Re: LINQ to XML in SL2 ? - WPF Discussion Boards

#realJSOP5-Apr-09 5:39

5-Apr-09 5:39

Alrightie. As much as I hate WPF's unreasonable adoption for your typical desktop application, I actually want to write an app that has a viable need for WPF. Specifically, I'll be trying to implement some control animation and displaying graphics. To give you an idea of what I want to accomplish, check out Media Portal[^]. It has fancy control animation and displays graphics. My app will be a movie database of movies I own, and I want the interface to resemble the one used in Media Portal. I'm not necessarily interested in interfacing with Media Portal, I just want it to look kinda the same.

Any advice on where to start would be greatly appreciated.

"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
-----
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Re: Ambitious "First" Project

Insincere Dave5-Apr-09 13:25

Insincere Dave

5-Apr-09 13:25

There is a sample application called photosuru photosuru for cataloging photos, it's interface is pretty good although its not like mediaportal/mediacenter. It is based around rss subscriptions instead of local storage but you may want to check out the source anyway.
I've looked for an app to do what you described but haven't found one I like. I also began writing one but lost interest. You way want to look at some existing ones for ideas perhaps Delicious Library (Mac) and Revolución (Java, not out yet).
I haven't used any of those composite application libraries perhaps someone else could recommend them if they're appropriate for this type of app?

Re: Ambitious "First" Project

ABitSmart6-Apr-09 2:59

ABitSmart

6-Apr-09 2:59

Hi John, just incase you haven't taken a look at Sacha's Sonic[^] and Geoplaces[^] articles. They are really cool.

Also, take a look at this post on fancy cutom layouts[^]

Hope this helps :>

Re: Ambitious "First" Project

Wes Aday7-Apr-09 4:55

Wes Aday

7-Apr-09 4:55

John Simmons / outlaw programmer wrote:
Any advice

I have kind of hesitated to comment here but for what it's worth:

Try real hard to find something to use to create the actual UI other than using VS. VS is fine for the coding part but for visual designing a WPF UI, it's disappointing.

Line up some WPF resources before hand so you know where you can go for some specific issue. Some places specialize in the graphics portion and some in animation.

Other than that, nothing very specific. Like any other project, decide what you are going to do and how you are going to do it.

Why is common sense not common?
Never argue with an idiot. They will drag you down to their level where they are an expert.
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Re: Ambitious "First" Project

Ray Cassick9-Apr-09 4:13

Ray Cassick

9-Apr-09 4:13

What helped me was figuring out what 'cool things' I wanted to accomplish in my app and then spending some time doing proof of concept designs in a small isolated environment so I could see the effect I wanted in some uncluttered xaml, free of all the other application stuff that would normally be there.

I also second the other comment about using a design tool like the Expression suite to do the graphics work. Although VS is (IMHO) a good development environment, it sucks for doing anything graphical and remotely 'artsy'. You will only get frustrated. Get a copy of the Expression suite to play with to do your design in and keep VS for editing code.

AT least that was my experience with Silverlight. I have not done tons of straight WPF stuff yet, but I assume the experience would be the same.

LinkedIn[^] | Blog[^] | Twitter[^]

LINQ to XML in SL2 ?

Mohammad Dayyan4-Apr-09 11:07

Mohammad Dayyan

4-Apr-09 11:07

Hi.

How can we use LINQ to XML in SilverLight 2 ?

Thanks.

Re: LINQ to XML in SL2 ?

Syed Mehroz Alam4-Apr-09 18:47

Syed Mehroz Alam

4-Apr-09 18:47

The same way as we do in an standard .NET 3.5 application. Here are some links for you:

http://www.silverlightshow.net/items/Using-LINQ-to-XML-in-Silverlight-2.aspx[^]
http://msdn.microsoft.com/en-us/library/cc189074(VS.95).aspx[^]

And, if you having problems with some specific LINQ-to-XML query, try asking the experts at LINQ[^] forum.

Hope that helps.

Regards,
Syed Mehroz Alam

My Blog
My Articles

Computers are incredibly fast, accurate, and stupid; humans are incredibly slow, inaccurate and brilliant; together they are powerful beyond imagination. - Albert Einstein

Re: LINQ to XML in SL2 ?

Braulio Dez12-Apr-09 7:27

Braulio Dez

12-Apr-09 7:27

Used in my project and works pretty well.

/// -------------------------
     Braulio Díez

     DBSchemaEditor.com
     Free Silverlight based DB Schema Modeling Tool
/// -------------------------

simple wpf timer taking up 50% of resources? how do i fix this?

dirtylarry4-Apr-09 2:45

dirtylarry

4-Apr-09 2:45

here's a code snippet

i start a new thread:

Thread timeThread = new Thread(UpdateDateTime);
timeThread.Start();

then i use this to update the labels:

delegate void UpdateDate(string date);
void updateDate(string date)
{
lblDate.Content = date;
}

delegate void UpdateTime(string time);
void updateTime(string time)
{
lblTime.Content = time;
}

void UpdateDateTime()
{

int seconds;
string time;
DateTime dt = DateTime.Now;
seconds = dt.Second;

for (; ; )
{
dt = DateTime.Now;
if (seconds != dt.Second)
{
seconds = dt.Second;
string dateString;
dateString = dt.Month + "/" + dt.Day + "/" + dt.Year;
lblDate.Dispatcher.Invoke(DispatcherPriority.Send, new UpdateDate(updateDate), dateString);
time = dt.Hour.ToString() + ":" + dt.Minute.ToString() + ":" + dt.Second.ToString();
lblTime.Dispatcher.Invoke(DispatcherPriority.Send, new UpdateTime(updateTime), time);

}
}
}

is there any more efficient way to update the clock without taking up 50% of my resources????

