WPF Discussion Boards

can we use wpf controls in window's application .

7-Oct-09 7:22

VCsamir wrote:
i am not able to populate data in the combobox

How are you trying to populate the combobox?

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

Anuj Banka6-Oct-09 19:35

Anuj Banka

6-Oct-09 19:35

I m working on a windows project . i m new in WPF. so my question is can we use wpf controls and graphics in my existing windows project....tell me sum link for tutorial to if this is possible

Re: can we use wpf controls in window's application .

Pete O'Hanlon6-Oct-09 21:47

6-Oct-09 21:47

Do you mean that you want to host WPF controls inside a WinForms application? Why not write the whole application in WPF?

If you do mean hosting inside WinForms, you might want to follow the tutorial here[^].

"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.

Re: can we use wpf controls in window's application .

Anuj Banka6-Oct-09 21:54

Anuj Banka

6-Oct-09 21:54

I dont want to change the whole application. I want to apply WPF graphics on some of my pages.

IS its possible???????????

Re: can we use wpf controls in window's application .

Christian Graus6-Oct-09 22:11

Christian Graus

6-Oct-09 22:11

You can probably embed a WPF window here and there, but I think it's a dumb idea. You'd do better to start with WPF, embed your winforms controls as needed, and do the rest with WPF.

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

Re: can we use wpf controls in window's application .

Pete O'Hanlon6-Oct-09 22:55

6-Oct-09 22:55

anuj1784 wrote:
IS its possible???????????

Did you even look at the link I included in my post?

"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.

Re: can we use wpf controls in window's application .

Anuj Banka6-Oct-09 23:11

Anuj Banka

6-Oct-09 23:11

ohh sorry i thought u not understand wat i m tring to say

Custom scrolling in WPF control

grvdarji6-Oct-09 11:51

grvdarji

6-Oct-09 11:51

Hi,

I am developing a wpf application, with which I need to develop a user control,

but for now I am trying to achieve that functinality on one of my WPF forms first.

All I needed is picture(thumbnail size) list on the left side(vertically) of the form, and should able to manually scroll though the list
I am using Grid -> button(UP) in first row, button(DOWN) in third row ->
scroll viewer in middle row -> listbox(within the scroll viewer) -> individul images in the listbox

My main goal is to animate the imagelist vertically on clicking up or down button accordingly,
Now I almost got this simple functionality by setting scrollviewer's contentverticaloffset property,
but it's not smooth, it does not animate but just move up and down. Is there anyway I can animate this list smoothly?
I hope the problem makes sense, I am kind of new to WPF.

Thanks

Mark Salsbery7-Oct-09 7:41

7-Oct-09 7:41

grvdarji wrote:
listbox(within the scroll viewer)

A listbox by default already has a scrollviewer wrapping its items presenter.

Do you just need to scroll through the images or do you also
need to be able to select images?

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

grvdarji8-Oct-09 5:10

grvdarji

8-Oct-09 5:10

Thanks for the reply, Mark

Actually, the moment I clik on any image in listbox, the big image of the same, should show up in right hand side big image control.

So in order to answer your que.
No it is not just scrolling but I should be able to select and use that image-ID as well.(So it has to be a button at the top and bottom of listbox for manual scrolling since I don't want default scrolling, also I should not click(pick) and move image for scrolling.)

Just FYI: the thumbnail and big image are diff. image and coming from MS access 2007 DB.

Sorry for less info. in first time.

Mark Salsbery9-Oct-09 6:26

9-Oct-09 6:26

There's lots of ways to accomplish this.

If you want to use a ListBox, you could

1) remove your scrollviewer to use the one in the listbox
2) re-template the listbox as show in the sample code here:
    ItemsControl.ItemsPanel Property[^]
    setting the scrollviewers scrollbarvisibility properties to Hidden
3) At runtime, find the listbox's scrollviewer so you can manipulate it
    programmatically, as shown here: Access ScrollViewer from within a style[^]

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

Re: Using Aero theme in WPF

grvdarji9-Oct-09 10:45

grvdarji

9-Oct-09 10:45

Thanks for letting me understand the tree structure of the controls in WPF.

the posts you have directed to, are surely helpful.

I tried the same tree structure, and code.
(Correct me if I am wrong but, the code I have seen also had scrollviewer inside the border control, I also tried removing scrollviewer(to use listbox's default) as you said earlier but it stopped scrolling, then I put it back as the code sujjested and as per my previous working Markups)

Now, the main thing is that, after trying it, All I could get is step by step scrolling which I was getting before too.

