Re: Selected Value in Combobox - WPF Discussion Boards

Error communicating with WCF service made through (WCF Software Factory (tool by microsoft))

23-Jul-10 11:50

We implemented a workaround.

.45 ACP - because shooting twice is just silly
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nitin_ion21-Jul-10 2:12

nitin_ion

21-Jul-10 2:12

Following is the exception that occurs at client side(Silverlight) when we add reference of WCF service created through WCF Software Factory (tool by microsoft).

“An error occurred while trying to make a request to URI 'http://localhost:58159/WssWCFService.Host/WssService.svc'. This could be due to attempting to access a service in a cross-domain way without a proper cross-domain policy in place, or a policy that is unsuitable for SOAP services. You may need to contact the owner of the service to publish a cross-domain policy file and to ensure it allows SOAP-related HTTP headers to be sent. This error may also be caused by using internal types in the web service proxy without using the InternalsVisibleToAttribute attribute. Please see the inner exception for more details.”

I have already put the CrossDomain.xml and clientaccesspolicy.xml file at root location of WCF hosting project but still error exists.

Note: If we create simple WCF service without using WCF software factory tool then that works fine with existing silverlight application.

Any suggestions from anyone who has faced this type of problem will be appreciable

Selected Value in Combobox

yogesh_kumar_agarwal20-Jul-10 19:20

yogesh_kumar_agarwal

20-Jul-10 19:20

Dear All,

Here is my combobox in Silverlight

<br />
<ComboBox x:Name="drpUserList" Width="200" Height="30" Margin="5" VerticalAlignment="Center"  HorizontalAlignment="Left" DisplayMemberPath="FullName" SelectedValuePath="UserNumber"><br />

and i use

<br />
drpUserList.ItemsSource = e.Result;<br />

To fill my combobox, it works fine and will file the combobox with values but i want the selectedvalue which is my userid for selected user from dropdown. How could i get the value.

Re: Selected Value in Combobox

Abhinav S20-Jul-10 19:50

Re: Selected Value in Combobox

20-Jul-10 19:50

Have a look at this post[^].

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.

My latest tip/trick - Silverlight *.XCP files

Arun Jacob20-Jul-10 20:50

Arun Jacob

20-Jul-10 20:50

You can directly bind from XAML like this,

SelectedValue="{Binding UserID}"

Arun Jacob
My Technical Blog : Code.NET

Re: Selected Value in Combobox

Kunal Chowdhury «IN»20-Jul-10 23:59

Kunal Chowdhury «IN»

20-Jul-10 23:59

Do the following:

var selectedUser = (from user in usersList
                   where user.UserId.Equals(selectedUserId)
                   select user).FirstOrDefault();

drpUserList.SelectedItem = selectedUser;

Don't forget to Click on [Vote] and [Good Answer] on the posts that helped you.

WPF, move window from a usercontrol mouse down event

fadedmaximus20-Jul-10 7:59

fadedmaximus

20-Jul-10 7:59

I have a custom user control loaded in the main window of the application. Inside of the custom user control I have a list box.

If the mouse left click is held down, I want the user to be able to drag the main window to a different location on the screen. Is it possible to handle this event inside of the listbox? If so, how can I go about doing it?

Re: WPF, move window from a usercontrol mouse down event

Jammer21-Jul-10 22:43

Jammer

21-Jul-10 22:43

Try this for a starting point ...

private void Window_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
    this.DragMove();
}

Jammer
My Blog | Articles | DMon | SampleSort

Re: WPF, move window from a usercontrol mouse down event

zendar225-Jul-10 4:08

zendar2

25-Jul-10 4:08

There is a problem with MouseEvents in ListBox - if you click on ListBoxItem, event will be handled and your application will not get event. Possible solutions are useing preview event or using AddHandler for handled events. See this article for sample code: How to Attach to MouseDown Event on ListBox[^]

how to use SQL with Silverlight

Amit Spadez19-Jul-10 20:42

Amit Spadez

19-Jul-10 20:42

hello,
I'm new in Silverlight Development. I want to know how to include "System.Data.SQLClient" in Silverlight application.
In other words, I want to use SQlConnection in Silverlight application
.
Please help

Re: how to use SQL with Silverlight

Abhinav S19-Jul-10 22:20

Re: how to use SQL with Silverlight

19-Jul-10 22:20

vinci007 wrote:
System.Data.SQLClient

This is not part of the Silverlight runtime.
You can user either Web services or the Entity framework to access data.

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.

My latest tip/trick - Silverlight *.XCP files

#realJSOP20-Jul-10 0:03

Re: how to use SQL with Silverlight

20-Jul-10 0:03

It's simply not possible. Silverlight apps can't connect directly to a database. You have to use a web service (or RIA services).

souidi abderrahman24-Aug-10 3:00

souidi abderrahman

24-Aug-10 3:00

you can use the ADO.net DataModel to mappe your Database or the LinqToSQl(dbml)
then you create a WCF for (ADO.Net DataModel) and a web serice for LinqToSql.

SL Toolkit v4 - Install issues

#realJSOP19-Jul-10 3:45

19-Jul-10 3:45

I already had v3 (Nov 2009) installed, and when I added a referenece to my app, everything was fine (the namespaces showed up). So then I installed v4 (Apr 2010), and I didn't see any namespaces for v4 when I tried to change the references.

