New Features in Silverlight 3

Out-of-Browser: WCF Service is not called

TriumphOfTruth — Mon, 30 Nov 2009 10:58:11 GMT

Hi!

I am running my app as Out-of-Browser. But the first call to the WCF service that should give me my data fails. Any idea what could be the reason? In-Browser it works fine. And even when I installed the application from my localhost it works fine. Just after installing from my real website it fails.

Out-of-Browser: Application does not run

TriumphOfTruth — Mon, 30 Nov 2009 10:56:58 GMT

I installed my app as Out-of-Browser application. Directly after installing it runs fine. However, when I double-click the desktop shortcut nothing happens. What might be the reason?

SIngle key press navigate to Combo box Items

devalam44 — Thu, 26 Nov 2009 05:05:47 GMT

Hi All

I am working on silverlight3.0. I'm binding a combo box with a huge number of records through a collection. If I want to navigate to any item in combo box i have to scroll through all the items, but I should be able to navigate using keyboard,for eg, if i press 's' key, it has to navigate the items starting with 's'. This feature is inbuilt in asp.net but it is not working in silverlight.

can anyone help me regarding this

Thanks in advance.

converting xml file to csv File using Linq

pankajkshingane — Thu, 26 Nov 2009 02:20:12 GMT

hello to all I want to design one class which can convert any type of xml file file into csv file That is class should be such a generic that it slould accept any xml format & convert it into csv file the class should not dependable on file format using Linq & C#

can anyone please help me its very very urgent............

Grid with loaded image to image on server

dcooke — Wed, 25 Nov 2009 21:32:12 GMT

I have canvas that looks like: The image is set by a filedialog, and i am able to convert the image to a byte[] and can transfer it, via a webservice, to the server, then save, without any issues. I would like to transfer the PreviewCanvas to the server as a byte[] as well and save that as well. Or if transfering it as a byte[] isn't possible, any other way of accomplishing it is fine. The closest thing i have found is code that creates a writeablebitmap and then attempts to take the pixels and convert to byte[]. This hits security issues... thanks

Silverlight 3 Deployment issue.

RogerGu — Wed, 10 Jun 2009 15:07:34 GMT

I can run it on my dev machine, but I cannot run it when deployed to a Win2003 server:

Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; WOW64; Trident/4.0; GTB6; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; .NET CLR 3.0.30618; .NET CLR 3.5.30729; OfficeLiveConnector.1.3; OfficeLivePatch.0.0; MS-RTC LM 8)
Timestamp: Wed, 10 Jun 2009 15:02:33 UTC

Message: Sys.InvalidOperationException: ManagedRuntimeError error #4004 in control 'Silverlight1': System.TypeLoadException: Could not load type 'System.Windows.Controls.ChildWindow' from assembly 'System.Windows.Controls, Version=2.0.5.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.
   at Prophet2.App.Application_UnhandledException(Object sender, ApplicationUnhandledExceptionEventArgs e)
   at MS.Internal.Error.CallApplicationUEHandler(Exception e)
   at MS.Internal.Error.GetXresultForUserException(Exception ex)
Line: 453
Char: 17
Code: 0
URI: http://x.x.x.x/ScriptResource.axd?d=vYli1Nwje05mrOoHrj0Ojg0cmWsvip1xvKgiEg7z5l8pLO4uLEZcsaeRrkpliV6ViM9oej9-mFO6VYarb-_Iyw2&t=3bb1633f

Please note that I have performed these steps (thanks mdstephens):

http://silverlight.net/themes/silverlight/forums/thread.aspx?ThreadID=20831&AspxAutoDetectCookieSupport=1

-- update --

any chance this is related to the Silverlight Toolkit?

http://www.codeplex.com/Silverlight

It is not required to install that on the deployement box, corrrect?

DLL file missing from .xap file

ken.smith — Thu, 11 Jun 2009 08:30:48 GMT

I have a solution with three separate Silverlight projects in it + a separate web project. Two of the Silverlight projects are "Application" projects (SlideLinc.Client and SlideLinc.Client.Whiteboard), and the third is a Silverlight library project that I'm trying to use to host some shared style resource (SlideLinc.Client.Resources).