I intend to get smooth scrolling, just like you hold scroll bar and move little up/down, but on click of my up/Down buttons.

thanks for the reply, it cleared my other doubts though.

Using Aero theme in WPF

Etienne_1236-Oct-09 10:59

Etienne_123

6-Oct-09 10:59

Hi
I recently did some digging on the internet and I found a way to use the Vista Aero theme in Windows XP. One can simply add the following line of code to the App.xaml file:

<ResourceDictionary Source="/PresentationFramework.Aero, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, ProcessorArchitecture=MSIL;component/themes/aero.normalcolor.xaml"/>

Now my question is, how can I specify this line of code when I already have other styles etc. specified in the App.xaml file? It gives me an error saying "Cannot add element to property 'Resources', because the property can have only one child element if it uses an explicit collection tag". It works when I remove everything else from App.xaml though.

Pete O'Hanlon6-Oct-09 11:14

6-Oct-09 11:14

You need to use a merged dictionary. Here's one from one I'm working on right now:

<Application
  x:Class="Goldlight.SampleApplication.App"
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  StartupUri="MainWindow.xaml">
  <Application.Resources>
    <ResourceDictionary>
      <ResourceDictionary.MergedDictionaries>
        <ResourceDictionary Source="Themes/BureauBlue/Theme.xaml"/>
        <ResourceDictionary Source="Goldlight.Resources.xaml"/>
      </ResourceDictionary.MergedDictionaries>
    </ResourceDictionary>
  </Application.Resources>
</Application>

"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.

Re: Using Aero theme in WPF

Ian Shlasko6-Oct-09 11:16

Ian Shlasko

6-Oct-09 11:16

<Application.Resources>
    <ResourceDictionary>
        <ResourceDictionary.MergedDictionaries>
            <ResourceDictionary Source="...aero etc etc..."/>
            <ResourceDictionary Source="...your dictionary..."/>
            <ResourceDictionary Source="...and many more..."/>
        </ResourceDictionary.MergedDictionaries>
    </ResourceDictionary>
</Application.Resources>

EDIT: Ah well, Pete beat me to it.

Proud to have finally moved to the A-Ark. Which one are you in?
Developer, Author (Guardians of Xen)

Re: Using Aero theme in WPF

Pete O'Hanlon6-Oct-09 11:21

6-Oct-09 11:21

Good job though. Thumbs Up | :thumbsup:

"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.

how to use List as a parameter in a call to a web service?

CBenac6-Oct-09 10:57

Re: how to use List as a parameter in a call to a web service?

6-Oct-09 10:57

I've create some web services that return, for example, a List<myclass> to the client and it is been working fine.

But now I'm trying to pass a List<myclass> as parameter from the client to a function in a web service but it does not compile. The compiler only accepts it if the List is of type object as in List<object>

Is it possible to acomplish what I'm trying to do or it only works if is List<object>?

Is there any other way to send the list to the server (Maybe FTP or something else)?

Any link to a good explanation on how to work with List<object> ?
Thanks

CBenac6-Oct-09 13:17

Re: how to use List as a parameter in a call to a web service?

6-Oct-09 13:17

The error actually happens in the app side and not in the web. private List<person>

myList = new List<person>(); // Same as declared in the web side
// Populate myList with some items .......

private void btn_Click(object sender, RoutedEventArgs e)
{
ServiceReference1.Service1Client proxy = new SilverlightApplication2.ServiceReference1.Service1Client();
proxy.SetPersonsCompleted += new EventHandler<system.componentmodel.asynccompletedeventargs>(proxy_SetPersonsCompleted);
proxy.SetPersonsAsync(myList);} // This line always underlined in blue by the compiler

void proxy_SetPersonsCompleted(object sender, System.ComponentModel.AsyncCompletedEventArgs e)
{
throw new NotImplementedException();
}

public class Person
{ public string name;
public int age;
}
Here is the error:
Error 1 The best overloaded method match for 'SilverlightApplication2.ServiceReference1.Service1Client.SetPersonsAsync(System.Collections.ObjectModel.ObservableCollection<silverlightapplication2.servicereference1.person>)' has some invalid arguments E:\SilverlightApplication2\Views\Home.xaml.cs 35 13 SilverlightApplication2

Error 2 Argument '1': cannot convert from 'System.Collections.Generic.List<silverlightapplication2.person>' to 'System.Collections.Generic.List<silverlightapplication2.servicereference1.person>' E:\SilverlightApplication2\Views\Home.xaml.cs 35 35 SilverlightApplication2

VCsamir6-Oct-09 20:16

VCsamir

6-Oct-09 20:16

hi..
There is one solution to it.. in your webservice create a List<Objects> populate it and pass it back to your silverlight solution,
now while reading the data from the object list to should have the class which will hold this data, use IEnumerater to go thru your list
and get the data

IEnumerator enumerator = e.Result.(Yourlist).GetEnumerator();
for (int i = 0; i < e.Result.(Yourlist).Count; i++)
Person = new person();
person.name= (yourList).toString();
person.Age= (int)(yourList);

Hope this helps u... :=) Big Grin | :-D

Re: how to use List as a parameter in a call to a web service?

