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Winforms and contents to run on any resolution

I have a problem with getting my content in a WinForm application to properly resize to fit any screen resolution, How can I solve this?
I used
this.Location = new Point(0, 0);
this.Size = Screen.PrimaryScreen.WorkingArea.Size;
The size of the form was successfully changed according to the computer's resolution but the contents were not.

The controls inside of a WinForms form do not change based on the size of the form. Textboxes, radio buttons, etc are based on a specific pixel size and do not vary by resolution.
You have to develop your form to work with different resolutions. You will want to use lots of panels with the DockStyle set appropriately. You can hide panels that won't fit (though you might need to provide an alternate way to get to them).
If you need it to change based on resolution, you might want to look into WPF.

For winforms Dock and Anchor properties can help you on this. But they are not powerful as new WPF features (Eg: viewBox). Containers like SplitContainer and Panels can be resized properly with the Dock property. But there is no easy+nice ways to resize child controls like buttons, labels. Those child controls are also support for Dock/Anchor properties though.
Below are some useful articles for your reference.
Article 1
Article 2

Dock, Anchor and Fluid layouts in Windows Forms Applications

So, I've been asked to redesign an old application I wrote a few years ago.
Basically, nothing much needs to be changed, except that the Customer wants it to be more fluid, and that it must be fullscreen (no visible "window") I.e. no Titlebar, just a Borderless fullscreen Window.
What is the best way to make sure everything stays fluid, I mean how can we make sure everything appears where it should, 'cause you know, different resolutions, monitor sizes etc?
This is easy in web pages/css, but this is not something I've done before. Most of the Controls will be created programatically at runtime, based on what action was performed, etc. How would I accomplish such a layout? Basically I want to be able to lay it all out full screen, without knowing how large their monitor is, or what resolution they're using.

Your certainly correct in trying to design your form using a fluid layout that responds to the size of the available space and size of the form font. To do that you want to use the following controls and control properties.
1, TableLayoutPanel will split an area into a set of rows and columns and allow you to position your child controls within individual cells of that table layout. This responds to a change in the form width and height.
2, FlowLayoutPanel will position your child controls from left to right and automatically move to a new row when you run out of space. This is great for a fluid design as it will adjust the layout depending on the available space.
3, Control.Anchor property allows a child control to alter position and size based on the size of the form client area. So you make your control always be a fixed offset from the right or bottom edges.
4, Control.Dock property will position a child control against an edge and the opposite size will automatically be defined by the containing form.

You could put Your controls into tableLayout, and set the Dock property to fill.

How do I make multiple controls in a Windows Form automatically resize with the window?

I'm new to Windows Forms in Visual Studio, and I am wondering how to automaticly resize controls to the window size.
Say, I have 2 controls in a panel, a List Box and a Button. I want the button to dock to the bottom, and I want the List Box to fit the rest of the space. when the window resizes, the button should be at the bottom (as expected with docking), and the list box should stretch down to the button.
Is there a way to do this without any code?
Thanks.

Dock is pretty easy to use, but I recommend using the Anchor properties instead. Resize your form to a reasonable size in the Designer. Then, place your controls to look the way you want. Then, decide which controls should resize with the form and set the Anchor property as follows:
If you want the control to resize with the form in width, set the Right anchor.
If you want to resize height, set the Bottom anchor.
If you want the control to stay right when the form resizes, unset the Left anchor.
If you want the control to stay bottom when the form resizes, unset the Top anchor.
The problem I have with Docks is that they sometimes act funny when controls are not declared in a specific order, and to get the effect you want, sometimes you have to create extraneous panels just to hold controls.

It really gets messy when you want to maintain the aspect ratio of each control. One way, which is not really up to the mark if you want to get into fixing the details, is to use TableLayoutPanel and use Dock and Anchor wisely to achieve what you want.

Use the dock and fill options on the controls. Look under properties for each object, and containers if they are in any.

You can use SplitContainer
Google for examples. Here is one

Try setting your ListBox's Dock property to Fill.
You'll need to watch for one thing though: by default the ListBox will size itself to display whole list items. If you resize the control so that it displays a partial item it will adjust itself so it will display a complete item. This can make the control appear to lose its 'Dock'ing behavior. The solution for this is to set the ListBox's IntegralHeight property to false, which specifies that the control not resize itself to fit complete items.

Resizing componenets on a c# form

typically in java if you have a layout manager of somesort, when you resize the page then the components in that panel will resize accordingly. I think my app is missing some sort of layout manager to control resizing as at the moment everything is just static
Is there a way to make it resize on the changing of the form size? say the user makes the page bigger, then the componenets adjust and so on.
Thanks

.NET has layout managers as well.
Personally, I prefer the TableLayoutPanel for my WinForms apps.
Once you layout the Table (using a combination of static/dynamic sized rows/columns) you add your child controls to the table cells. Once you add your controls, you can dock or anchor the controls to the cell so that they are automatically adjusted when the window is re-sized.

Two main options:
Anchoring. Set your control to "anchor" to the sides of your form. This means that if the form resizes, the control will stay a constant distance from that side. So, if you anchor Top, Left and Right, then your control will stay in the same position, but resize horizontally with the width of the form. Play with it. It'll be obvious.
Docking. Set your control to "dock" to a side of the form, or the center. This is usually done with containers, and it will make the widget take up that entire portion of the form no matter how large it gets.

In Windows Forms you make use of the Control.Anchor property, which will cause the control to adjust accordingly when the window resizes.

To do this with windows forms you use the Anchor and Dock properties of the control
See this for a guide on how to use them

Maintaining the size of the control which is located on the form when form is resized

I have one form which size is (325,325) and on which one browser is there and the size of the browser is (321,298) means browser is in the middle of the form.And I want to maintain the size of the browser when form is resized like there should be the same difference of the size between form and browser as it was before resized.

Like the previous answers stated, you should Anchor the control.
You should set the Anchor property to Top, Left, Right, Bottom to let the browser grow/shrink when the form is resized, but maintaining the margins.

You should Anchor the control on the form.
Have a look at
Manage WinForm controls using the
Anchor and Dock properties
Control.Anchor Property
Manage WinForm controls using the
Anchor and Dock properties
Anchoring a control to its parent
ensures that the anchored edges remain
in the same position relative to the
edges of the parent container when the
parent container is resized.

Setting the WebBrowser's Dock property to Fill is the correct answer here. This completely eliminates the possibility that you'll have layout problems when you run your program on a machine that has a different system font size or a different video adapter DPI setting.
If you need room for some kind of gadget or toolbar, be sure to dock it as well (usually Top). Use Format + Order if the browser ends up underneath the gadget.

Use the control's Anchor property to anchor it to all 4 edges of the form. The control will automatically change it's size when the parent form resizes then.
The MSDN article explains the basics. Google finds quite a few interesting links as well.