My problem (among many) is that the Silverlight library project doesn't show up in the .xap file that sits in the web site's /ClientBin directory.

The output from the build shows the first two projects getting inserted into the .xap file, but not the third:

Begin Xap packaging
Packaging SlideLinc.Client.dll
Packaging SlideLinc.Client.Whiteboard.dll
Packaging System.ComponentModel.DataAnnotations.dll
Packaging System.ComponentModel.dll
Packaging System.ServiceModel.PollingDuplex.dll
Packaging System.Windows.Controls.dll
Packaging System.Windows.Controls.Input.Toolkit.dll
Packaging System.Windows.Controls.Layout.Toolkit.dll
Packaging System.Windows.Controls.Navigation.dll
Packaging System.Windows.Ria.dll
Packaging System.Xml.Serialization.dll
Packaging System.Windows.Controls.Toolkit.dll
Packaging ServiceReferences.ClientConfig
Packaging scripts\Camera.js
Packaging scripts\FlashHost.js
Packaging AppManifest.xaml
Xap packaging completed successfully

And when I open the .xap file (by renaming it to .zip), the SlideLinc.Client.Resource.dll isn't in there.

Before y'all ask, I'm referencing the resource DLL from both the "Application" projects. And the DLL is being built successfully:

------ Rebuild All started: Project: SlideLinc.Client.Resources, Configuration: Debug Any CPU ------
C:\Windows\Microsoft.NET\Framework\v3.5\Csc.exe /noconfig /nowarn:1701,1702 /nostdlib+ /errorreport:prompt /warn:4 /define:DEBUG;TRACE;SILVERLIGHT /reference:"c:\Program Files\Reference Assemblies\Microsoft\Framework\Silverlight\v3.0\mscorlib.dll" /reference:"c:\Program Files\Reference Assemblies\Microsoft\Framework\Silverlight\v3.0\System.Core.dll" /reference:"c:\Program Files\Reference Assemblies\Microsoft\Framework\Silverlight\v3.0\system.dll" /reference:"c:\Program Files\Reference Assemblies\Microsoft\Framework\Silverlight\v3.0\System.Net.dll" /reference:"c:\Program Files\Reference Assemblies\Microsoft\Framework\Silverlight\v3.0\System.Windows.Browser.dll" /reference:"c:\Program Files\Reference Assemblies\Microsoft\Framework\Silverlight\v3.0\System.Windows.dll" /reference:"c:\Program Files\Reference Assemblies\Microsoft\Framework\Silverlight\v3.0\System.Xml.dll" /debug+ /debug:full /optimize- /out:obj\Debug\SlideLinc.Client.Resources.dll /resource:obj\Debug\SlideLinc.Client.Resources.g.resources /target:library Dummy.cs Properties\AssemblyInfo.cs

Compile complete -- 0 errors, 0 warnings
SlideLinc.Client.Resources -> C:\source\slidelinc\branches\28_SlideLincClient_ken\SlideLinc.Client.Resources\Bin\Debug\SlideLinc.Client.Resources.dll

I tried deleting the project and re-implementing it as a Silverlight Application (instead of a Silverlight Class Library), but no go.

Any other suggestions? Am I missing something?

How do I create an instance of BitmapImage from WriteableBitmap

doncasteel8587 — Sat, 28 Nov 2009 16:09:01 GMT

I'm successfully creating a WriteableBitmap and using the result as an imageBrush. I'm using it to colorize a B&W base image to a color selected by the client user. (This part is working great).

However in another section of the site, I need to create an instance of the BitmapImage. It can no longer be directly tied to the WrieableBitmap. (I re-build it as necissary)

The problem is in Kit3D, A Kit3D ImageBrush MUST be created from a unique INSTANCE of System.Windows.Media.ImageBrush. It can no longer be tied to the WriteableBitmap.

