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DELPHI - cxrid column value

Posted on 2011-09-22
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Last Modified: 2012-08-13
hi,

normally use the database queries, but now I need to work directly on the grid, use cxGrid.

How do I calculate the sum of the values ¿¿of all rows contained in a column?
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Question by:danz67
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4 Comments
 
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Expert Comment

by:Thommy
ID: 36579841
Summing multiple selected rows in a DBGrid
http://delphi.about.com/od/usedbvcl/a/tdbgrid.htm

You can implement it the same way with in a cxgrid...
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LVL 19

Expert Comment

by:Thommy
ID: 36579864
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Author Comment

by:danz67
ID: 36580136
I need to know the value calculated in a column for all rows
and the result must be displayed in a label
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LVL 19

Accepted Solution

by:
Thommy earned 125 total points
ID: 36580799
Replace second parameter of function GetValue(i,3) with the index of your grid column (starting with 0).

Make sure that the column you want to sum only contains numeric values, otherwise you will get an error!!!


var
  i:integer;
  sum : integer 
begin
  for i:=0 to cxGrid1.DataController.RecordCount-1 do begin
    sum:=sum+cxGrid1.DataController.GetValue(i,3);
  end;
  label1.caption:=inttostr(sum);
end;

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