实例5
本例功能:
在FireMonkey中StringGrid对于字体的调整由于没有font属性和onDrawCell事件使得变得有些麻烦，后来费了一些功夫才找到方法。但由于XE3中某些属性还是没有，（比如说：StGrid.RealignContent;）于是下载了XE4才得以修改成功。
1、字体修改为居中，红色，20号
运行效果图:
unit Unit22;
interface
uses
System.SysUtils, System.Types, System.UITypes, System.Rtti, System.Classes,
System.Variants, FMX.Types, FMX.Controls, FMX.Forms, FMX.Dialogs,
FMX.StdCtrls, FMX.Grid, FMX.Layouts, FMX.Header, Data.DB, Datasnap.DBClient;
type
TForm22 = class(TForm)
StringGrid1: TStringGrid;
Header1: THeader;
StyleBook1: TStyleBook;
StringColumn1: TStringColumn;
StringColumn2: TStringColumn;
StringColumn3: TStringColumn;
procedure FormCreate(Sender: TObject);
procedure ChangeGridFont;
procedure GridCellStyle_alRight(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form22: TForm22;
implementation
{$R *.fmx}
procedure AlignHeaders(StGrid: TStringGrid);
var Header: THeader;
I: Integer;
begin
Header := THeader(StGrid.FindStyleResource('header'));
if Assigned(Header) then
begin
for I := 0 to Header.Count - 1 do
begin
Header.Items[I].TextAlign := TTextAlign(0);
Header.Items[I].StyledSettings:=[]; //如果没有这句，则字体大小，颜色不会改变
with Header.Items[I].Font do
begin
Size := 22;
Style := [TFontStyle.fsBold];
end;
end;
Header.Height := 48;
end;
StGrid.RealignContent;
end;
procedure TForm22.FormCreate(Sender: TObject);
var i,j:integer;
begin
AlignHeaders(StringGrid1);
for i := 0 to StringGrid1.RowCount-1 do
for j := 0 to StringGrid1.ColumnCount-1 do
StringGrid1.Cells[j,i]:=Format('第%d行,第%d列', [i,j]);;
ChangeGridFont;
//StringGrid1.Columns[j].Width:=200;
//StringGrid1.Columns[1].Width:=190;
//StringGrid1.Columns[2].Width:=80;
end;
procedure TForm22.GridCellStyle_alRight(Sender: TObject);
var
TC: TTextCell;
begin
AlignHeaders(StringGrid1);
if ( Sender <> Nil ) and ( Sender is TTextCell ) then
begin
TC := TTextCell( Sender );
TC.StyledSettings:=[]; //如果没有这句，则字体大小，颜色不会改变
TC.FontColor := TAlphaColors.Red;
TC.Font.Family := '宋体';
TC.Font.Style := [ TFontStyle.fsBold, TFontStyle.fsItalic ];
TC.Font.Size := 20;
TC.TextAlign := TTextAlign.taLeading;
end;
end;
procedure TForm22.ChangeGridFont;
var
i: Integer;
Col: Integer;
// Row: Integer;
CellCtrl: TStyledControl;
begin
for Col := 0 to StringGrid1.ColumnCount - 1 do
begin
for i := 0 to StringGrid1.Columns[Col].ChildrenCount - 1 do
begin
CellCtrl := TTextCell(StringGrid1.Columns[Col].Children[i]);
if ( CellCtrl <> Nil ) and ( CellCtrl is TTextCell ) then
TTextCell(CellCtrl).OnApplyStyleLookup := GridCellStyle_alRight;
end;
end;
end;
end.
