Re: How to handle Different Modules in MVP ?? - WPF Discussion Boards

thrakazog21-Aug-09 8:33

21-Aug-09 8:33

While setting up a service reference for my silverlight app I keep getting the warning:

Web services at 'webserver' might not be accessible due to cross-domain restrictions: 
For more details please contact the web server administrator or press F1 after selecting this warning

I've setup both a clientaccesspolicy.xml and crossdomain.xml in the web sites root directory. As far as I can tell they are configured correctly. But for some reason my Silverlight app seems to be either not seeing them or ignoring them.

If I browse to the file off my web root they are visible http://[URL]/crossdomain.xml etc.

Are there any secret ninja setting for getting this to work correctly? Web site permissions or script access settings?

clientaccesspolicy.xml

<?xml version="1.0" encoding="utf-8"?> 
<access-policy>
  <cross-domain-access>
    <policy>
      <allow-from http-request-headers="*">
                <domain uri="http://*" />
                <domain uri="https://*" />
      </allow-from>
      <grant-to>
        <resource path="/" include-subpaths="true"/>
      </grant-to>
    </policy>
  </cross-domain-access>
</access-policy>

crossdomain.xml

<?xml version="1.0"?>
<!DOCTYPE cross-domain-policy SYSTEM "http://www.macromedia.com/xml/dtds/cross-domain-policy.dtd">
<cross-domain-policy>
  <allow-access-from domain="*" />
</cross-domain-policy>

Resolved.

thrakazog21-Aug-09 9:52

thrakazog

21-Aug-09 9:52

Apparently visual studio was the name of my pain. When I setup my Service Reference, Visual Studio changed that URL it was actually supposed to be pointing to in my ServiceReferences.ClientConfig file.

So instead of pointing to <endpoint address="http://[IP Address]/SilverlightExample/CommunicationService.svc" that it was supposed to.

Visual Studio tried to point to: <endpoint address="http://[Machine Name].local/SilverlightExample/CommunicationService.svc"

Why on Earth it decided to re-write the URL I gave it for the service I have no idea. Mad | :mad:

Sheet music

Tony Pottier21-Aug-09 5:58

Tony Pottier

21-Aug-09 5:58

Hello,

I'm an experienced programmer and I need to write a program capable of displaying a music sheet on screen.

My problem resides on the technology used for display. I first thought of OpenGL as I have experience with it and the TAOFramework that makes the use of OpenGL possible on .NET.

Then, well I have extensive knowledge of windows forms and all but I'm not really up to date on the latest versions of the framework so I think it could be done with WPF Microsoft marketted as wonderful.

So; my question for those still reading: could I write a fast, customm controller capable of displaying music sheet using WPF and if so could someone point me to some good starter page?

Thank you!

Re: Sheet music

#realJSOP21-Aug-09 7:12

#realJSOP

21-Aug-09 7:12

If it needs to be fast, I wouldn't use .Net at all...

"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
-----
"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

Re: Sheet music

Tony Pottier21-Aug-09 10:59

Tony Pottier

21-Aug-09 10:59

by "fast" i mean that I don't want it to lag when a user uses the scrollbar because it has to redraw. Anyway .NET will give me a much shorter development cycle.

Re: Sheet music

Richard MacCutchan31-Aug-09 5:19

Richard MacCutchan

31-Aug-09 5:19

There are lots of superb examples of just about every aspect of WPF here on the Code Project. Search, Read, Wonder and Enjoy.

How to handle Different Modules in MVP ??

Krishna Aditya20-Aug-09 22:50

Krishna Aditya

20-Aug-09 22:50

I am designing an UI Application with WPF (XAML and C#). This application interacts with Database(sqlserver 2008) too. This app is a tool for the project.

I have to implement this with CAB architecture and Model-View-Presenter(MVP).

If I have functionalites like 1. Uploading data to database 2. Downloading data from database. then,

My questions are : 1. What will Model, View and Presenter roles in these applications.

How the interfaces between these modules happen?

