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Edo
Guest
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 Posted: Sat Jan 29, 2005 11:03 am Post subject: TCustomGrid and DrawCell |
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Hi, I'm writing a component derived from TCostamGrid with goEditing Option
I've a problem in my DrawCell event, I'm not able to read the cells value,
With stinggrid I use
Canvas->TextRect(ARect, ARect.Left+1, ARect.Top+5, Cells[Acol][ARow]);
but Cells property does not exist in TCustomgrid
so, ho can I read cells value?
this is my dDrawCell evnt, thank a lot
bye, edo
void __fastcall TMyGrid::DrawCell(int ACol, int ARow, const TRect
&ARect, TGridDrawState AState)
{
if (AState.Contains(gdSelected))
{
Canvas->Brush->Color = TColor(0x00737373);
Canvas->Font->Color = clWhite;
Canvas->FillRect(ARect);
}
else
{
Canvas->Brush->Color = clWindow;
Canvas->Font->Color = clWindowText;
Canvas->FillRect(ARect);
}
Canvas->Brush->Style = bsClear;
Canvas->TextRect(ARect, ARect.Left+1, ARect.Top+5, ????);
}
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Rafal Z
Guest
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| Posted: Sat Jan 29, 2005 7:49 pm Post subject: Re: TCustomGrid and DrawCell |
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Edo wrote:
| Quote: | Hi, I'm writing a component derived from TCostamGrid with goEditing Option
I've a problem in my DrawCell event, I'm not able to read the cells value,
With stinggrid I use
Canvas->TextRect(ARect, ARect.Left+1, ARect.Top+5, Cells[Acol][ARow]);
but Cells property does not exist in TCustomgrid
so, ho can I read cells value?
this is my dDrawCell evnt, thank a lot
bye, edo
void __fastcall TMyGrid::DrawCell(int ACol, int ARow, const TRect
&ARect, TGridDrawState AState)
{
if (AState.Contains(gdSelected))
{
Canvas->Brush->Color = TColor(0x00737373);
Canvas->Font->Color = clWhite;
Canvas->FillRect(ARect);
}
else
{
Canvas->Brush->Color = clWindow;
Canvas->Font->Color = clWindowText;
Canvas->FillRect(ARect);
}
Canvas->Brush->Style = bsClear;
Canvas->TextRect(ARect, ARect.Left+1, ARect.Top+5, ????);
}
Cells property exists only in TStringGrid, if you need to store data for |
each cell then you have to implement a datastructure for this by
yourself. If you did it then you can declare a Cell proprty with getter
and setter. For example for strings you could use TStringlist for each
column if you want strings to store in cells.
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Remy Lebeau (TeamB)
Guest
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| Posted: Sat Jan 29, 2005 11:05 pm Post subject: Re: TCustomGrid and DrawCell |
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"Edo" <buildweb (AT) infinito (DOT) it> wrote
| Quote: | I've a problem in my DrawCell event, I'm not able to read the cells value
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TCustomGrid has no Cells to begin with. TCustomGrid has no concept of data
at all. It is just a basic generic grid display. It is your own
responsibility to provide your own data storage. Otherwise, derive from
TStringGrid instead of TCustomGrid.
Gambit
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