Adding a button to DBGrid Title row at draw time

[daveinhull]

Hi,

Could someone point me in the right direction on how to add a button to the title columns in a DBGrid (I want to add a filter button to each column) at draw time.

I know how to add custom controls to fields, but can't quite figure out how to only add a control to the title row. I'm guessing it's easy, just need a pointer in the right direction,

Thanks
Dave

[garlar27]

Don't know if possible.
The only thing I can think of is using OnDrawColumnCell to draw a Button on the title cell and OnTitleClick to implement the action.

[daveinhull]

Hi garlar77,

Thanks for the pointer, I'll give that a go although can't I use the OnClick event of the button to do what I need?

Just one other quick question, how can I detect if it is the Title Cell, whiuch was my real query as I only know how to draw cells on all row?

Thanks.

[lucamar]

Just one other quick question, how can I detect if it is the Title Cell, whiuch was my real query as I only know how to draw cells on all row?

Use DBGrid.CellToGridZone(). The result type is declared in grids.pas as:

Code: Pascal  [Select][+][-]

1. type TGridZone = (
2.   gzNormal,            
3.   gzFixedCols,         
4.   gzFixedRows,         
5.   gzFixedCells,        
6.   gzInvalid            
7. );

[daveinhull]

Many thanks lucamar

[daveinhull]

Hi,

So CellToGridZone requires two parameters, Col (which I can get) and Row which I'm not sure how I get? I thought about using the dataset row, but of course that doesn't indicate a header row! Any pointers?

Dave

[daveinhull]

Anyone??