[SOLVED] Winfroms Component Z-Index - WPF Discussion Boards

Re: Possible to get text under mouse of XBAP controls?

17-Jul-13 12:56

Isn't there a browser function/widget/thingy that acts as a magnifying glass, this may be the way to get the part of the screen under the mouse, grab that as an image, do a bit of contrast comparing to get the shapes, turning that into unicode may be a challenge, I expect Google has an api for their translate tool.

Just some thoughts, I have no idea whether all that can all be done and it may be simpler to internationalise the original app!

Never underestimate the power of human stupidity
RAH

Dominick Marciano18-Jul-13 3:35

Dominick Marciano

18-Jul-13 3:35

I wish they would just internationalize the application; I even offered to do it but they won't give me the source code (even though they know my long history of programming experience). The computer has IE10 on it and the only thing I see is a menu option that says "Zoom (100%)" but it is grayed out.

Need to Remove Extra column header in Datagrid

PriyaRam1114-Jul-13 21:39

PriyaRam11

14-Jul-13 21:39

Am using Datagrid,where am getting an extra column header at the end.i bind the values from server to Datagrid thru 'Tag' property.How to remove the extra column header in this case.

Re: Need to Remove Extra column header in Datagrid

Kenneth Haugland18-Jul-13 20:12

Kenneth Haugland

18-Jul-13 20:12

A DataGrid Column could be hidden, but I dont think you can remove it...

Re: Need to Remove Extra column header in Datagrid

Sebastian Meier18-Aug-13 0:04

Sebastian Meier

18-Aug-13 0:04

The DataGrid by default generates its columns automatically. If you set its 'AutoGenerateColumns'-Property to False you can prevent this and maybe the extra column disappears by doing so.
Additionally you can define all the columns manually like so:

<DataGrid>
   <DataGrid.Columns>
      <DataGridTextColumn Header="Test" />
      <DataGridTextColumn Header="Test2" />
   </DataGrid.Columns>
</DataGrid>

If you disable auto generation and define your own columns there should appear no additional columns in the DataGrid.

[SOLVED] Winfroms Component Z-Index

AlphaDeltaTheta14-Jul-13 18:34

AlphaDeltaTheta

14-Jul-13 18:34

Are WinForms components inside a WinformsHost element rendered with maximum possible z-index?
They always seem to overlap any WPF wlement, even with a higher Z-Index. Anyways to fix this? This is really causing much trouble when trying to embed a lengthy WinFormsHost component in a scrollable.

Beauty cannot be defined by abscissas and ordinates; neither are circles and ellipses created by their geometrical formulas.

~ Carl von Clausewitz ~

Source

modified 18-Jul-13 21:45pm.

Pete O'Hanlon17-Jul-13 11:44

17-Jul-13 11:44

It's called the Airspace issue. It's fixed in .NET 4.5.

I was brought up to respect my elders. I don't respect many people nowadays.

CodeStash - Online Snippet Management | My blog | MoXAML PowerToys | Mole 2010 - debugging made easier

AlphaDeltaTheta17-Jul-13 16:50

AlphaDeltaTheta

17-Jul-13 16:50

XP doesn't support .NET 4.5. Does it?

Beauty cannot be defined by abscissas and ordinates; neither are circles and ellipses created by their geometrical formulas.

~ Carl von Clausewitz ~

Source

Pete O'Hanlon17-Jul-13 20:22

17-Jul-13 20:22

No, it doesn't.

I was brought up to respect my elders. I don't respect many people nowadays.

CodeStash - Online Snippet Management | My blog | MoXAML PowerToys | Mole 2010 - debugging made easier

Richard Deeming18-Jul-13 1:16

Richard Deeming

18-Jul-13 1:16

Pete O'Hanlon wrote:
It's fixed in .NET 4.5.

Are you sure? From what I've seen, there was a fix in the beta, but they removed it from the final release.

.NET 4.5 Beta Readme[^]

1.3.10 Windows Presentation Foundation (WPF)

1.3.10.1 HwndHost feature has been removed from WPF in the .NET Framework 4.5 Beta
The .NET Framework 4.5 Developer Preview included a WPF HwndHost redirection feature. However, this feature had several known issues and has been removed from the .NET Framework 4.5 Beta. It will not be included in any future releases.