Is it I have to Create IModel (interface) b/w presenter and Model, IView (interface) b/w presenter and view?

So, my codebehind will have only events calls (like btn_click) ??

Which module handles Database access?

I know I asked lot of questions, but I have made the UI ready for the rest of the work flow .

I am sorry if many questions are put in one place. I will be so glad, if I can get answers for all the things.

Kindly help me.

Thank you,

Ramm

Re: How to handle Different Modules in MVP ??

Richard MacCutchan31-Aug-09 5:32

Richard MacCutchan

31-Aug-09 5:32

I would suggest some background reading on the MVP/MVVM patterns as there is something of a learning curve to get this right. You may like to start with Model View Presenter, and perhaps The Model-View-ViewModel.

How to stretch the image of (1* 66 ) pixel

Krishna Aditya20-Aug-09 5:15

Krishna Aditya

20-Aug-09 5:15

Hi,

In a WPF Application using XAML,

I have 2 images, which needs to be oriental of horizantal. One is of width 784 * 66 and other is 1 * 66.

while, design time, since my window is auto it shows properly, but during runtime, the window is of 1280 width... so, the image 1 * 66 should stretch and cover the rest (1280 - (784 + 1))

|____________________________|_|

should become

|____________________________|_______________________|

which means , my firstimage should have the same width (784) and the second image should stretch to cover the rest even though its only one pixel.

<Grid HorizontalAlignment="Left" Height="66" Name="grdTopImages">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="Auto" MinWidth="1" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="66" />
</Grid.RowDefinitions>
<Image Name="imgClientPhoto" Grid.Column="0" Grid.Row="0" Source="/Honeywell.eHTMP;component/Resources/_left.gif"></Image>
<Image Name="imgExtraImg" Grid.Column="1" Grid.Row="0" Stretch="Fill" Source="/Honeywell.eHTMP;component/Resources/_right.gif"></Image>
</Grid>

Please help me

Thanks
Ramm

Re: How to stretch the image of (1* 66 ) pixel

Krishna Aditya20-Aug-09 5:53

Krishna Aditya

20-Aug-09 5:53

Hi Guys,

I could solve it,

<ColumnDefinition Width="*" />
<ColumnDefinition Width="Auto" MinWidth="1" />

should be the other way width property

<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="*" MinWidth="1" />

Thanks a lot

Ramm

Navigation framework in tabs

tcook81520-Aug-09 2:50

tcook815

20-Aug-09 2:50

Hello,

I have a Silverlight 3 application where I use a tab control and I want to implement the navigational framework into it. The tabs on my page are created dynamically by the user, saying this

TabItem ti = new TabItem();
Frame frame = new Frame();
ti.Content = frame;
MyTabs.Items.Add(ti);

When the user clicks a link, I want content to load into whichever tab is currently selected, so I say this

HyperlinkButton btn = sender as HyperlinkButton;
string url = btn.Tag.ToString();
Frame frame = MyTabs.SelectedContent as Frame;
frame.Navigate(new Uri(url, UriKind.Relative));

The current tab loads the page into its frame correctly. However, as I click through the other tabs, they also have loaded the page into their frames, so all open tabs have the exact same content. So for example, the user has 5 tabs open. They click a link, and the currently selected tab loads a Page into its Frame. If they go to one of the four other tabs, they see that those tabs also loaded the same Page. How can I make sure that only the selected tab gets its new Page and not the other tabs? Thanks to anyone who can help.

Re: Navigation framework in tabs

Michael Sync29-Aug-09 18:56

Michael Sync

29-Aug-09 18:56

Have you tried using Prism V2 (CompositeWPF)? There is a TabRegaion Adapter that you can use.

Thanks and Regards,
Michael Sync ( Blog: http://michaelsync.net)

Microsoft MVP (Silverlight), WPF/Silverlight Insiders

How to create a collapsible panel in WPF

Krishna Aditya19-Aug-09 23:45

Krishna Aditya

19-Aug-09 23:45

Hi,

I am creating a Windows application (WPF) and C#. In my view, I have to add few layouts like browsing a folder, displaying the files in the folder in a list view...etc

My requirement is :
The panels mentioned above should be collapsible panels, I guess, we dont have option of collapsible panel in wpf.