In other words, creating an ImageBrush for Kit3D works if I'm using an actual image file for System.Windows.Media.ImageBrush. But will not work using an imageBrush created from my WriteableBitmap.

I've considered writing an image file to IsolatedStorage then reading it back in, but with multiple base images (B&W) and 20 selectable colors, IsolatedStorage seems out of the question.

The only way I'm able to get the site to work is to make an ImageBrush from the B&W image for Kit3D and leave it black and white.

Any help will be greatly appreciated!

Don

Visual Studio throws "unhandled error" on Jesse Liberty validation example project WHY?

TBink — Fri, 11 Sep 2009 12:01:46 GMT

I setup Jesse Liberty's mini-tutorial "Silverlight Validation in Detail" as a visual studio solution. Absolutely verbatim. Yet when I ran it an an unhandled error tripped up the debugger in the get/set for ISBN10 (at line 36 ... the debugger opted out).

** I'd very much appreciate a note from someone at MS and/or Visual Studio if this work around is required or if I've done something wrong... that makes this work around unnecessary **

 private string isbn10;

  25:     public string ISBN10

  26:     {

  27:       get

  28:       {

  29:         return isbn10;

  30:       }

  31:       set

  32:       {

33:

  34:         if ( value.Length != 10 )

  35:         {

  36:           throw new ArgumentException( "Must be exactly 10 integers long" );

  37:         }

38:

  39:         char[] isbnAsArray = value.ToCharArray();

40:

  41:         foreach ( char c in isbnAsArray )






I found a solution here:

http://silverlightfeeds.com/post/958/Not_Breaking_on_ValidationException_take_2.aspx  
by Jeff Handley



Click on Debug->Exceptions (Ctrl+D, E for your keyboard folks) 
Click on Add… 
Select the Type as “Common Language Runtime Exceptions” 
Type the name as System.ComponentModel.DataAnnotations.ValidationException and click OK. 
You’ll now see this exception in the list.  Uncheck “User-unhandled just for this exception, and click OK.

----------

This works like a charm... but I'm completely puzzled by why none of the examples I've seen mention this. Is there a patch for Visual Studio that I'm missing? How could Jesse have missed this (and everyone else who's written examples

VERY puzzled
tom
(and many thanks to Jeff for providing the solution"

Silverlight 4 Wishlist

BigDubb — Wed, 17 Jun 2009 15:08:18 GMT

Seeing as SL3 is just around the corner might as well start the discussion around what the community would like to see in SL4.

1. Ability to define chrome on OOB applications

2. Deep linking ability/navigation in OOB applictions.

3. Printing Capabilities.

DataForm ComboBox

DeborahK — Tue, 24 Nov 2009 22:52:47 GMT

I have a combobox bound to a DomainDataSource. If the ComboBox is displayed by itself, it works fine and is populated with the correct values.

If I copy the ComboBox and paste it in a DataField, it no longer populates. I tried adding the SelectedItem property, but it did not seem to help.

Here is my DomainDataSource:

        <ria:DomainDataSource x:Name="GenderDataSource" 
                              AutoLoad="True"
                              QueryName="GetGendersQuery">
            <ria:DomainDataSource.DomainContext>
                <services:IACodesContext/>
            </ria:DomainDataSource.DomainContext>
        </ria:DomainDataSource>
        <!--<ComboBox x:Name="GenderComboBox" 
                    ItemsSource="{Binding Data, ElementName=GenderDataSource}"
                    DisplayMemberPath="CodeText"/>-->

The combobox code commented out above works fine (when it is not commented out, of course<G>).

