We Keep Coding

How to change the default look of a button or a form? (C#)

I want to change the appearance of the the form and the buttons, boxes etc which are laid on it. In java we can do that using Numbuzz look and feel or swing apperance. But i dont want to use the same traditional look of XP or any other OS which im gonna install my application, any one has an idea??

you could give Telerik a try and see if it's what you are looking for.
I'm using this library myself for application's design and i found it pretty cool. It has a lot of already made themes(like outlook controls...).
hope this helps

you could try to use WPF, WPF has been designed to make look and feel easily customizable.
or use vendor products like Infragistics WinForms (which allows you to specify Stylesheet kind of behaviour (search for infragisticsc stylesheet "ISL" ))

c# Tree/MindMap GUI

i am trying to research some gui technology for c# where i can display a tree view (opposed to the standard one provided.)
Essentially i want to have the gui draw a tree of data (as if you were going to draw a binary tree on a piece of paper or something) Then making each of the nodes clickable.
If this isnt available does anyone know of something where i could have a mindmap type GUI which shows links between elements and those are clickable?
I can guess people will say make one yourself, in which case i give up already ;) thats too advanced for me and as i am on a work placement i dont think i would be granted the time to make it as there are more pressing issues to get working first, like actually making the programme work!
Thank you

You can take a look at the controls in Kevin's WPF Bag-o-Tricks which has a WPF mind map style layout. Here is a nice example. If you want to use more professional components take a look at the product from Nevron Software, they have some great controls. There is also an opensource WPF graphing library - graphsharp (which I have no experience with, but I found a nice article by Sacha Barber). Since it's used in nDepend it must be pretty mature.
I hope you get some inspiration from those links :)

I also found XMind API for C#
https://xmindapi.codeplex.com/
It's free and looks easy to use.

Non-standard UI in C#

I'm still learning C#, and I know don't know about WinForms yet but I will very soon. However I want to know how I would create an application which shows a customized notifier, like Growl on a Mac. Here's a mock up:
http://img25.imageshack.us/img25/3793/41151387.jpg http://img25.imageshack.us/img25/3793/41151387.jpg
Could anyone point me in the right direction? And I know I should learn more about C# before trying this, but I've always liked to peek on complicated stuff.

Take a look at this third-party WPF NotifyIcon control, I think it does what you want out of the box, hopefully something like this will be part of WPF in the future. I have used this one before for the exact same reason, and it is really good: you can use standard tooltips or "toast" popups, or create your own which could be just like the one in the example you posted if you wanted.

WPF would be a great place to start. you can make UIs in pure XAML without even touching C#
Here is an example of an "notification" implementation using WPF
Here are some reference links:
http://en.wikipedia.org/wiki/Windows_Presentation_Foundation
http://windowsclient.net/wpf/

You should probably look into WPF (Windows Presentation Foundation) to design some of the nonstandard UI stuff.
However, I would recommend becoming familiar with UI design in general before diving into nonstandard stuff.

Since you are starting from scratch, I would consider learning WPF rather than Winforms.
Here are two examples are a pop-up notifier in WPF:
WPF Taskbar Notifier - A WPF Taskbar Notification Window
PopUp window on a specific time in WPF?

WPF is Definitely what you are looking for if you want something like the image you provided. My project uses notification popups similar to that in the screenshot. Its really simple to get the wanted results after looking at a few samples of others who have done it. If you would like some help, you can send a message my way.

C# + Custom graphics on controls?

I was just wondering if there are ways of creating my own custom winforms controls?
I've been plundering with Visual Studio 2008 now trying to do some c# apps. And the GUI end up looking terrible because of the standard winforms limitations.
And I noticed that I can add images to buttons for example, but ther's no hover effect. Or, the hover effect makes the whole button area gray. I don't want any of that, I just want to either create my own graphics for the controls or find some free (opensource perhaps) controls that already exist.
Any light on any of this, anyone? :)

You can write complete Winforms controls from scratch, doing all the painting and input processing yourself - you just create a class derived from 'Control' and get on with it.
There's a fair bit to making a first-class control which integrates nicely with the VS designer, so people tend to derive their custom control from an existing control which has most of the behaviour they want.
Here would be a good place to start: http://msdn.microsoft.com/en-us/library/6hws6h2t.aspx

I'm puzzled, you are doing WinForms development, yet in comments say you have done many months of WPF development, but WPF is not good enough because it is not cross platform.
How is WinForm more cross platform, and have you seen how ugly WinForms looks under mono on a Mac as it's draw via X11.
If you want style and cross platform, go for Flex or Silverlight, as your already know WPF I'd go the Silverlight route.
It's cross platform, and has all the beauty of WPF, but at the cost of reduced functionality out of the box.

First - may be more pragmatic to look at WPF, or hosting some WPF elements inside winforms (which is supported - like so). Other than that - you can do all your own painting if you want; but it is a lot of work.

Any reason why you don't use WPF? You have much more more UI control if you went down the route.
If you must go with WinForms then there are many commercial solutions like DevExpress. If you really want you own look and feel it'll be alot of work.

Yes. You can create your own controls. It is called a User Control. Just select Add->and User Control.
WPF is a good alternative if you want your windows form to look fancy.

How to move from WinForms to WPF

I used WPF very little before and some stuff seemed very different to achieve. Coming from a winforms background, what things will seem different and take you a while to figure out.
Off top of my head, I remember not being able to specify which nodes are selected in a treeview control the way it's done in winforms, if I am not wrong.

I remember the whole MVVM principle..
But its okay now.. we are bffs now! :)

Oh, where to begin? WPF and WinForms seem very different to me. The concept of defining layouts using markup is quite different, although similar to web development. The fact that you need to make an explicit choice of a layout container (for multiple elements) is novel. I remember trying to add a bunch of elements directly within a Window and getting very confused...
I think to take advantage of all that WPF has to offer, you need to have a WPF mindset. For example, you don't have to use styles, templates, and bindings, but those concepts are where the power of WPF lies.

As Daniel stated WPF is different and it needs a different Mindset. You have to forget all the UI side assumptions you made/learned while doing Winforms or other conventional UI side development
I have comeacross so many similar kind of questions in this site. Some interesting once are listed bellow. You can find many here.
What are the most common mistakes
made in WPF development?
How to begin WPF development?
When is Winforms the correct choice vs. WPF?

For your selected node in a treeview the ModelView ViewModel approach works well. People have worked out good design patterns now for this kind of thing making the process much more easy.