Re: wcf or windows service - WPF Discussion Boards

arkiboys30-Dec-10 2:56

30-Dec-10 2:56

I would like to return the data to the GUI from the windows service.
1- Should the GUI call WCF which gets the data from window service?
OR
2- Should the GUI just call the windows service to get the data?
Thanks

#realJSOP30-Dec-10 5:08

#realJSOP

30-Dec-10 5:08

The windows service shouldn't return the data, it should store the data locally, and send out a system-wide message that new data is available. If a desktop application is running that knows about the message, it can then load the data from the local source.

".45 ACP - because shooting twice is just silly" - JSOP, 2010
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You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
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"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

arkiboys30-Dec-10 10:47

30-Dec-10 10:47

I see what you mean and this is what I am trying to devlope at present.
But where does WCF come into this?
Thanks

Pete O'Hanlon31-Dec-10 0:09

31-Dec-10 0:09

Buy some books. Read them. Learn from them. Stop expecting us to spoonfeed you.

I'm not a stalker, I just know things. Oh by the way, you're out of milk.

Forgive your enemies - it messes with their heads

arkiboys31-Dec-10 0:37

31-Dec-10 0:37

Thank you

Michael Agroskin31-Dec-10 12:55

Michael Agroskin

31-Dec-10 12:55

Just you wait. He will start asking questions like "I left my car keys in another jacket. What do I do?"

Michael Agroskin31-Dec-10 12:58

Michael Agroskin

31-Dec-10 12:58

How can somebody be banned or at least be filtered out?

#realJSOP3-Jan-11 0:50

#realJSOP

3-Jan-11 0:50

Michael Agroskin wrote:
How can somebody be banned or at least be filtered out?

This is an inappropriate question. He'll get better, but the question is whether or not we'll all live to see it. There's no reason to ban him, and foltering users in a programming forum is a bad idea.

backgroundworker

arkiboys28-Dec-10 23:52

28-Dec-10 23:52

There is a fully working .net windows application which uses the background worker process in the form.

Using my new silverlight 4 application, I now would like to make it use the functionalities as the application in the winform i.e. background worker, etc...

Question:
As I am using the wcf to retrieve data and pass to the silverlight page, how/where do I use the background worker process? Do I use it in the service or in the silverlight page?

Thanks

Abhinav S29-Dec-10 0:12

Abhinav S

29-Dec-10 0:12

arkiboys wrote:
As I am using the wcf to retrieve data and pass to the silverlight page, how/where do I use the background worker process? Do I use it in the service or in the silverlight page?

Probably depeneds on what the background was doing in the windows forms application.
Was it something to do with the UI - it will go into the Silverlight UI.

The funniest thing about this particular signature is that by the time you realise it doesn't say anything it's too late to stop reading it.

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arkiboys29-Dec-10 0:23

29-Dec-10 0:23

yes, it is to do with the UI.

arkiboys29-Dec-10 0:55

29-Dec-10 0:55

This code is inthe winiform
private void BGworker_ProgressChanged(object sender, ProgressChangedEventArgs e)
{
this.Refresh();
}

How can the this.refresh be translated to be placed inside the silverlight page?
Thanks

Pete O'Hanlon29-Dec-10 1:50

29-Dec-10 1:50

If you are retrieving the data using WCF, then you are already refreshing the data asynchronously. This renders the need to read the data in using a background worker, moot - after all, your UI will still be responsive while the data is being fetched.

I'm not a stalker, I just know things. Oh by the way, you're out of milk.

Forgive your enemies - it messes with their heads

arkiboys29-Dec-10 2:26

29-Dec-10 2:26

You mean there is no need to use the backgroundworker?

Pete O'Hanlon29-Dec-10 3:05

29-Dec-10 3:05

Not if you are already retrieving the data asynchronously (which you are using RIA services). As a test, write a simple data method to return a single integer from the server side but give it a delay of one minute before it returns. When you call this method, your UI will still remain responsive.

I'm not a stalker, I just know things. Oh by the way, you're out of milk.

Forgive your enemies - it messes with their heads

How to change the default icon on IE tab?

Custom WPF Treeview

daveton28-Dec-10 23:49

daveton

28-Dec-10 23:49

Hi,

I'm trying to write a custom Treeview in WPF where child items are linked to their parents by lines.
It's hard to explain, but I'm basically trying to make a custom version of the this treeview so that our designer can customise it as required:

Is there an easy way of doing this? So far I've been hacking away at it and haven't got very far.

Thanks

Re: Custom WPF Treeview

SledgeHammer0129-Dec-10 4:56

SledgeHammer01

29-Dec-10 4:56

The stock WPF treeview doesn't support lines. If you google WPF treeview lines, you'll get some links on how to add it... but, the examples are pretty buggy & 1/2 a$$ed, but they are a good foundation to build upon. I had to do this a while ago too. I can't share the code though because its copyrighted Frown | :(

I did build off the sample code that I found and fixed all the bugs and fleshed out the implementation though.

Jun Du28-Dec-10 9:32

Jun Du

28-Dec-10 9:32

I have built a silverlight web site using Expression Blend 3. The site always displays the default "B"lend icon on the IE tab [link^]. Replacing the icon file "favicon.ico" does not make any difference. Neither does adding the following code to the Head of "default.html" do anything:

<LINK REL="SHORTCUT ICON" HREF="http://www.entribute.com/favicon.ico"></LINK>

Best,
Jun

Unable to open Silverlight Project

yrishi28-Dec-10 1:52

yrishi

28-Dec-10 1:52

Dear All,

I am unable to open my Silverlight project, I am using VS 2008 and Silverlight4 with Windows XP.

Please help on this issue.
-
YRishi

souidi abderrahman28-Dec-10 6:19

souidi abderrahman

28-Dec-10 6:19

that is normal because you use the 2008 version of Visual Studio!
and silverlight 4 it is working with the 2010 version!!!

yrishi28-Dec-10 23:54

yrishi

28-Dec-10 23:54

I think you dont know that which vesion is compatible with VS 2008.

Pete O'Hanlon29-Dec-10 1:48

29-Dec-10 1:48

I think he does. Silverlight 4 is not compatible with VS 2008; it is only available with VS2010. If you go here[^] you can download the relevant items that you need. If you'd gone to this page first, you could have saved yourself a real head scratching.

I'm not a stalker, I just know things. Oh by the way, you're out of milk.

Forgive your enemies - it messes with their heads

Abhinav S28-Dec-10 6:20

Abhinav S

28-Dec-10 6:20

VS2008 does not support Silverlight 4.
Install Silverlight 3 or move to VS2010.

The funniest thing about this particular signature is that by the time you realise it doesn't say anything it's too late to stop reading it.

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