Here is my DataForm:

            <dataFormToolkit:DataForm x:Name="PersonInfoDataForm"
                    Grid.Row="3" Grid.ColumnSpan="3"
                    AutoGenerateFields="False"
                    Header="Person Profile"
                    CurrentItem="{Binding SelectedItem, ElementName=PersonGrid}">
                <dataFormToolkit:DataForm.EditTemplate>
                    <DataTemplate>
                        <StackPanel dataFormToolkit:DataField.IsFieldGroup="True">
                            <dataFormToolkit:DataField 
                                LabelStyle="{StaticResource LabelStyle}">
                                <TextBox Text="{Binding LastName, Mode=TwoWay}"/>
                            </dataFormToolkit:DataField>
                            <dataFormToolkit:DataField 
                                LabelStyle="{StaticResource LabelStyle}">
                                <TextBox Text="{Binding FirstName, Mode=TwoWay}"/>
                            </dataFormToolkit:DataField>
                            <dataFormToolkit:DataField 
                                LabelStyle="{StaticResource LabelStyle}">
                                <TextBox Text="{Binding MiddleName, Mode=TwoWay}"/>
                            </dataFormToolkit:DataField>
                            <dataFormToolkit:DataField 
                                    LabelStyle="{StaticResource LabelStyle}">
                                <controls:DatePicker 
                                    SelectedDate="{Binding DateOfBirth, Mode=TwoWay, Converter={StaticResource DateOnlyConverter}}"/>
                            </dataFormToolkit:DataField>
                            <dataFormToolkit:DataField 
                                LabelStyle="{StaticResource LabelStyle}">
                            <ComboBox x:Name="GenderComboBox" 
                                ItemsSource="{Binding Data, ElementName=GenderDataSource}"
                                DisplayMemberPath="CodeText"
                                SelectedItem="{Binding Gender, Mode=TwoWay}">
                            </ComboBox>
                        </dataFormToolkit:DataField>
                    </StackPanel>    
                    </DataTemplate>
                </dataFormToolkit:DataForm.EditTemplate>
        </dataFormToolkit:DataForm>

In this code, the Combobox is not populated. Any idea what else I need to do in this case?

THANKS!

ChildWindow background shading

StephenClarke — Wed, 25 Nov 2009 04:11:36 GMT

The background shading effect that occurs when a ChildWindow pops up is very nice.

However in some cases I want to use nested dialogs, and when this happens the background becomes doubly darkened, which does not look so good.

How can I alter the background shading of a ChildWindow so that the background is only darkened once, with the first popup?

Balloon Tooltip

nidhis20 — Tue, 24 Nov 2009 11:10:25 GMT

Can anyone help me in creating a balloon Tooltip in silverlight3 ?

Please help me as soon as possible

Cell Merging in Silverlight 3 DataGrid possible?

AbhikS — Mon, 23 Nov 2009 03:18:54 GMT

Hi,

Is there any way cells a particular column in Silverlight 3 Datagrid can be merged?

I am talking about DataGrid control and not of the Grid (layout).

Any pointers for the same would be really helpful.

Thanks a lot in advance!

Cheers!

Abhik

Silverlight 3 asynchronous input validation

blhussey242 — Sat, 25 Apr 2009 16:47:35 GMT

Is there any way to do input validation via the setter property with an asynchronous calls. For example I have a bound textbox that i want to make a call to a web serivce or database that will tell me if the username exists?

Finger Print scanner in WPF

hareen — Thu, 26 Nov 2009 09:38:40 GMT

Can anyone suggest me what kind of figure print scanner (manufacturer) I have to use for WPF applications.

Magnetic card reader in WinCE

hareen — Thu, 26 Nov 2009 09:42:22 GMT

Can anyone tell me how to connect Magnetic card reader to Windows CE APPLICATION?

change grid background by a judgement

AlexKenyon — Thu, 26 Nov 2009 10:22:10 GMT

I get a problem with change my application background.

here is a problem,in my application all the page is surround by a grid,the style link to a style in app.xmal,i want to change this style when i want to change the grid' background,this will need when the application start.

http://blogs.msdn.com/corrinab/archive/2009/11/24/9927729.aspx mike taulty's solution is really good,and it works fine,but i can not use it ,cause this solution used the datacontext which will affect my logic.

anyone get another solution?

thanks very much.

