WPF Discussion Boards

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.

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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

Pete O'Hanlon

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.

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arkiboys29-Dec-10 2:26

29-Dec-10 2:26

You mean there is no need to use the backgroundworker?

How to change the default icon on IE tab?

Pete O'Hanlon29-Dec-10 3:05

Pete O'Hanlon

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.

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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

Pete O'Hanlon

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.

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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.

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Context help in silverlight 4

Ravi Sant29-Dec-10 5:04

Ravi Sant

29-Dec-10 5:04

Sorry, Silverlight 4 and up versions will not run on VS2008.

One has to upgrade to VS2010 for it. Smile | :)

KaurGurpreet27-Dec-10 23:02

KaurGurpreet

27-Dec-10 23:02

Hi,

I am using silverlight 4. How can i display context sensitive help?

Gurpreet

WPF WebBrowser control - how to retrieve user selection?

devvvy27-Dec-10 7:56

devvvy

27-Dec-10 7:56

hello, WPF WebBrowser control - how to retrieve user selection? Thanks

Reference...[^]

dev

WPF: Browse For Folder Dialog

Slacker00727-Dec-10 5:43

Slacker007

27-Dec-10 5:43

I know there is no control like this for .Net 4.0 WPF (there is for Win Forms)...I'm pretty sure about that...could be wrong. Anyways, I have done some browsing here at CP and on Google and I have not found a clear-cut solution to the problem. Do I need to write one myself (preferably not) or is there an affordable TPC out there that I could use?

Thanks.

_Erik_27-Dec-10 6:07

_Erik_

27-Dec-10 6:07

The most straightforward way is to add a reference to System.Windows.Forms and create the dialog with code:

using (FolderBrowserDialog dlg = new FolderBrowserDialog())
{
    if (dlg.ShowDialog() == DialogResult.OK)
    {
        // Whatever
    }
}

However, I wrote one myself some years ago, becouse I needed a different visual looking. It is not hard, but I recommend you to build the tree of folders on demand, I mean, build each subtree level just when the user wants to expand a tree node. Building the whole tree of folders might take too much time.

Abhinav S27-Dec-10 7:04

Abhinav S

27-Dec-10 7:04

One way is, as mentioned in the first answer, to create a wrapper around the win32 class.
Another way is shown in this article[^].

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mj2c25-Jan-11 11:01

mj2c

25-Jan-11 11:01

Bit late but this is what you want if you are still interested

http://code.msdn.microsoft.com/WindowsAPICodePack

It's got all sorts in there.