Make A Control Be On Top
I have this one Image and I want it to be on top of 开发者_如何学Canother image.
(window form application, c#)
In the code you have a few of calls you can make. BringToFront and SendToBack are probably the simplest:
yourControl.BringToFront();
yourControl.SendToBack();
Also you could control that from the control's parent container using Control.ControlCollection.SetChildIndex. For example:
// Bring control to front
MyForm.Controls.SetChildIndex(SomeControl, 0);
Otherwise just click "Bring to Front" or "Send to back" in the designer, as @KeithS has already answered.
If it's one control partially overlapping another, and you want one or the other on top, right-click the image you want on top in the designer, and choose "Bring To Front". There is a "Send To Back" that you can use on the image you want behind the other.
If you want partial transparency, like an alpha mask on the top image or a gradient blend between two images right on top of the other, you'll probably need the more advanced capabilities of WPF graphics. You CAN do pixel-by-pixel effects in WinForms, but there isn't anything built in to Winforms to handle image transparency, and per-pixel manipulation of an Image in Winforms won't take advantage of any graphics acceleration (100% CPU, with the runtime's overhead slowing you down further).
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