Silverlight any time soon.

You should use WPF for full trust, full .NET framework features.

Mark

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

Re: Silverlight 3 Offline Application from Notification Area

Pete O'Hanlon29-Jun-09 21:35

Pete O'Hanlon

29-Jun-09 21:35

You can't do this because Silverlight is meant to respect the security Sandbox of the browser. That means that there are lots of operations you can't do such as interact with the desktop or file system outside of Isolated Storage. This is important because it helps to protect you from downloading malicious content from outside sources.

If you need desktop interaction, write a WPF application and download it using Click Once.

"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

WPF MediaElement to play a UDP Stream

jklanka27-Jun-09 21:00

jklanka

27-Jun-09 21:00

Hi All,

I am streaming a video using a VLC player swith UDP option. So that I can open the stream from any other PC's VLC player using the URL. For example udp://@239.239.239.1:1234

But I am trying WPF MediaElement to open the stream and it is not working with a xaml file. Please help me how I can I play a VLC stream on a XAML file.

Thanks

jklanka

Re: WPF MediaElement to play a UDP Stream

Christian Graus28-Jun-09 10:33

Christian Graus

28-Jun-09 10:33

The MediaElement control, is basicallly Windows Media Player under the hood. So, if WMP can't play it, neither can the MediaElement.

To design a screen dynamically at runtime using WPF 2008,C#

cbe_pav27-Jun-09 3:13

cbe_pav

27-Jun-09 3:13

Hi All,

Im new to this platform. How to design an entire screen dynamically at run time using WPF 2008(C#)?

Can any one help me... Thanks in advance...

Re: To design a screen dynamically at runtime using WPF 2008,C#

Mark Salsbery27-Jun-09 8:37

Mark Salsbery

27-Jun-09 8:37

Dynamic User Interfaces in WPF[^]

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

Re: To design a screen dynamically at runtime using WPF 2008,C#

cbe_pav29-Jun-09 0:12

cbe_pav

29-Jun-09 0:12

Thanks for ur reply.

Now i need to add WPF CheckboxList at runtime time based on the Input values.

For example,If the user selects 2 SQL tables,I ve to dynamically create 2 CheckBoxlist controls for those tables with their corresponding table fields.

Can any one pls help me...

Thanks in advance...

Ambiguous Match Found [SOLVED]

#realJSOP26-Jun-09 6:17

#realJSOP

26-Jun-09 6:17

Related to my attached properties question, I created a style based on the original style, like so:

<Style x:Key="UDPGlobalGridViewStyle" TargetType="{x:Type udpcontrols:UDPTelerikGridView}"
                  BasedOn="{StaticResource UDPRadGridViewTopTitle}">
    <Setter Property="udpcontrols:UDPTelerikGridView.TitleBarVisibility" Value="Visible" />
    <Setter Property="udpcontrols:UDPTelerikGridView.TitleBarBackground" Value="Black" />

    <!--<Setter Property="udpcontrols:UDPTelerikGridView.TitleBarBorderBrush" Value="Black" />-->

    <Setter Property="udpcontrols:UDPTelerikGridView.TitleBarBorderThickness" Value="1" />
    <Setter Property="udpcontrols:UDPTelerikGridView.TitleTextForeground" Value="White" />
    <Setter Property="udpcontrols:UDPTelerikGridView.TitleTextFontFamily" Value="Arial" />
    <Setter Property="udpcontrols:UDPTelerikGridView.TitleTextFontSize" Value="16" />
    <Setter Property="udpcontrols:UDPTelerikGridView.TitleTextFontWeight" Value="Bold" />
    <Setter Property="udpcontrols:UDPTelerikGridView.TitleTextFontStyle" Value="Italic" />
    <Setter Property="udpcontrols:UDPTelerikGridView.GridPrintButtonVisibility" Value="Hidden" />
    <Setter Property="udpcontrols:UDPTelerikGridView.GridExportButtonVisibility" Value="Visible" />
    <Setter Property="udpcontrols:UDPTelerikGridView.GridExportButtonIsEnabled" Value="True" />
</Style>

The line that's commented out generates the following compiler error:

Ambiguous match found

I don't know why.

EDIT/SOLUTION ----------------------------

The problem was the result of too hastily copy/pasting. Two of my Get properties had the same name and returning different types.

"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

modified on Friday, June 26, 2009 9:38 PM

Re: Ambiguous Match Found

Pete O'Hanlon26-Jun-09 9:55

Pete O'Hanlon

26-Jun-09 9:55

Change the style name - see if it works OK with a different name. I suspect you have a conflict where the Key is declared twice, but in different cases.

"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

Re: Ambiguous Match Found

#realJSOP26-Jun-09 15:38

#realJSOP

26-Jun-09 15:38

See OP - I found out what it was.

Setting Label.Content via attached property [SOLVED]

#realJSOP26-Jun-09 5:01

#realJSOP

26-Jun-09 5:01

I have the following line in a XAML style:

<Setter Property="udpcontrols:UDPTelerikGridView.TitleTextContent" Value="Search Results" />

In the custom control class, the attached property is defined like so:

//--------------------------------------------------------------------------------
public static readonly DependencyProperty TitleTextContentProperty = 
                       DependencyProperty.RegisterAttached("TitleTextContent", 
                                                           typeof(ContentControl), 
                                                           typeof(UDPTelerikGridView));

public static void SetTitleTextContent(UIElement element, ContentControl value)
{
	element.SetValue(TitleTextContentProperty, value);
}

public static ContentControl GetTitleTextContent(UIElement element)
{
	return (ContentControl)element.GetValue(TitleTextContentProperty);
}

And I have this code in the OnApplyTemplate method:

Label titleText = base.GetTemplateChild("PART_Title") as Label;
if (titleText != null)
{
	titleText.Content    = GetTitleTextContent(this);
}

The WPF designer is telling me this:

Error 2 - 'Search Results' is not a valid value for the 'Comet.UDPControls.UDPTelerikGridView.TitleTextContent' property on a Setter.

I'm off to google (yet again), but I thought I'd post this in advance. Anyone have any ideas?

========================

Solution - I changed the attached property type from ContentControl to object.

modified on Saturday, June 27, 2009 9:43 AM

Re: Setting Label.Content via attached property

Gideon Engelberth26-Jun-09 9:49

Gideon Engelberth

26-Jun-09 9:49

It looks to me that you are trying to set the TitleTextContent property (of type ContentControl) with a String value. As the error message says, a String is not a valid value for a ContentControl.

Perhaps you meant to declare the property as Object?

Re: Setting Label.Content via attached property

#realJSOP26-Jun-09 15:42

#realJSOP

26-Jun-09 15:42

The reason I was doing that is because I thought WPF was smart enough to make the call. Afterall, setting Label.Content in CS or in XAML can be done like so:

Label.Content = "my string";

<Label Content="my string" />

In both instances, the Content property is *still* a ContentControl.

Re: Setting Label.Content via attached property

Gideon Engelberth26-Jun-09 15:56

Gideon Engelberth

26-Jun-09 15:56

Actually, it's not. Looking in the object browser shows that the Content property is of type Object. Perhaps you are thinking of how the Content property is *on* ContentControl?

Re: Setting Label.Content via attached property

#realJSOP26-Jun-09 23:57

#realJSOP

26-Jun-09 23:57

Yeah, I found that out. I changed it all to object, and it worked.

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