Scrollviewer does not scroll down on tab down in a DataForm

D1d13r — Thu, 24 Sep 2009 23:43:26 GMT

Hello,

I have a long DataForm that goes below the fold of the page and requires the use of a ScrollViewer. The user is complaining that the ScrollViewer is not automatically scrolling down on tab down from one field to another in the DataForm once it goes below the fold.

Is this a bug am I doing something wrong?

Thanks.

Didier

ShaderEffect vs. RotateTransform

FBrink — Wed, 25 Nov 2009 10:51:38 GMT

I have been playing around with some ShaderEffects – (from the WPFFX library) – but am experiencing a strange problem. I don’t think it is WPFFX specific – but maybe a more general shader problem.

When applying an effect (ColorTone) to an image – it works fine.

But if I rotate (RotateTransform) the image I get a pretty degraded output.

If on the other hand I apply the effect at a higher level in the visualtree (above the rotatetransform) the shadereffect again works fine.

Here’s a link to an example:

http://cid-6d7b69f58faf62f6.skydrive.live.com/self.aspx/.Public

Can anyone help me – or at least give an explanation? Thanks.

/Flemming Rosenbrandt

Rounded corner AutocompleteBox

shanenarri — Wed, 25 Nov 2009 10:12:11 GMT

Hi,

I am able to make a rouded corner textbox.

But,

Is it possible to make a Autocompletebox Textbox with rouded corners? Usually autocompletebox comes with default rectangular textbox. Is it possible to make a rounded corner Autocompletebox textbox??

-Shanenarri.

Edit in place

loopyno — Wed, 25 Nov 2009 06:57:14 GMT

hi everybody

can you please help me with something ... i am new to Silverlight (and when i say new i mean really new :) )

i want to apply the "Edit in place" effect to any kind of text control.

Here is an example:

imagine that you have 3 entries (comments) for a post in your blog and the guy who added the second entry wants to edit it. What i want to happen is that when he clicks his comment it should turn into any kind of text element so that he can edit it.While editing if the texts expands to a new row, the elements below it should rearrange (go lower) and after he is done editing (when the text control losses focus) the comment should become again non-editable

hope i was clear enough and thanks in advance

loopyno

Update parent control values when User Logged-In

nmreddy83 — Tue, 24 Nov 2009 13:22:51 GMT

Hi,

In my Silverlight application I have one page (MainPage.xaml) it has one Label (to show log in Status) and one naviage:Frame. On page Load I am loading Login.xaml page to navigate:Frame.

Once user enters his credentials, I am validating using Authentication Service. Now my query is; I would like to update Label which is located in "MainPage.xaml" saying "Authenticated" once user enters his valid credentials in Login.xaml page.

Can you please help me to update MainPage control values based on Child window (navigate frame) actions.

thank you,

-nm reddy

Upgrading to Silverlight 3

baud9600 — Fri, 13 Nov 2009 17:36:11 GMT

In order for clients with no internet access to install Silverlight I use the PluginNotInstalledTemplate, change the href to point to a local copy of the Sl runtime and the runtime is installed from it. That works fine for SL2 and SL3 when there is no Silverlight runtime already installed.

It looks like when a client has SL2 installed and the Silverlight application is a Silverlight 3, a message popups with the text "This page requires a more recent version of Silverlight. Would you like to install the latest version from the Silverlight Web Site?" and it tries to download from the Microsoft url which is not accessible for these clients with no internet access.

Even when the Silverlight.js is changed for the Silverlight.fwlinkRoot to point to a local copy of the runtime executable it still doesn't work.

Is there a workaround to upgrade SL2 to SL3 from a local runtime executable for clients with no internet access?

Any help is appreciated

Thanks

Sessions in Silverlight 3.0

Rahul Jain — Tue, 24 Nov 2009 17:51:24 GMT

Hello,

I am just creating a sample application in silverlight. I want to create session in silverlight [ as we are creating in asp.net ]. Is there is any functionality available to create session in silverlight. Storing Login UserID and SessionID in Memory. So that we can use in our application,

If Yes then please show me how we can do it.

Thanks