LineShape, RectangleShape ect Dont work correctly in Panel Container

[jpskiller]

VB 2010


H,

I have a winform with a splitter control on

Top panel is fixed, headings etc

Bottom Panel will have a list of questions so this is scrollable.

When I try adding Lines or Boxes (PowerPacks Controls) they leave after effects when scrolling up and down. also scrolling seems a little jerky.

1) anyone know how to stop the after effects with
2) any way to make panel scroll smother

Thanks

Paul

[LuckyLuke82]

My experience with PowerPack controls are bad, bunch of errors. If you just need straight line use "____________" in label instead of Lineshape. You could Draw a Rectangle using labels too (or Groupbox ?).

[jpskiller]

My experience with PowerPack controls are bad, bunch of errors. If you just need straight line use "____________" in label instead of Lineshape. You could Draw a Rectangle using labels too (or Groupbox ?).

Cheers, I had never used them before, seem ok on a static form but not anything that moves.

[LuckyLuke82]

Cheers, I had never used them before, seem ok on a static form but not anything that moves.

Believe me that this is not the only issue with them. You'll probably experience in future this too (much bigger issue):
http://stackoverflow.com/questions/1...sic-powerpacks

My advice to you is that seriously consider keeping them. What do you wish to draw anyway, maybe I can help you ?

[jpskiller]

Believe me that this is not the only issue with them. You'll probably experience in future this too (much bigger issue):
http://stackoverflow.com/questions/1...sic-powerpacks

My advice to you is that seriously consider keeping them. What do you wish to draw anyway, maybe I can help you ?

Thanks I decided to to use a group box I had for putting the labels etc in

[LuckyLuke82]

Groupbox and a Label.Text was just a first thing on my mind. You can easily draw a rectangle or line on your form too. Not a lot of work, take a look at this:

https://www.youtube.com/watch?v=xEFs1vAR81c

Same principle goes for drawing a line.

[Shaggy Hiker]

The biggest advantage of the powerpacks that I'm aware of is the fact that you get lines with events that can be at angles. Technically, you can use labels, as already noted, to draw vertical or horizontal lines, but not so much for other lines. You can draw lines at any angles using GDI, but lines like that are not objects and don't have events associated with them. Technically, you might be able to work out an efficient algorithm to figure mouse over on diagonal lines in form mouse move, but that certainly gets more tricky.

It all comes down to what you need from the Powerpacks. The issue I ran into is that tooltips get pretty squirrely with the Powerpacks.

Another question that I'd have is how light lines are relative to labels. Controls can have a fairly heavy cost, and you could easily end up with loads of them if doing something complicated with lines, even if you stuck with horizontal and vertical lines.

[boops boops]

You can draw lines at any angles using GDI, but lines like that are not objects and don't have events associated with them. Technically, you might be able to work out an efficient algorithm to figure mouse over on diagonal lines in form mouse move, but that certainly gets more tricky.

You don't need an algorithm. Use a GraphicsPath to draw the line, and its IsOutlineVisible method for hit testing. BB

[Shaggy Hiker]

That's still an algorithm, it's just that I don't have to draw it.

Thanks for the suggestion, though. I'll look into that. I'm using PowerPacks for something, and it works well for me in most ways, but does have one drawback when it comes to tooltips, so I've been contemplating testing alternative approaches.