I have to create a custom control for this? If so, Please suggest me how to do this?

Thank You,
Ramm

Re: How to create a collapsible panel in WPF

Pete O'Hanlon20-Aug-09 0:08

Pete O'Hanlon

20-Aug-09 0:08

You could always use an Expander.

<Expander Header="Folders" IsExpanded="false">
 ..
</Expander>

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

Re: How to create a collapsible panel in WPF

abetterword29-Dec-10 9:20

abetterword

29-Dec-10 9:20

Is there a way to have the expander bump other elements out of the way? for instance if your collapsed expander is next to a list view, can you move the listview over when you expand? probably not possible but thought id ask

UDP & WCF

Mohammad Dayyan19-Aug-09 22:00

Mohammad Dayyan

19-Aug-09 22:00

Hi everybody.
Could we use UDP protocol in WCF ?

Thanks.

Re: UDP & WCF

Pete O'Hanlon19-Aug-09 22:51

Pete O'Hanlon

19-Aug-09 22:51

If only there existed some mechanism for searching for information on the internet based on keywords. Why, this invention could make somebody very rich indeed. Clickety[^]

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

Problem with Silverlight application using WCF Service to get the data from database without LINQ

ravi.vellanky19-Aug-09 21:15

ravi.vellanky

19-Aug-09 21:15

Hi

I'm using a wcf service to get the data from the database and bind it silverlight control. And below is the code sample that i've written.

Problem here is WCF service that i've created is on basichttpbinding. Silverlight supports only this binding I think. So I changed the end point in my WCF service from default (wsHTTPbining ) to basic. when i add the service reference to the silverlight application the following is the silverlight clientconfig I'm getting with the error that i got when i build the application.

<configuration>
<system.serviceModel>
<bindings>
<basicHttpBinding>
<binding name="BasicHttpBinding_ITestWCF" maxBufferSize="2147483647"
maxReceivedMessageSize="2147483647">
<security mode="None" />
</binding>
</basicHttpBinding>
</bindings>
<client>
<endpoint address="http://localhost:8731/TestWCFLib/basic" binding="basicHttpBinding"
bindingConfiguration="BasicHttpBinding_ITestWCF" contract="testService.ITestWCF"
name="BasicHttpBinding_ITestWCF" />
</client>
</system.serviceModel>
</configuration>

Unhandled Error in Silverlight 2 Application An exception occurred during the operation, making the result invalid. Check InnerException for exception details. at System.ComponentModel.AsyncCompletedEventArgs.RaiseExceptionIfNecessary() at MNetMetricSystem.testService.GetBugCountCompletedEventArgs.get_Result() at MNetMetricSystem.OrganizationBaseLine.obj_GetBugCountCompleted(Object sender, GetBugCountCompletedEventArgs e) at MNetMetricSystem.testService.TestWCFClient.OnGetBugCountCompleted(Object state)

public partial class OrganizationBaseLine : UserControl
2 {
3 ServiceReference1.MNetMetricsServiceClient Metrics = new MNetMetricSystem.ServiceReference1.MNetMetricsServiceClient();

4 public OrganizationBaseLine()
5 {
6 InitializeComponent();
7 Loaded += new RoutedEventHandler(OrganizationBaseLine_Loaded);

8 }
9
10 void OrganizationBaseLine_Loaded(object sender, RoutedEventArgs e)
11 {

12
13 Metrics.GetAllDepartmentsCompleted += new EventHandler(Metrics_GetAllDepartmentsCompleted);
14 Metrics.GetAllDepartmentsAsync();

15
16 }
17
18 void Metrics_GetAllDepartmentsCompleted(object sender, MNetMetricSystem.ServiceReference1.GetAllDepartmentsCompletedEventArgs e)

19 {
20 cmdDepartMent.ItemsSource = e.Result;
21 }
22
23 }
24
25 This is the Service class from Interface

