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How to make custom form control in c#

I was trying to do something in visual studio the other day when I realized, if I could just make a form control to do it for me it would be allot easier, except I have no idea how to do that, I want the form control to have grids, each square having its own color property, if anyone knows how to make form controls, or even better knows how to make something like what I just described, I would be very happy :D

This MSDN article is a basic step by step outline of how you can write a customer control.
Unfortunatly MS has not figured out how to do avoid link rot -- so you may need to search creating custom winform controls to find this if you come in the future.
You are usually best servered by subclassing an existing control and customizing it.
You might also find some of the freely available winform control projects a gold-mine of useful info if you get serious about this.
However, it sounds likely what you should consider doing is creating a "User Control", this is usually simpler for a composite of few existing controls. This
article on the types of controls for winforms may be a useful overview for you.
Beyond that you really should use S/O if you are trying to resolve a specific problem you are having when you are coding. Google is a more appropriate tool for finding tutorials, etc.

1) Inside your project: Solution Explorer --> Right Click the .csproj --> Add UserControl
2) Drag and drop gridBox or any control you want into your custom control.
3) Check the ToolBox, your custom control should be located at the very first selection

Can I dynamically add a user control to a silverlight application without recompiling it?

I have a silverlight application with several menu buttons, each of which opens up a user control in a center "work space" area. It works fine. Now what I'd like to do is make some more user controls, compile them into a dll, and through say, a configuration file, have the silverlight app add a new menu button and make it make one of those new controls appear. The difficult part is, I'd like to be able to do this without recompiling the silverlight app. I'd like another developer to be able to make a user control that does some things, compile it into a dll, and drop it into the silverlight directory with some changes to a config file to get the main app to load it in. Is there a way I could do this?

Since noone else has replied yet:
What you want to do is reflect classes form a third-party dll at runtime. This is possibly too big a subject for SO, and all I can really recommend is looking up examples of it, and maybe the msdn section on it.
You'll also want to look up serialization and deserialization in C# and silverlight (this question might be a good start).
Sorry I can't be more help than that, but hopefully someone more experienced will weigh in with a useful article or some such.
Good luck :)

Developing wizard UI - WPF

All in WPF:
Developing a wizard application, user has to answer a number of simple questions before brought to the main app. The main app is then prefilled with the information obtained from the wizard.
I started with a Window which I then planned to add usercontrols to. The main window would have the user control in the first row, then Next and Previous buttons to control moving between the controls in the second row. This way I could easily control the logic to switch between screens like:
WizardControl1.IsVisible = false;
WizardControl2.IsVisible = true;
But for some reason, user controls do not have setter for IsVisible. Hurray.
So then I thought I would just use seperate windows for each section of the wizard. The problem with this approach is that now when stepping between, the window opens in random positions, and by steppign through the wizard with next, the next window pops up randomly which is really distracting and frustrating.
So how can I develop a wizard properly? I don't get why this is so hard...not exactly rocket science... replacing text and controls and storing input after pressing next/previous!
Thanks

Check this link:
http://www.codeproject.com/KB/WPF/InternationalizedWizard.aspx
This is the article about building wizard in WPF by Josh Smith, it's seems to be nice pattern.
I found it's helpful for me, hope you'll too.

There is also an open source Avalon Wizard control on codeplex.

I'd probably aproach this using data binding and template selectors. Have the wizard form bind to a "WizardData" class, which exposes a list of "WizardPage" base classes.
The WizardData class can expose properties defining the correct info on the forms, and display a control for the main page that uses a template selector to determine the proper control to display based on the actual type of the particular wizard page.
It sounds like more work than it is, really. It also gives you the benefit of good separation between code and UI (all "work" is done by the WizardData and WizardPage classes), and the ability to test logic independent of the UI.
It's also a very WPF/MVVM way of approaching the problem.

I recognize this does not directly address your question, but I thought I'd mention it as a possible alternative. I've used Actipro's Wizard control with pretty good results, and when I have needed support, they have been very responsive. I am not affiliated with them in any way; I just like not having to write the plumbing to manage a wizard.

The property is called "Visibility".
I find that I do better when I dynamically add and removing controls rather than hide them.

I was looking for a Wizard solution too. I have the need to stick with stock WPF components so I implemented the wizard using a standard form and a tab control.
I only hide the tabs at runtime so there available in the IDE. At runtime just use Back, Next, Finish... to navigate thru the tab items
works good

How can I create a button with an embedded close button

I am trying to create a panel which will have a set of "buttons" on it.
These buttons should have the following behaviour:
Appear similar to a tag (with
rounded edges)
Contain a red
cross to remove the filter/tag from
the panel, similar to the way internet
explorer tabs have an embedded cross to close the individual tab.
allow the user to click
on the tag and respond like a normal
button (as long as the click is not
in the red cross)
Number 1 is no problem, this is just appearance, however, regarding numbers 2 and 3, I am not sure if there is already code out there do to something similar...and I dont really want to reinvent the wheel if I can avoid it!
My question is: Does anyone know if there is something out there in infragistics which will do this simply, or will I need to write this myself by subclassing winform buttons?
Thanks in advance!

Is this new development or maintenance of an existing project?
If it is maintenance, you have a somewhat tougher time ahead. You'll implement a UserControl, probably segmented into two buttons. Use docking to get the behavior as correct as possible. The far right button would contain your cross image; the left (which would need to auto-expand as you resize the control) would contain your primary button behavior. Play with the visual styles until you get them right (EG, removing borders, etc).
If this is new development, and you haven't gotten too far into it, you might consider using Windows Presentation Framework (WPF) instead of WinForms. It will be easier to build the control and get it to look exactly how you want it. WPF includes an extremely powerful control compositing system which allows you to layer multiple controls on top of each other and have them work exactly as you'd expect, and it carries the added advantage of allowing full visual control out-of-the-box.
Either way, this is more work than dropping in an external component ... I've used Infragistics for years, and I can't think of anything they have which is comparable. The closest, but only if you're building an MDI application and these controls are for window navigation, is the Tabbed MDI window management tools -- and there, only the tabs (which replace window title bars) have this behavior.

I don't think that infragistics can do something like this. The UltraButton control can't.
Implementing a own control wouldn't be that hard.

your probably going to have to make a costume control for this type of work.

Non intrusive 'live' help system

I'm searching a C# component or code snipped that does something like that:
I want to inform new users about the most important program functions if he opens a new window for example.
It should be a box showing text (formated if possible) that is of course not modal and has some mechanism to 'go out of the way' if the user enters the textbox area. So that he can access what's underneath it. Alternativly the window could also stick to the border of the window, but there needs to be a way that this also works if the window is maximized.
So I want to present him with a short introduction of what he can do in every corner of my app most painlessly.
Thank you!

I use a "bar" at the top of every window to display some information about the current window/dialog.

Use tooltips. They can be programmatically controlled, and you can have them appear at will. You'll need to add the functionality to your app to keep track of what tooltips have been shown to the user already.
You can add a "balloon" style by setting the IsBalloon property to true.
You can also replace them with smaller descriptions for when the user wants to hover over the control and have them displayed again.

I'm already using tooltips heavily. However, they aren't very practical when displaying bigger amounts of data and they are bound to specific user actions.

Have you considered having a contextual menu for each form / page which contains links to Adobe Captivate style presentations for each available task? That way the user can investigate an example of how to achieve a task relating to what they are trying to achieve from within the application / site.
This approach would require a good deal of maintenance and management if your code changes regularly but coordinating it with a training department can provide rich help features in your application.
See http://www.adobe.com/products/captivate/ for more information.