Components for Delphi and C++ Builder.

Hi. I test something. Your grid and your memtable. In the grid i have a lot at columns, around 30, numbers and strings, the values from the table. I want to go line by line in the table and if a value from one column is null, to make something.
MT->First();
For(int i=0; i <MT->RecordCount;i++)
{//

MT->Next();
}

The cursor moves in the grid, line by line BUT VERY SLOW. If i reduce the dimensions of the form, and the grid implicit, the speed increase but so slow...It is a method to speed up this procedure? To see the cursor go line by line but with more speed?


Thanks!

Hello

DBGridEh always renders data in cells as fast as possible.
One of the options to speed up movement through the DataSet is to completely block Grid rendering when performing a movement operation through the DataSet.
The methods TDataSet.DisableControls, TDataSet.EnableControls are used for this.

_________________
Best regards
EhLib Support Team

Thanks for your answer...I want to try something different

I want to select Programmatically some rows from your grid and after work only with this N rows selected....

TByteDynArray X = DBGridEh->SelectedRows->Items[i];
MTFP->GotoBookmark(X);

But i don't know how to selectet at runtime some rows, not by mouse or keyboard, but use a logical condition, like some column ISNULL, select this row.

An example please. C++ if possible
Thanks!