التفاف النص
#1
السلام عليكم.
هل يوجد طريقة لجعل خلايا dbgrid تظهر النص كاملا على أكثر من سطر في الخلية الواحدة. يعني هل يوجد خاصية التفاف النص في dbgrid
الرد
#2
وعليكم السلام
هي تسمى multiline  اي تعدد الاسطر
جرب هذا
كود :
procedure TForm4.Grid1DrawCell(Sender: TObject; ACol, ARow: Integer;
Rect: TRect; State: TGridDrawState); 
begin
Grid1.Canvas.TextRect(Rect, Rect.Left+1, Rect.Top+1, WrapText(Grid1.Cells[ACol,ARow], 40));
end;


هذا مثال أخر

كود :
type
  TForm1 = class(TForm)
    StringGrid1: TStringGrid;
    procedure FormCreate(Sender: TObject);
    procedure StringGrid1DrawCell(Sender: TObject; ACol, ARow: Integer;
      Rect: TRect; State: TGridDrawState);
  private
    procedure FillWithRandomText(AGrid: TStringGrid);
    procedure UpdateRowHeights(AGrid: TStringGrid);
  end;

procedure TForm1.FillWithRandomText(AGrid: TStringGrid);
const
  S = 'This is a sample'#13#10'text that contains'#13#10'multiple lines.';
var
  X: Integer;
  Y: Integer;
begin
  for X := AGrid.FixedCols to AGrid.ColCount - 1 do
    for Y := AGrid.FixedRows to AGrid.RowCount - 1 do
      AGrid.Cells[X, Y] := Copy(S, 1, 8 + Random(Length(S) - 8));
  UpdateRowHeights(AGrid);
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
  FillWithRandomText(StringGrid1);
end;

procedure TForm1.StringGrid1DrawCell(Sender: TObject; ACol, ARow: Integer;
  Rect: TRect; State: TGridDrawState);
begin
  with TStringGrid(Sender) do
    if Pos(#13#10, Cells[ACol, ARow]) > 0 then
    begin
      Canvas.FillRect(Rect);
      Inc(Rect.Left, 2);
      Inc(Rect.Top, 2);
      DrawText(Canvas.Handle, PChar(Cells[ACol, ARow]), -1, Rect,
        DT_NOPREFIX or DT_WORDBREAK);
    end;
end;

procedure TForm1.UpdateRowHeights(AGrid: TStringGrid);
var
  Y: Integer;
  MaxHeight: Integer;
  X: Integer;
  R: TRect;
  TxtHeight: Integer;
begin
  for Y := AGrid.FixedRows to AGrid.RowCount - 1 do
  begin
    MaxHeight := AGrid.DefaultRowHeight - 4;
    for X := AGrid.FixedCols to AGrid.ColCount - 1 do
    begin
      R := Rect(0, 0, AGrid.ColWidths[X] - 4, 0);
      TxtHeight := DrawText(AGrid.Canvas.Handle, PChar(AGrid.Cells[X, Y]), -1,
        R, DT_WORDBREAK or DT_CALCRECT);
      if TxtHeight > MaxHeight then
        MaxHeight := TxtHeight;
    end;
    AGrid.RowHeights[Y] := MaxHeight + 4;
  end;
end;

[صورة مرفقة: phXGU.png]

كود :
var
  R: TRect;
begin
  NLDStringGrid1.Columns.Add;
  NLDStringGrid1.Columns.Add;
  NLDStringGrid1.Cells[1, 1] := 'Sample test'#13#10'Second line';
  NLDStringGrid1.Columns[1].MultiLine := True;
  NLDStringGrid1.AutoRowHeights := True;
  SetRect(R, 2, 2, 3, 3);
  NLDStringGrid1.MergeCells(TGridRect(R), True, True);
  NLDStringGrid1.ColWidths[2] := 40;
  NLDStringGrid1.Cells[2, 2] := 'Sample test'#13#10'Second line';
end;


[صورة مرفقة: fx6eV.png]


هنا مثال اخر

كود :
procedure DrawSGCell(Sender : TObject; C, R : integer; Rect : TRect;
          Style : TFontStyles; Wrap : boolean; Just : TAlignment;
          CanEdit : boolean);
  { draws formatted contents in string grid cell at col C, row R;
    Style is a set of fsBold, fsItalic, fsUnderline and fsStrikeOut;
    Wrap invokes word wrap for the cell's text; Just is taLeftJustify,
    taRightJustify or taCenter; if CanEdit false, cell will be given
    the background color of fixed cells; call this routine from
    grid's DrawCell event }
var
  S        : string;
  DrawRect : TRect;
begin
  with (Sender as tStringGrid), Canvas do begin
    { erase earlier contents from default drawing }
    if (R >= FixedRows) and (C >= FixedCols) and CanEdit then
      Brush.Color:= Color
    else
      Brush.Color:= FixedColor;
    FillRect(Rect);
    { get cell contents }
    S:= Cells[C, R];
    if length(S) > 0 then begin
      case Just of
        taLeftJustify  : S:= ' ' + S;
        taRightJustify : S:= S + ' ';
        end;
      { set font style }
      Font.Style:= Style;
      { copy of cell rectangle for text sizing }
      DrawRect:= Rect;
      if Wrap then begin
        { get size of text rectangle in DrawRect, with word wrap }
        DrawText(Handle, PChar(S), length(S), DrawRect,
          dt_calcrect or dt_wordbreak or dt_center);
        if (DrawRect.Bottom - DrawRect.Top) > RowHeights[R] then begin
          { cell word-wraps; increase row height }
          RowHeights[R]:= DrawRect.Bottom - DrawRect.Top;
          SetGridHeight(Sender as tStringGrid);
          end
        else begin
          { cell doesn't word-wrap }
          DrawRect.Right:= Rect.Right;
          FillRect(DrawRect);
          case Just of
            taLeftJustify  : DrawText(Handle, PChar(S), length(S), DrawRect,
                               dt_wordbreak or dt_left);
            taCenter       : DrawText(Handle, PChar(S), length(S), DrawRect,
                               dt_wordbreak or dt_center);
            taRightJustify : DrawText(Handle, PChar(S), length(S), DrawRect,
                               dt_wordbreak or dt_right);
            end;
          end
        end
      else
        { no word wrap }
        case Just of
          taLeftJustify  : DrawText(Handle, PChar(S), length(S), DrawRect,
                             dt_singleline or dt_vcenter or dt_left);
          taCenter       : DrawText(Handle, PChar(S), length(S), DrawRect,
                             dt_singleline or dt_vcenter or dt_center);
          taRightJustify : DrawText(Handle, PChar(S), length(S), DrawRect,
                             dt_singleline or dt_vcenter or dt_right);
          end;
      { restore no font styles }
      Font.Style:= [];
      end;
    end;
end;
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