I use cxGrid and I want import a excel file to cxgrid. I wrote this code a function.
But, its wrong, because cxGrid dont know RowCount and ColCount. I would like know, what can I use, what is similar? Help me! Thank you!
function Xls_To_cxGrid(AGrid: TcxGrid; AXLSFile: string): Boolean;
const
xlCellTypeLastCell = $0000000B;
var
XLApp, Sheet: OLEVariant;
RangeMatrix: Variant;
x, y, k, r: Integer;
begin
Result := False;
XLApp := CreateOleObject('Excel.Application');
try
XLApp.Visible := False;
XLApp.Workbooks.Open(AXLSFile);
Sheet := XLApp.Workbooks[ExtractFileName(AXLSFile)].WorkSheets[1];
Sheet.Cells.SpecialCells(xlCellTypeLastCell, EmptyParam).Activate;
x := XLApp.ActiveCell.Row;
y := XLApp.ActiveCell.Column;
AGrid.RowCount := x;
AGrid.ColCount := y;
RangeMatrix := XLApp.Range['A1', XLApp.Cells.Item[X, Y]].Value;
k := 1;
repeat
for r := 1 to y do
AGrid.Cells[(r - 1), (k - 1)] := RangeMatrix[K, R];
Inc(k, 1);
AGrid.RowCount := k + 1;
until k > x;
RangeMatrix := Unassigned;
finally
if not VarIsEmpty(XLApp) then
begin
XLApp.Quit;
XLAPP := Unassigned;
Sheet := Unassigned;
Result := True;
end;
end;
end;
The cxGrid is just a container for ChartViews, TableViews, CardViews and BandedTableViews. Being a container, it does not know anything about rows and columns. Because you want to replace a StringGrid I suggest using a (non-DB) TableView.
To get a TableView...
(See also the DX help topic "Grid Levels" unter the heading "Specifying Associated Grid Views".)
Instead of "RowCount" you would then use YourView.DataController.RecordCount
. "ColCount" would be YourView.ColumnCount
. You can access cell values with YourView.DataController.Values[...]
. To speed up the populating the view I'd surround it with
YourView.DataController.BeginUpdate;
try
YourView.DataController.RecordCount := x;
// ...
finally
YourView.DataController.EndUpdate;
end;
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.