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

Pete O'Hanlon18-Jul-13 1:21

18-Jul-13 1:21

You're right. Pete Brown, at Microsoft, promised me this would be in and as it wasn't something that I was affected by, I didn't follow up to see if it was delivered. This makes me pretty angry.

I was brought up to respect my elders. I don't respect many people nowadays.

CodeStash - Online Snippet Management | My blog | MoXAML PowerToys | Mole 2010 - debugging made easier

Richard Deeming18-Jul-13 1:24

Richard Deeming

18-Jul-13 1:24

Pete O'Hanlon wrote:
Pete Brown, at Microsoft, promised me this would be in

There's your mistake - never trust anyone called "Pete"! Poke tongue | ;-P

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

Pete O'Hanlon18-Jul-13 12:24

How to handle button click event from DataTemplate

18-Jul-13 12:24

There's an excellent article here[^] on how to mitigate the airspace issue.

I was brought up to respect my elders. I don't respect many people nowadays.

CodeStash - Online Snippet Management | My blog | MoXAML PowerToys | Mole 2010 - debugging made easier

jainga1021314-Jul-13 15:35

jainga10213

14-Jul-13 15:35

I have several datatemplates defined in a resource dictionary (in Resources project)

My application is in a separate project that references the Resources project. Appropriate datatempalte is loaded depending upon the object that is set to the datacontext during run time. Some of these datatemplates have buttons. How do I handle the click event of these buttons. I tried eventsetter but got XAML errors abt not being able to set eventhandler.

Thanks

Re: How to handle button click event from DataTemplate

AlphaDeltaTheta14-Jul-13 17:52

AlphaDeltaTheta

14-Jul-13 17:52

Templates work only with triggers. These triggers are use to set various properties of the button.
See this for a more detailed understanding:Triggers in WPF[^]

ClickEvent is handled in code. It is completely independent from Triggers. You should be able to attach an event handler in the XAML declaration like this.

XML

<Button x:Name="button1" Click="button1_onClick" Template={StaticResource MyTemplate} />

In code:

private void button1_onClick(object sender, RoutedEventArgs e)
{
     //handle button click event here.
}

See MSDN for more details:
Button Class[^]
ButtonBase.Click Event[^]

Beauty cannot be defined by abscissas and ordinates; neither are circles and ellipses created by their geometrical formulas.

~ Carl von Clausewitz ~

Source

Re: How to handle button click event from DataTemplate

jainga1021317-Jul-13 10:46

jainga10213

17-Jul-13 10:46

Thanks Amitosh S.M. for your reply.

I ended up binding a command to the button in datatemplate. And then defining this command as a property in my class. Worked pretty well.

HTML

<Button Name="btnControl"  Canvas.ZIndex="10"  Canvas.Left="175" Canvas.Top="25" Content="ICOM"
MaxWidth="75" MaxHeight="75" Style="{StaticResource ICOMButtonStyle}" Command="{Binding LaunchControlModule}"/>

Public ReadOnly Property LaunchControlModule() As ICommand
    Get
        Return New ViewModelCommand(AddressOf HandlerLaundControlModule)
    End Get
End Property

Private Sub HandlerLaundControlModule()
    ShowControlModule = True
End Sub

    Public Class ViewModelCommand
        Implements ICommand

        Private _handler As Action


        Public Sub New(ByVal handler As Action)
            _handler = handler
        End Sub


#Region "ICommand Members"
         Public Function CanExecute(ByVal parameter As Object) As Boolean Implements System.Windows.Input.ICommand.CanExecute
            Return True
        End Function

        Public Event CanExecuteChanged(ByVal sender As Object, ByVal e As System.EventArgs) Implements System.Windows.Input.ICommand.CanExecuteChanged

        Public Sub Execute(ByVal parameter As Object) Implements System.Windows.Input.ICommand.Execute
            _handler()
        End Sub

#End Region

My Thoughts On My WPF App Design

Kevin Marois12-Jul-13 11:40

12-Jul-13 11:40

I'd like to get your thoughts on this design...

