Centering controls within a form in .NET (Winforms)? [duplicate]

问题

I'm trying to center a fixed size control within a form.

Out of interest, is there a non-idiotic way of doing this? What I really want is something analogous to the text-align css property.

At the moment, I'm setting the padding property of the surrounding form to a suitable size and setting the Dock property of the control to fill.

回答1:

You could achieve this with the use of anchors. Or more precisely the non use of them.

Controls are anchored by default to the top left of the form which means when the form size will be changed, their distance from the top left side of the form will remain constant. If you change the control anchor to bottom left, then the control will keep the same distance from the bottom and left sides of the form when the form if resized.

Turning off the anchor in a direction will keep the control centered in that direction when resizing.

NOTE: Turning off anchoring via the properties window in VS2015 may require entering None, None (instead of default Top,Left)

回答2:

myControl.Left = (this.ClientSize.Width - myControl.Width) / 2 ;
myControl.Top = (this.ClientSize.Height - myControl.Height) / 2;

回答3:

Since you don't state if the form can resize or not there is an easy way if you don't care about resizing (if you do care, go with Mitch Wheats solution):

Select the control -> Format (menu option) -> Center in Window -> Horizontally or Vertically

回答4:

I found a great way to do this and it will work with multiple controls. Add a TableLayout with 3 columns. Make the center column an absolute size (however much room you need). Set the two outside columns to 100%. Add a Panel to the center column and add any controls you need and place them where you want. That center panel will now remain centered in your form.

回答5:

To center Button in panel o in other container follow this step:

At design time set the position
Go to properties Anchor of the button and set this value as the follow image

回答6:

You can put the control you want to center inside a Panel and set the left and right padding values to something larger than the default. As long as they are equal and your control is anchored to the sides of the Panel, then it will appear centered in that Panel. Then you can anchor the container Panel to its parent as needed.

回答7:

you can put all your controls to panel and then write a code to move your panel to center of your form.

panelMain.Location = 
    new Point(ClientSize.Width / 2 - panelMain.Size.Width / 2, 
              ClientSize.Height / 2 - panelMain.Size.Height / 2);

panelMain.Anchor = AnchorStyles.None;

回答8:

In addition, if you want to align it to the center of another control:

//The "ctrlParent" is the one on which you want to align "ctrlToCenter".
//"ctrlParent" can be your "form name" or any other control such as "grid name" and etc.
ctrlToCenter.Parent = ctrlParent;

ctrlToCenter.Left = (ctrlToCenter.Parent.Width - ctrlToCenter.Width) / 2;
ctrlToCenter.Top = (ctrlToCenter.Parent.Height - ctrlToCenter.Height) / 2;

回答9:

It involves eyeballing it (well I suppose you could get out a calculator and calculate) but just insert said control on the form and then remove any anchoring (anchor = None).

来源：https://stackoverflow.com/questions/491399/centering-controls-within-a-form-in-net-winforms

标签

.net

winforms

center-align