CBenac7-Oct-09 3:44

Re: how to use List as a parameter in a call to a web service?

7-Oct-09 3:44

I want to send the list to the web service not the other way around. For this there is an easier solution: Just send the list as a return value of the function call to the web service.

In your example what is enumerator used for?

Mark Salsbery7-Oct-09 7:31

Re: how to use List as a parameter in a call to a web service?

7-Oct-09 7:31

CBenac wrote:
Error 1 The best overloaded method match for 'SilverlightApplication2.ServiceReference1.Service1Client.SetPersonsAsync(System.Collections.ObjectModel.ObservableCollection)' has some invalid arguments E:\SilverlightApplication2\Views\Home.xaml.cs 35 13 SilverlightApplication2

Shouldn't you be using an ObservableCollection<> instead of a List<> on the
client side, since that's what the generated code is expecting?

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

CBenac7-Oct-09 14:10

Re: how to use List as a parameter in a call to a web service?

7-Oct-09 14:10

Yes, you are right this is true indeed. But, it is not all, there is more to be done. I found an example that may work. I'll try it and post the result here.

Thanks

Mark Salsbery7-Oct-09 15:22

Re: how to use List as a parameter in a call to a web service?

7-Oct-09 15:22

CBenac wrote:
But, it is not all, there is more to be done

I guess I missed the problem then.

You stated "The compiler only accepts it if the List is of type object"...

When I define a service like this:

namespace TestWcfServiceLibrary
{
    [ServiceContract(Namespace = "")]
    public interface ISilverlightService
    {
        [OperationContract]
        void SetPersons(List<Person> personlist);
    }


    public class SilverlightService : ISilverlightService
    {
        public void SetPersons(List<Person> personlist)
        {
        }
    }


    public class Person
    {
        public string name;
        public int age;
    }
}

...I get this generated for the client:

public System.IAsyncResult BeginSetPersons(System.Collections.ObjectModel.ObservableCollection<SilverlightTester.SilverlightServiceReference.Person> personlist, System.AsyncCallback callback, object asyncState) {
    object[] _args = new object[1];
    _args[0] = personlist;
    System.IAsyncResult _result = base.BeginInvoke("SetPersons", _args, callback, asyncState);
    return _result;
}

public void EndSetPersons(System.IAsyncResult result) {
    object[] _args = new object[0];
    base.EndInvoke("SetPersons", _args, result);
}

There shouldn't be any compiler errors using that client side code.

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

CBenac8-Oct-09 6:02

Re: how to use List as a parameter in a call to a web service?

8-Oct-09 6:02

Mark,

I think the problem may be that the parameter is not been initialized correct in the client side. Would it be possible to show an example on how to call it from the client side?

Here is how it's been called:

            //ObservableCollection<People> people = new ObservableCollection<People>();
            List<People> people = new List<People>();

            private void btnTestList_Click(object sender, RoutedEventArgs e)
            {
                  ServiceReference1.Service1Client proxy2 = new AppListParam.ServiceReference1.Service1Client();
                  proxy2.SetListCompleted += new EventHandler<AppListParam.ServiceReference1.SetListCompletedEventArgs>(proxy2_SetListCompleted);
                  proxy2.SetListAsync(people);
            }

            void proxy2_SetListCompleted(object sender, AppListParam.ServiceReference1.SetListCompletedEventArgs e)
            {
                  MessageBox.Show(e.Result);
            }
      }

      public class People
      {
            public string Name;
            public int Age;
      }

Now, in another issue, why the code in my SL3 is generated different from the one in your example? There is no interface as you can see.

   [ServiceContract(Namespace = "")]
      [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
      public class Service1
      {

            [OperationContract]
            public string SetList(List<People> people)
            {
                  // Add your operation implementation here
                  return "OK";
            }

            // Add more operations here and mark them with [OperationContract]
      }

      public class People
      {
            public string Name;
            public int Age;
      }

Mark Salsbery8-Oct-09 10:14