Re: Grid from TexBoxes is Slow

Whilst it fun to build your own grid, buying an advanced component in would save time and money and add enormous value to your project. There are quite a few to choose from.... one I found quickly was

http://www.infragistics.com/dotnet/netadvantage/winforms/wingrid.aspx#Overview

This is not the only datagrid 3rd party control - it's the first I found.

Without priority support it costs $795, roughly £400, if you work out how long it would take you to create this component..... the maths is easy. And only stupid managers would deny the cost savings( don't put it like that though!)


Adrian









-----Original Message-----
From: Discussion forum for developers using Windows Forms to build apps and controls [mailto:[email protected]] On Behalf Of Brady Kelly
Sent: 5-November-2007 10:55
To: [email protected]
Subject: Re: Grid from TexBoxes is Slow

I have requirements the disqualify the DataGridView.  I need to have
interleaved rows with different column layouts, and I need e.g. three column
header rows, also all with different column layouts.  If you can offer any
advice on how to achieve this with a DataGridView I would concider you a
hero and set about trying to do it post haste.

> -----Original Message-----
> From: Discussion forum for developers using Windows Forms to build apps
> and controls [mailto:[email protected]] On Behalf Of
> Adrian Martin
> Sent: 05 November 2007 12:49 PM
> To: [email protected]
> Subject: Re: [DOTNET-WINFORMS] Grid from TexBoxes is Slow
>
> I guess the DataGridViews only look like rows and rows of textboxes,
> when the Grid has an active cell it dynamically creates the correct
> control( eg TextBox ) and postions it on top and infront of the cell.
>
> I don't have a grid handy at the minute but WinSpy++ should confirm
> this.....
>
> Surely the shortcut to speeding up your grid is to replace it with a
> DataViewGrid!
>
>
>
>
> -----Original Message-----
> From: Discussion forum for developers using Windows Forms to build apps
> and controls [mailto:[email protected]] On Behalf Of
> Brady Kelly
> Sent: 5-November-2007 09:32
> To: [email protected]
> Subject: Grid from TexBoxes is Slow
>
> I've build a prototype custom grid using rows of TextBox controls, but
> it's
> quite slow.  Now if I use a DataGridView, with all my columns as
> textbox
> columns, I imagine all the cells are textboxes as well, and that grid
> has
> huge amounts more functionality than mine.  So, I believe I can greatly
> improve the speed of my grid, still using the textbox approach, but I
> haven't a clue how.  Some advice would be great.
>
>
>
> A question that keeps cropping up in my thoughts is, do I continue
> delegating the drawing of borders to the individual textboxes, or do I
> draw
> the grid independently, and place borderless textboxes in the cells.
> Is
> there even much of a difference?
>
>
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Johnston Press plc      Registered in Scotland no. SC015382        Registered Office: 53 Manor Place, Edinburgh, EH3 7EG

Opinions expressed in this email are those of the writer and not the company.  E-mail traffic is monitored within Johnston Press and messages may be viewed.  This e-mail and any files with it are solely for the use of the addressee(s).  If you are not the intended recipient, you have received this e-mail in error.  Please delete it or return it to the sender or notify us by email at [email protected]