Mega Code Archive
How to focus a specific cell (by field name) in a DBGrid Delphi component
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Title: How to focus a specific cell (by field name) in a DBGrid Delphi component
Here's a simple trick to set the input focus to a specific cell of a TDBGrid component. Given the DBGrid's active row and field name (or the column index) the cell receives the input focus and becomes active.
The FocusCell procedure (two overloaded versions) receives a DBGrid as the first parameter and the name of the field you want to set the input focus to, as the second parameter.
~~~~~~~~~~~~~~~~~~~~~~~~~
procedure FocusCell(
const DBGrid : TDBGrid;
const column : integer) ; overload;
begin
with TStringGrid(DBGrid) do
begin
Col := column;
SetFocus;
end;
end;
procedure FocusCell(
const DBGrid : TDBGrid;
const fieldName : string) ; overload;
var
column : integer;
idx : integer;
begin
column := 0;
for i:= 0 to -1 + DBGrid.Columns.Count do
begin
if DBGrid.Columns[idx].FieldName = fieldName then
begin
column := 1 + idx;
Break;
end;
end;
if column 0 then FocusCell(DBGrid,column) ;
end;
~~~~~~~~~~~~~~~~~~~~~~~~~
Usage (suppose a dataset with field "ContactName" is displayed by "DBGrid1"):
FocusCell(DBGrid1,'ContactName') ;
More TDBGrid related tips and tricks
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