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Re: Two "basic" operations on GridCtrl [message #21082 is a reply to message #21027]

Sat, 02 May 2009 12:14

kbyte is currently offline

kbyte
Messages: 87
Registered: July 2008

Member

Hi,

I a trying another feature of the dbgridCtrl but without success

In the dbgrid control I have columns with text, others with numbers other with dates. I need that sorting capability respect the type of the data that the sorted column has.
To the best of my knowledge, dbgrid sorts columns using text data type. What about if we want to cutomize the sorting?

I am trying that with

dbGridCtrl.WhenSort= THISBACK(OnCustomSort);

But, when OnCustomSort is called how do we know which column was click to be sorted?
How to implement custom sort inside OnCustomSort? A simple example would be very appreciated.

One more question please:

Can we "turn off" a callback during runtime?
Like this:

For some moments i need that dbgrid implement custom sorting so i do this:
dbGridCtrl.WhenSort= THISBACK(OnCustomSort);

But when i want to return to the default sorting of the dbgrid, how to turn off this callback?
I tryed to set NULL in WhenSort but compiler complains Sad

Sad

Thanks a lot

Kim

[Updated on: Sat, 02 May 2009 12:16]

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[Message index]

		Two "basic" operations on GridCtrl By: kbyte on Sun, 26 April 2009 18:27
		Re: Two "basic" operations on GridCtrl By: unodgs on Sun, 26 April 2009 20:46
		Re: Two "basic" operations on GridCtrl By: kbyte on Sun, 26 April 2009 21:17
		Re: Two "basic" operations on GridCtrl By: unodgs on Sun, 26 April 2009 21:43
		Re: Two "basic" operations on GridCtrl By: kbyte on Mon, 27 April 2009 00:04
		Re: Two "basic" operations on GridCtrl By: kbyte on Mon, 27 April 2009 00:35
		Re: Two "basic" operations on GridCtrl By: unodgs on Mon, 27 April 2009 08:47
		Re: Two "basic" operations on GridCtrl By: kbyte on Sat, 02 May 2009 12:14
		Re: Two "basic" operations on GridCtrl By: unodgs on Mon, 04 May 2009 09:39
		Re: Two "basic" operations on GridCtrl By: kbyte on Mon, 04 May 2009 12:52
		Re: Two "basic" operations on GridCtrl By: unodgs on Mon, 04 May 2009 13:37
		Re: Two "basic" operations on GridCtrl By: kbyte on Mon, 04 May 2009 14:02
		Re: Two "basic" operations on GridCtrl By: unodgs on Mon, 04 May 2009 15:22
		Re: Two "basic" operations on GridCtrl By: kbyte on Mon, 04 May 2009 15:52
		Re: Two "basic" operations on GridCtrl By: pacoquintana on Fri, 13 September 2013 19:35

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