So I am writing some software for personal use. I'm an independent developer, and I wanted to put together an app to track the work I'm doing and handle invoicing and billing. Conceptually I understand what I want, but programmatically I am working on the design. This is more about me learning than producing an app.

So, I am building this WPF/MVVM app in components. Most pieces are user controls. I decided that I would use relay messages to communicate between the user control a& its host.

For example, the Client View is found in the Client Center.

Each Client is viewed in its own tab in the Client Center. The Client Center has a toolbar with New, Edit, Save, Cancel and Print buttons. Since the center doesn't really know about the Client views in the tabs, the Center will broadcast a message for each function. The Client Center has an instance of a TabManager class, which is a collection of TabItems. The TabItem's Tag property contains the PK of the entity in the tab's content. So, this is available in the View Model.

As an example, when the Save button on the Client Center toolbar is clicked, then it does:

ClientViewSaveMessage message = new ClientViewSaveMessage
{
    // Get the Client's PK from the active tab's Tag property
    Clientid = getActiveTabEntityPK()
};

Messenger.Instance.Send<ClientViewSaveMessage>(message);

Then in the client view I have

//CTOR
public ClientViewModel
{
    messenger.Instance.Register<ClientViewSaveMessage>(p => receiveSaveMessage(ClientViewSaveMessage)p)
}

and then the receiveSaveMessage

private void receiveSaveMessage(ClientViewSaveMessage message)
{
    // Only call Save if the message is for this Client
    if(this.Client.Id == message.ClientId)
    {
        saveChanges();  
    }
}

This technique has the advantage of decoupling all the components. So far it's working well. It's easy to develop, and so far, easy to maintain.

A drawback might be that I will need a lot of messages. I could make one message that has different properties...

Any way, I'd like to hear what you guys think.

Thanks

If it's not broken, fix it until it is

Mycroft Holmes12-Jul-13 13:06

12-Jul-13 13:06

2 things come to mind. You have low expectations of your client base (reasonable in an independant developer) as you are using a tabcontrol as your client collection UI. I would use a grid. In the late 90 after about 5 years of consulting I had well over 50 organisations I was keeping tabs on, once a client or even a quote always a potential.

One reason not to use a messaging paradigm is that it is a bitch to maintain, there is no direct link between the firer of the message and the consumer of that message. a bitch to support.

Never underestimate the power of human stupidity
RAH

Kevin Marois14-Jul-13 13:42

14-Jul-13 13:42

Mycroft Holmes wrote:
You have low expectations of your client base (reasonable in an independant
developer) as you are using a tabcontrol as your client collection UI

I never said that. I said when a client is opened, it's opened in a new tab in the client center. There is a list of clients on the side .

Mycroft Holmes wrote:
One reason not to use a messaging paradigm is that it is a bitch to maintain,
there is no direct link between the firer of the message and the consumer of
that message. a bitch to support.

That's what I said in my OP. Other than that, I cannot see any reason not to use this design,

If it's not broken, fix it until it is

Mycroft Holmes14-Jul-13 14:11

14-Jul-13 14:11

Kevin Marois wrote:
There is a list of clients on the side

Ah somewhat like the outlook bar, that makes sense.

Kevin Marois wrote:
Other than that,

Yeah but support is a major factor in the cost of an app and we will go a long way to make it easier for the next poor sod who has to support the app.

Never underestimate the power of human stupidity
RAH

Kevin Marois15-Jul-13 5:11

15-Jul-13 5:11

SO far it seems to be working well. Overall it's very little code, but the number of message classes is growing. I think that's where the confusion might come in. I could make one generic message class.

As far as knowing who sent a message, the call stack shows that. But I understand what you're saying.

If it's not broken, fix it until it is

Mycroft Holmes16-Jul-14 21:46

16-Jul-14 21:46

Kevin
Can you describe in one paragraph how you constructed your dynamic tab control. I have a similar requirement (max 5 tabs). If so please email me direct (your email is disabled on the messages).

Never underestimate the power of human stupidity
RAH

Kevin Marois17-Jul-14 6:49