Comments by SteveAdey (Top 71 by date)

Which control is it? Is it your own control, or a standard one? If it's a standard one, then you are best writing a Behavior for it and exposing some dependency properties on it. Then you can bind these to where you need them on your view model. The click will then update the property.

This should give you an idea of where to start with the Behavior:

http://tap-source.com/making-wpf-images-icommand-aware/

That's demonstrating a Behavior for a ComboBox

Ok, this is how I see it.. You have a dependency property on your control that is bound to your ViewModel. You have a Command on your ViewModel which is bound to your Menu Item. When you click the menu item, you want to use that value, do a calculation and then update your view model.

If this is correct, then you need to add another dependency property to your control, bind that to your ViewModel, but in the binding, set its Mode=OneWayToSource. Then when you update the dependency property in your control, it will push the value back to your ViewModel property that you have bound to.

Maybe I'm missing something, but why can't you just modify the property on your ViewModel directly, rather than get the control to do it?

Which property? Is it one on your ViewModel?

Sure there's a clean way, use an ObservableCollection of the items in your View Model and then bind them to the ItemsSource of the TabControl.

Wouldn't this be slightly easier:

private bool IsLastDayOfMonth(DateTime dt)
{
return !(dt.AddDays(1).Month == dt.Month);
}

yes. But use whichever mechanism you are happy with.

See my solution on how to dynamically create the object and use it in your code.

That's only one you can answer, depending on your situation. If it were me, I would follow the .Net route, as this has a much wider range of companies to choose from that use it. It will also give you much more of a foot hold into 'real' programming.

I would suggest something has gone wrong in the design process. Looks like you're talking more about UI automation here.

I think if you read it again, he says this is a WinForms application, not an ASP.Net one as indicated in the tags.

It's not a question of whether a PHP programmer can go to Java or .Net. It's more to do with how you as a developer approach the situation. However, as a PHP programmer, you will not be taken seriously as a Java or .Net developer.

You must learn and prove yourself in those areas first.

Sorry, that wasn't a dig, more of a suggestion to help you in the future.

I've now updated the solution to show you how to bind to the selected value.

Each row should have its own ViewModel. i.e. you want an overall ViewModel with an ObservableCollection of your row ViewModels.

If you take a look at http://tap-source.com/?p=160, that should give you some idea of how to do this. If you're going to do WPF, then you really need to learn MVVM.

Hi Timur, I've now updated my solution with an example. My main reason for not recommending the Value Converter in this case, is that it's something the view model should be dealing with. The Converters are really to convert data from one type into a more visual type. This will do what you want, but what if some data came from another source as was not delimited by the '|' character? Or you had a list that was not delimited at all? This would make for some very messy XAML. I'm not saying that you shouldn't use it here, just that it's not good practice.

hmmm, not sure why you couldn't get this to work, given your solution, as they should equate to the same thing. Mine's just doing it in the ViewModel, while yours is doing it in a converter (IMHO not the way to go). But, if it works for you...

The MainViewModel should be showing an example of that.

I take it you mean that you would like to add new language strings without adding them to an xml file first???

Cool, any problems, give me a shout ;)

Then without the power of the ether, I think you may be stuffed, there has to be some way of the machines knowing about each other, otherwise what you are asking is impossible.

Start by re-reading the class assignment and then question whether this is what you really want to do.

Yes, that looks good.

Hang on, you've said:

"There I've added all the 3rd party assemblies as Content with Copy to output directory set to Always copy."

You shouldn't have to do that. And your references are definitely pointing to your third-party directory?

I wrote my own using MVVM and the DataGrid :p

BTW, if you're going to proceed with your current method (which I'm not saying you shouldn't), you should really rename it TryRename, that's the standard way of naming something like this.

Think you're going to have to be more specific here. Please post some code.

You will probably need exception handling in your application, otherwise you're just relying on the fact that you dlls are behaving nicely (not recommended). You asked for advice, this is mine :-)

You can add other properties to a specialised Exception that you create and then use the inner exception to house the one caught.

If you're happy, then that's fine. I found it too restrictive on the styling and gets in the way of MVVM. I'm talking the pivot table now. As for the rest of the controls, it's easy enough to style them yourself.

There's some great free charting libraries on Codeplex, but each has their strengths and weaknesses, as I'm sure DevExpress does.

oooh, apart from the DevExpress ;-)

Good answer Espen - my 5

If you're talking about a reference to it, then right click references in the solution explorer and then in the Add Reference dialog choose the .Net tab. Wait a few seconds and then click on the Component Name header to sort the assemblies. Hopefully you can find your Crystal Report assembly in there. Unfortunately, I don't know much about crystal reports.

Ok, I understand now, but you don't want the trigger on the buttons, you'll need it on the element that is going to contain the buttons. Again I would use opacity because then you can add a storyboard to make a nice fade in/out animation.

My point was, that it shouldn't be one windows service, I wasn't just rewording what you said. i.e. distributed counters.

You could be right, but it's not clear without the proper requirements of what he's trying to achieve. Without his input, which now seems to be missing, he may have solved this one by himself.

Yeah, but your's would need lan and internet access. I'd also assume (could be wrongly) that since there are multiple PCs without internet access, that they would be networked.

Try accessing the registry remotely from the other PCs.
I've given this a 4, as I think it's an interesting question.

The registry could work for multiple computers as you can access registries remotely.

Of course it would have to build it as a peer to peer system in case that 'one' computer was off, so they could all act as counter keepers. Makes it a little more complex though.
This would be by far the most robust solution.

I'd recommend your one Michael ;-) It doesn't need internet access.

Make sure you change the right version number, if memory serves it's not the obvious one (Upgrade one), but the main one.

That wasn't initially stipulated. Garbage in, garbage out ;-)

That's fine, but I don't understand why beginners are being given this kind of task. This is at best intermediate level.

I gave you the XAML for this yesterday. You basically asked the same question. The text in the rectangle I showed can be set through binding. In order to do that you set up a view model with the text as a property.

Unfortunately, I've spent enough time on this, without any comment from yourself, so as Christian says, we're not going to do all the work for you. Ask a specific question.

Hi Jacques, did you get a chance to try this out in VB?

Thanks for the 5 Sergey

I have to disagree. Linq is highly optimized in the background (by those clever boffs at MS). Also, your solution is missing a second string, which would add more processing to your solution.

How is my one line solution above a sledgehammer? compared to your multi-line solution?

You can, but be careful about performance, especially if you're calling it a lot.

Thanks Ninja, was trying to keep it succinct.

np, thanks for the 5

No problem, glad to help.

It sounds like you've been given a school assignment and you want someone to do it for you. Take a different course ;-)

Yes, that will help you do that.

Unfortunately, I can't see the problem. It seems to select fine.

CPallini is right. You would only pass a ref in for structs normally. You don't want to change the reference to the object, merely the object's contents. So, follow the example CPallini gave and you should be ok.

Why do you need your listbox in a scrollviewer?

The difference is that the Values are just an IList<tvalue> which has no mechanism to notify of its changes.

What are you trying to achieve with cbxNotUpdating that you cannot with cbxUpdating?

I have some code laying around somewhere that adds the columns in from code behind. I can dig it out at the weekend and post it up.

Why do you need the C# equivalent?

Try using XamlReader to get the xaml out and then create that in the new TabItem.