To try to fix it, I uninstalled both V3 and V4 and then reinstalled v4, but I still don't get the v4 namespaces (or any namespaces for that matter since I uniinstalled v3).

What do I have to do to fix this? Anyone?

Abhinav S19-Jul-10 6:54

19-Jul-10 6:54

I believe the Silverlight toolkit v4 supports only SL4.
Are you using SL4?

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.

My latest tip/trick - Silverlight *.XCP files

#realJSOP20-Jul-10 0:05

20-Jul-10 0:05

Yeah, I saw that, but that Delay guy (that's his last name) presented a demo using that version that works on our SL3 systems. I gave up and went back to the prior version (Nov 2009).

I honestly don't understand why they dropped support for SL3 - more often than not, I really hate Microsoft.

Abhinav S20-Jul-10 2:28

20-Jul-10 2:28

John Simmons / outlaw programmer wrote:
presented a demo using that version that works on our SL3 systems

I'd be very interested to know how he did that.

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.

My latest tip/trick - Silverlight *.XCP files

#realJSOP20-Jul-10 2:36

20-Jul-10 2:36

I ran out of time to be really interested. I had to revert back to v3...

At home, I have SL4 so it's not an issue.

How to update combo box selection before prompt

Rob Graham19-Jul-10 10:23

Rob Graham

19-Jul-10 10:23

Ran into something similar - edit your project file and look for a line like:

<Import Condition="$(EnableSilverlightToolkitExtensions)=='true'" Project="$(Registry:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SilverlightToolkit\Tools\v3.0)Microsoft.Silverlight.Toolkit.Build.targets" />

if it's there replace with two lines like:

<Import Condition="$(SilverlightVersion)=='v3.0'" Project="$(Registry:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SilverlightToolkit\Tools\v3.0)Microsoft.Silverlight.Toolkit.Build.targets" />
<Import Condition="$(SilverlightVersion)=='v4.0'" Project="$(Registry:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SilverlightToolkit\Tools\v4.0)Microsoft.Silverlight.Toolkit.Build.targets" />

D.Dubya19-Jul-10 3:27

D.Dubya

19-Jul-10 3:27

Hi all,

I have a combo box in my WPF application that displays a confirmation dialog (MessageBox.Show()) when certain items are clicked.

Ie. I have the following options
- Pending (default selection)
- Completed
- For Review

When the "For Review" option is selected, I display the confirmation dialog.

My problem is that the combo box isn't updated prior to the dialog being displayed. So, even though "For Review" was selected and the Selection_Changed event is firing, the combo box shows "Pending" while the dialog is being displayed.

I've tried some DoEvents loops and even tried changing the combo box selection programatically prior to showing the dialog, all to no avail.

Any ideas?

Can't hit my asmx from Silverlight..

Nick Jacobs18-Jul-10 17:35

Nick Jacobs

18-Jul-10 17:35

Maybe somebody can help me out here...

I have a really really simple Silverlight app calling a web service on a different domain. The silverlight is just a simple login screen, it takes a username and a password and returns true/false.

The values are passed off to my web service and I return the boolean. I have checked out the following:
1) The web service itself works fine. I fired up a different platform and I can hit the web service and get back what I'm expecting from all over the place.
2) The ClientAccessPolicy.xml file is also wide open. I went so far as to play around with it a bit and I know I'm hitting the right one and it's working ok. (I did this by changing the URI to something else and I got shut out as expected, etc.

On my DevBox, it works fine. I can fire up the web site on my machine, and call the web service as expected. Shucks, I can even call up the web site itself on the web server and it works as expected.

It's only when I try to hit the Silverlight web site from other places where I run into problems.

Any chances somebody out there run across this and might know what I'm doing wrong?

Thanks,
Nick

Here's some of the error messages I'm seeing:

Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; OfficeLiveConnector.1.4; OfficeLivePatch.1.3; .NET4.0C; .NET4.0E; InfoPath.3)
Timestamp: Mon, 19 Jul 2010 03:31:43 UTC

Message: Unhandled Error in Silverlight Application An exception occurred during the operation, making the result invalid. Check InnerException for exception details. at System.ComponentModel.AsyncCompletedEventArgs.RaiseExceptionIfNecessary()
at xyx.ServiceProxy.GetAllAdvisorStatesCompletedEventArgs.get_Result()
at xyx.App.oProxy_GetAllAdvisorStatesCompleted(Object sender, GetAllAdvisorStatesCompletedEventArgs e)
at xyx.ServiceProxy.svcXYXSoapClient.OnGetAllAdvisorStatesCompleted(Object state)
Line: 1
Char: 1
Code: 0
URI: http://portal.myportal.com/xyx/

Message: Unhandled Error in Silverlight Application An exception occurred during the operation, making the result invalid. Check InnerException for exception details. at System.ComponentModel.AsyncCompletedEventArgs.RaiseExceptionIfNecessary()
at xyx.ServiceProxy.LoginCompletedEventArgs.get_Result()
at xyx.MainPage.oProxy_LoginCompleted(Object sender, LoginCompletedEventArgs e)
at xyx.ServiceProxy.svcXYXSoapClient.OnLoginCompleted(Object state)
Line: 1
Char: 1
Code: 0
URI: http://portal.myportal.com/xyx/

This are my own opinions. You know the rest.....

Re: Can't hit my asmx from Silverlight..

Abhinav S18-Jul-10 18:11