Re: simple wpf timer taking up 50% of resources? how do i fix this?

Nicholas Butler4-Apr-09 3:08

Nicholas Butler

4-Apr-09 3:08

Use System.Windows.Threading.DispatcherTimer

Nick

----------------------------------
Be excellent to each other Smile | :)

Re: simple wpf timer taking up 50% of resources? how do i fix this?

dirtylarry4-Apr-09 8:18

dirtylarry

4-Apr-09 8:18

works perfectly, takes up 0% of resources now. thanks so much.

Re: simple wpf timer taking up 50% of resources? how do i fix this?

Christian Graus4-Apr-09 16:14

Christian Graus

4-Apr-09 16:14

That's not a timer, it's an endless loop. What did you expect ?

Christian Graus

Driven to the arms of OSX by Vista.

"I am new to programming world. I have been learning c# for about past four weeks. I am quite acquainted with the fundamentals of c#. Now I have to work on a project which converts given flat files to XML using the XML serialization method" - SK64 ( but the forums have stuff like this posted every day )

Re: simple wpf timer taking up 50% of resources? how do i fix this?

Luc Pattyn5-Apr-09 1:51

Luc Pattyn

5-Apr-09 1:51

buy a quad-core and see it consumes only 25% now.
or insert a Thread.Sleep(500) in the for loop
or use a timer instead of a thread

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

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Multi column Treeview.

hirenkshah3-Apr-09 22:39

hirenkshah

3-Apr-09 22:39

I am finding a solution in wpf which is similar to “treelistview” (http://www.codeproject.com/KB/list/treelistview.aspx)

I have an xml, which has lots of outer an inner node with same number and type of attribute.
According to hierarchy it should create tree and according to attributes it should create columns and display data contains in it.

Thanks
hiren shah
hirenkshah@gmail.com

Thanks
hiren shah

Re: Multi column Treeview.

ABitSmart4-Apr-09 0:50

ABitSmart

4-Apr-09 0:50

Have a look here[^]

EDIT: One more here[^]

Re: Multi column Treeview.

hirenkshah5-Apr-09 19:47

hirenkshah

5-Apr-09 19:47

sir,
Thanks sir, it will help me lot but I wanted to put editable controls like textbox, checkbox etc in single column, According to Node type (Parent or child). With key navigation like F2 selected Row and 2nd columns editable control is appear.

Can you please help me regards to this problem.

Thanks.

Thanks
hiren shah

Re: Multi column Treeview.

ABitSmart5-Apr-09 20:13

ABitSmart

5-Apr-09 20:13

Have you even tried to play around with the controls I shared for you? What did you try which did not work ?

Getting session ID with SL2 !

Mohammad Dayyan3-Apr-09 10:52

Mohammad Dayyan

3-Apr-09 10:52

Hello everybody.

Can we get user session ID with SilverLight 2 ?
Is it possible at all ?

Thank you.

Re: Getting session ID with SL2 !

Mark Salsbery3-Apr-09 12:11

Mark Salsbery

3-Apr-09 12:11

I don't know what "user session ID" you're referring to,
but I'll answer yes and yes.

Mark

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

Re: Getting session ID with SL2 !

Mohammad Dayyan3-Apr-09 23:30

Mohammad Dayyan

3-Apr-09 23:30

Mark Salsbery wrote:
I don't know what "user session ID" you're referring to,

Well, I know a session ID from PHP that we could get it with session_id() function.
How many session ids do we have in SL2 ?

Re: Getting session ID with SL2 !

Mark Salsbery4-Apr-09 7:18

Mark Salsbery

4-Apr-09 7:18

Mohammad Dayyan wrote:
How many session ids do we have in SL2 ?

None.

Session IDs are a server side thing - Silverlight is a client technology.

You can use ASP.NET sessions through ASP.NET/WCF services...

Mark

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

Re: Getting session ID with SL2 !

Mohammad Dayyan4-Apr-09 7:24

Mohammad Dayyan

4-Apr-09 7:24

Thanks Mark .

Mark Salsbery wrote:
You can use ASP.NET sessions through ASP.NET/WCF services...

I'm working just with SL2 (client side) and I wanna get an unique thing for every visitor.
Can we get a something in SL2?
Is there an unique thing in Client side that I could get it with SL2 ?

Would appreciate for helping.

Re: Getting session ID with SL2 !

Mark Salsbery6-Apr-09 6:17

Mark Salsbery

6-Apr-09 6:17

Mohammad Dayyan wrote:
I'm working just with SL2 (client side) and I wanna get an unique thing for every visitor.

Silverlight runs on the client so it's already "unique".

There's no concept of "visitor" on the client side.

Mark

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

Re: Getting session ID with SL2 !

Braulio Dez12-Apr-09 23:49

Braulio Dez

12-Apr-09 23:49

You can inherit the session context in your WCF Services.

Just use:

[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
public class MyService

But remember you will be responsible as well to keep alive that session (maybe service ping every X minutes).

HTH
Braulio

/// -------------------------
     Braulio Díez

     DBSchemaEditor.com
     Free Silverlight based DB Schema Modeling Tool
/// -------------------------

Need ideas for getting data from text file to list view

barker7703-Apr-09 9:48

barker770

3-Apr-09 9:48

I have CSV numeric data in a text file, The first row is the column names, the rest is the data.

x,y,z
1.1, 2.1, 0.3
3.2, 4.1, 0.5
0.3, 4.2, 1.1

I want to read this into my application and display it in a list view. I presume I could use C# to open the file and read/parse each line, then add a row to the list view, but I'm wondering if their are WPF (or .Net) tools that can make this job easier.

I'm creating the text file by hand, so if a better format makes it easier, I'm open to ideas there too.

Thanks,

Mitch

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