26
27 public class MNetMetricsService : IMNetMetricsService
28 {
29
30 DLMetrics objMetrics = new DLMetrics();

31
32 List mlist = new List();
33
34 List IMNetMetricsService.GetAllDepartments()
35 {

36
37 DataTable dt = objMetrics.DLGetAllDepartments();
38
39 mlist.Add(new MYList() { MyTable=dt});

40
41 return mlist;// List That i've return at the Silverlight application
42 }

43 }

I didn't use any LINQ to SQL to retrieve data from the database. Without LINQ is it possible? If possible what is the solution? Pls give some links on this......

Re: Problem with Silverlight application using WCF Service to get the data from database without LINQ

Mark Salsbery20-Aug-09 6:03

Mark Salsbery

20-Aug-09 6:03

I'm missing something here....where is the problem?

Is this a WCF problem or a database access problem?

You showed WCF configuration....is that from the client side or the server side?
What does the other end's configuration look like?

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

Re: Problem with Silverlight application using WCF Service to get the data from database without LINQ

ravi.vellanky20-Aug-09 18:18

ravi.vellanky

20-Aug-09 18:18

Thanks Mark for the reply.

Problem is while adding service reference to the silverlight application in ServiceReference.ClientConfig file it shows the end points properly. That means no problem with WCF Service. In the WCFTESTCLIENT also I tested, It works very well.

But when I bind the service method in the pageloading event to a silverlight combobox control, It is showing the following error.....

Unhandled Error in Silverlight 2 Application An exception occurred during the operation, making the result invalid. Check InnerException for exception details. at System.ComponentModel.AsyncCompletedEventArgs.RaiseExceptionIfNecessary() at MNetMetricSystem.Metrics.GetAllDepartmentsCompletedEventArgs.get_Result() at MNetMetricSystem.OrganizationBaseLine.Met_GetAllDepartmentsCompleted(Object sender, GetAllDepartmentsCompletedEventArgs e) at MNetMetricSystem.Metrics.MNetMetricsServiceClient.OnGetAllDepartmentsCompleted(Object state)

Re: Problem with Silverlight application using WCF Service to get the data from database without LINQ

Mark Salsbery21-Aug-09 6:55

Mark Salsbery

21-Aug-09 6:55

I can only guess with the given information.

Looks like you need to debug your server so you can get more meaningful
exception info. WHERE the exception is occurring would be helpful too.

The exception message you posted mentions checking the inner exception...
what's there?

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

Re: Problem with Silverlight application using WCF Service to get the data from database without LINQ

Edbert P31-Aug-09 16:33

Edbert P

31-Aug-09 16:33

Are you using DataTable? (From the looks of it your WCF returns DataTable)
Silverlight does not support DataSet and DataTable, therefore your WCF has to return the result as an ICollection, e.g. List, ArrayList.

Edbert
Sydney, Australia

Re: Problem with Silverlight application using WCF Service to get the data from database without LINQ

ravi.vellanky31-Aug-09 18:15

ravi.vellanky

31-Aug-09 18:15

Thanks for the reply Ebert,

I returned list only from the wcf service. Is there any alternative way to get data from the database without WCF service?

Ravi Vellanki,
AP,India.

WPFToolkit - Sort Arrows in DataGrid

#realJSOP19-Aug-09 4:42

#realJSOP

19-Aug-09 4:42

Is there something special I have to do to get the direction arrows to show up in the DataGrid that comes with the WPFToolkit? The columns sort okay, but I don't get any direction arrows...

Re: WPFToolkit - Sort Arrows in DataGrid

User 27100923-Aug-09 4:54

User 271009

23-Aug-09 4:54

John,

The arrows will always show after the column header is clicked.

To get them to show on form open, in your XAML set the SortDirection property.

<toolkit:DataGridTextColumn Binding="{Binding FirstName}" SortDirection="Descending" Header="First Name" />

Cheers, Karl

» CodeProject 2008 MVP, CodeProject 2009 MVP

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