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Displaying items 166 to 180 of 508, page 12 of 34

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TPlannerRangeSelector
When doing a copy & paste of a TPlannerDatePicker I get an access violation

This is a known design time problem of the TPlannerDatePicker that is non-trivial. It has to do with the internal Calendar instance. So far, we have unfortunately not found a workaround or solution for this. Please drag a new component on the form instead of doing a copy & paste.

TColumnListBox
Fast loading and saving of many items

To add many items to the TColumnListBox, the use of BeginUpdate / EndUpdate will significantly accelerate this.
Example for fast save & load of 5000 items:

procedure TForm4.Button1Click(Sender: TObject); var
  i,j: integer;
  li: TListBoxItem;
begin
  with columnlistbox1 do
  begin
  Columns.Clear;
  Columns.Add;
  Columns.Add;
  Columns.Add;

  Columns[0].Width := 80;
  Columns[1].Width := 80;
  Columns[2].Width := 80;

  BeginUpdate;

  for i := 1 to 5000 do
  begin
    li := ListBoxItems.Add;
    for j := 1 to 3 do
    begin
      li.Strings.Add('Col '+inttostr(j)+': Row '+ inttostr(i));
    end;
  end;

  ListBoxItems.SaveToFile('c:.txt');
  EndUpdate;
  end;
end;

procedure TForm4.Button2Click(Sender: TObject); begin
  with columnlistbox1 do
  begin
  Columns.Clear;
  Columns.Add;
  Columns.Add;
  Columns.Add;

  Columns[0].Width := 80;
  Columns[1].Width := 80;
  Columns[2].Width := 80;

    BeginUpdate;
    ListBoxItems.LoadFromFile('c:.txt');
    EndUpdate;
  end;

end;

TAdvSmoothDatePicker
How to change the name of the week days.

You can override the ShortDayNames array in the SysUtils unit. For example to change the name of the week days from 'Sun Mon Tue Wed Thu Fri Sat' to 'S M T W T F S' :

ShortDayNames[1] := 'S';
ShortDayNames[2] := 'M';
ShortDayNames[3] := 'T';
ShortDayNames[4] := 'W';
ShortDayNames[5] := 'T';
ShortDayNames[6] := 'F';
ShortDayNames[7] := 'S';

TAdvStringGrid
How to filter on checkbox state

If you wish to filter rows that have the checkbox selected, use a datacheckbox, i.e. a checkbox representing its state depending on the value of the cell being grid.CheckTrue / grid.CheckFalse. You can perform the filter on these grid.CheckTrue / grid.CheckFalse values.

TAdvPanel
When using the TAdvPanelGroup scrollbar, child panels are drawn over the TAdvPanelGroup caption

This is a known limitation. A container control can't partially hide a child control. As an alternative, drop the TAdvPanelGroup without caption on a TAdvPanel that has a caption to have the same result.

TAdvMemo
How to check if a TAdvMemo is empty

You can use:

if (advmemo.Lines.RealCount = 0) then ...

TAdvStringGrid
Using balloons

- Only when theming is enabled in the project options, the balloon will be visible.

- If you reparent the grid, the balloon should only be enabled AFTER the final grid's parent is set.

- Balloon hints are an API from Microsoft Windows and this does not support HTML formatted text. This is a limitation of the Microsoft Windows balloon API.

- There is a limitation to the number of characters in a balloon. This is also a limitation of the Microsoft Windows balloon API that we cannot workaround. For a regular cell comment, there is no such length limitation.

- From TAdvStringGrid version v4.5, several new balloon notification capabilities have been added. See example 76: https://www.tmssoftware.com/site/asg76.asp

- When using AddBalloon& AddImageIdx on the same cell , the AddBalloon will not work. These 2 features are mutually exclusive, only one type per call can be added.

- When grid. Balloon.Enable = true, it will automatically show a balloon when a cell contains text, i.e. it will show the text of the cell in the balloon. To prevent this, add the following event handler:

procedure TForm4.AdvStringGrid1CellBalloon(Sender: TObject; ACol, ARow: Integer;
  var ATitle, AText: string; var AIcon: Integer);
begin
  if not advstringgrid1.HasBalloon(acol,arow) then
  begin
    atitle := '';
    atext := '';
  end;
end;

TAdvTaskDialog
How to translate the common buttons Yes, No, ...

The button text comes from the Unit Consts which is the common Delphi unit for translatable text also the text on buttons. If you use a Delphi translation tool, it should handle it correct to use a translated Consts unit and it should change the text on task dialog buttons too.

TAdvStringGrid
How to prevent navigation to specific cells

If you want to prevent navigation to specific cells, please implement the OnSelectCell event and set the parameter CanSelect = false for cells you want to prevent to be selected.

THTMLTreeView
How to add/remove and get/set state of radiobuttons & checkboxes

Following methods are available to add/remove and get/set state of radiobuttons & checkboxes:

htmltreeview.SetRadioButton();
htmltreeview.GetRadioButton();
htmltreeview.RemoveRadioButton();

htmltreeview.SetNodeCheck();
htmltreeview.GetNodeCheck();
htmltreeview.RemoveNodeCheck();

TDBAdvGrid
When I run my application in C++Builder I get an error: 'unresolved external Gdiplus...referenced from advgdip.pas'

When using components that use GDI+, make sure that your project's main CPP file includes the line:

#pragma link "gdiplus.lib"

TAdvSmoothListBox
How to select multiple items

As this is not always suitable for every uses we have implemented a method which is able to select multiple items:

 AdvSmoothListBox1.Items.Select([3, 4, 5, 6]);

Just enter the indexes of the items to select, this will select all items in the array. You could write a function which returns an array of integers based on the level index and the starting index.

TAdvStringGrid
Printing tips

How to print colored, bold, italic, ... text:

Assign your OnGetCellColor event handler also to grid.OnGetCellPrintColor()

How to print images, a company logo, ...:

Set grid.PrintSettings.PrintGraphics = true

How to print a particular row in bold:

You can do this via the event OnGetCellPrintColor, for example:

procedure TForm2.AdvStringGrid1GetCellPrintColor(Sender: TObject; ARow,
  ACol: Integer; AState: TGridDrawState; ABrush: TBrush; AFont: TFont); begin
  if arow = 7 then
    afont.Style := [fsBold]
  else
    afont.Style := [];
end;

How to print multiple grids on a page:

Please see sample 25: https://www.tmssoftware.com/site/asg25.asp

TExeinfo
How to get version of project as Major.Minor?

TEXEInfo returns the version as a string consisting of 4 numbers formatted as: MAJVER.MINVER.RELVER.BUILDVER.
If you want only MAJVER & MINVER ( for example version 1.2 instead of version 1.2.3.4 ), you'd have to split this string.

TAdvStringGrid
How to programmatically start inplace editing

Make sure to FIRST set the grid.col/grid.row to the cell that must be edited and make sure the grid has focus. Then you can programmatically start inplace editing with grid.ShowInplaceEdit;

grid.Col := yourcolumn;
grid.Row := yourrow;
grid.SetFocus;
grid.ShowInplaceEdit;

How to force the user to edit an empty cell.

Implement the OnCellValidate event like:

procedure TForm4.AdvStringGrid1CellValidate(Sender: TObject; ACol,
  ARow: Integer; var Value: string; var Valid: Boolean);
begin
  Valid := Value <> '';
end;

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