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Messages 1 to 10 of 34 total |
Grid Row varying height and hiding border lines |
Thu, Sep 10 2015 6:49 PM | Permanent Link |
Trinione | Hi:
I am using the Grid component to build Calendar like functionality and need to be able to do 2 things: (1) How can the height of every other Row on the grid be set to say a value of 20. So, Row 1 height = 20 Row 2 height = 50 Row 3 height = 20 Row 4 height = 50 Row 5 height = 20 Row 6 height = 50 .. and so on and (2) How can I disable / set Cell borders and their colors? Thanks. |
Thu, Sep 10 2015 11:41 PM | Permanent Link |
Trinione | Since I am pretty sure this will help others working on manual Grids, this is what I have done thus far.
To change the height of the row/cell. procedure TForm1.Button1Click(Sender: TObject); var i: integer; col: TGridColumn; cel: TGridCell; begin for i := 0 to 1 do begin col := Grid1.NewColumn; if i=0 then begin col.OnCellUpdate := GridColumn1CellUpdate; col.width := 60; end; end; for i := 0 to 2 do // create two blank rows begin Grid1.AppendRow; end; Grid1.Rows[0][1] := 'Row 2'; end; procedure TForm1.GridColumn2CellUpdate(Sender: TObject; ACell: TGridCell); begin if ACell.Index = 0 then begin ACell.Font.Size := 10; ACell.Height := 20; end; if ACell.Index = 1 then ACell.Background.Fill.Color:=clElevateRed; end; |
Fri, Sep 11 2015 9:30 AM | Permanent Link |
Tim Young [Elevate Software] Elevate Software, Inc. timyoung@elevatesoft.com | << (1) How can the height of every other Row on the grid be set to say a value of 20. >> You can do this in a cell update, like you found, but it won't be accounted for properly in the grid updates. In other words, the rows won't fit in the grid properly unless the total height of all of the rows adds up the same as that specified by the RowHeight property. << (2) How can I disable / set Cell borders and their colors? >> This you *can* do in the OnCellUpdate event handler for the applicable grid column. Tim Young Elevate Software www.elevatesoft.com |
Fri, Sep 11 2015 5:54 PM | Permanent Link |
Trinione | <<<< (2) How can I disable / set Cell borders and their colors? >>>>
<<This you *can* do in the OnCellUpdate event handler for the applicable grid column. >> Tim: Oooooookaaaay... Thanks for the Cliffhanger. Now, how can I do it? |
Fri, Sep 11 2015 5:57 PM | Permanent Link |
Trinione | <<<< (1) How can the height of every other Row on the grid be set to say a value of 20. >>>>
<<You can do this in a cell update, like you found, but it won't be accounted for properly in the grid updates. In other words, the rows won't fit in the grid properly unless the total height of all of the rows adds up the same as that specified by the RowHeight property. >> Ah! That explains the mysterious disappearing/reappearing on scroll act I got. Could a solution by to have a Hidden Row that makes up the difference for the total height then? Hmmmm... going and see if that works. |
Sat, Sep 12 2015 7:32 AM | Permanent Link |
Tim Young [Elevate Software] Elevate Software, Inc. timyoung@elevatesoft.com | << Oooooookaaaay... Thanks for the Cliffhanger. Now, how can I do it? >>
Never mind - I forgot that the Border property isn't surfaced for the cells, and you wouldn't be able to set it anyways because it can be overridden by ShowLines changes. Tim Young Elevate Software www.elevatesoft.com |
Sat, Sep 12 2015 7:32 AM | Permanent Link |
Tim Young [Elevate Software] Elevate Software, Inc. timyoung@elevatesoft.com | << Could a solution by to have a Hidden Row that makes up the difference for the total height then? Hmmmm... going and see if that works. >>
Honestly, I wouldn't try to do this right now and just wait until there is proper support for variable-height rows in the grid controls. Tim Young Elevate Software www.elevatesoft.com |
Sun, Sep 13 2015 3:32 AM | Permanent Link |
Trinione | Tim:
I was able to create a lovely Calendar that works perfectly for my needs. Variable row heights would be a fantastic grid feature. Also, maybe properties for the border, but for this project I am able to live without, but I can certainly see its usefullness. Here is the pertinent code: col.OnCellUpdate := GridColumn1CellUpdate; procedure TForm1.GridColumn1CellUpdate(Sender: TObject; ACell: TGridCell); begin SetupCells(ACell); end; procedure TForm1.SetupCells(ACell: TGridCell); begin if (ACell.Index mod 2) = 0 then begin ACell.Font.Size := 12; ACell.Font.Color := clElevateGray; ACell.Background.Fill.Color := clWhite; end else begin ACell.Font.Size := 16; ACell.Background.Fill.Color:=clWhiteSmoke; ACell.Background.Clip := otClient; //end; end; end; Attachments: myEWBCal.png |
Sun, Sep 13 2015 6:29 AM | Permanent Link |
Uli Becker | > I was able to create a lovely Calendar that works perfectly for my needs.
Just to be sure: you are aware of the new calendar control introduced with the latest build? Uli |
Sun, Sep 13 2015 11:38 AM | Permanent Link |
Trinione | Uli Becker wrote:
> I was able to create a lovely Calendar that works perfectly for my needs. << Just to be sure: you are aware of the new calendar control introduced with the latest build? >> Uli: Yes I am aware of the new calendar controls. However, I need a 'calendar' feature that gets and sets data, so I created one manually with the grid. |
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