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TMS SOFTWARE

TADVSTRINGGRID

DEVELOPERS GUIDE

91 | Page

Example: setting form values through the control ID and ControlValues property:

with AdvStringGrid1 do

begin

ControlValues[1,ARow,'CK1'] := 'TRUE';

ControlValues[1,ARow,'ED1'] := 'Name'+IntToStr(ARow);

ControlValues[1,ARow,'ED2'] := 'PreName'+IntToStr(ARow);

ControlValues[1,ARow,'CO1'] := 'MO';

ControlValues[1,ARow,'CO2'] := 'VISA';

ControlValues[1,ARow,'ED3'] := DateToStr(Now + ARow);

end;

The events that are used for handling form controls are :

OnControlClick : event triggered when a mini HTML form control is clicked

OnControlComboList : event querying the values for a combobox as well as its style

OnControlEditDone : event triggered when editing of the mini HTML form control starts

All events return the cell for the control, the control ID, type and value. For the

OnControlComboList event, a stringlist is passed as parameter where the values that need to be

displayed in the combobox can be added. With the Edit parameter, the combobox can be set as

either dropdownlist (Edit = False) or as editable combobox (Edit = true).

Example: Using the OnControlComboList event for setting combobox items in a form:

procedure TForm1.AdvStringGrid1ControlComboList(Sender: TObject; ARow,

ACol: Integer; CtrlID, CtrlType, CtrlVal: String; Values: TStringList;

var Edit: Boolean; var DropCount: Integer);

begin

Values.Clear;

if CtrlID = 'CO1' then

begin

Values.Add('MO');

Values.Add('TU');

Values.Add('WE');

Values.Add('TH');

Values.Add('FR');

Values.Add('SA');

Values.Add('SU');

Edit := False; // combo dropdownlist

end;

if CtrlID = 'CO2' then

begin

Values.Add('VISA');

Values.Add('AMEX');

Values.Add('MASTERCARD');

Values.Add('CASH');

Values.Add('N/A');

Edit := True; // combo dropdown edit

end;

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TMS SOFTWARE

TADVSTRINGGRID

DEVELOPERS GUIDE

92 | Page

TAdvStringGrid miscellaneous display control

Showing active cell in fixed cells

With the property ActiveCellShow set true, it is possible to indicate the fixed row and column cell

for column and row where the focus cell is found, in a different color and different font. The

background color of the fixed cell is set with ActiveCellColor, the font is set with the ActiveCellFont

property. For normal display, the fixed cell uses the FixedColor background color and FixedFont for

text.

Note: when active cell display is activated and multiple fixed columns or fixed rows are shown in

the grid, the active cells are displayed on the innermost fixed columns/rows.

Background gradient or bitmap

TAdvStringGrid can show a bitmap or gradient as background in fixed cells only, normal cells only or

for all cells. The background bitmap is set with the grid.BackGround.Bitmap property. The selection

for which cells the background should be displayed is set with grid.BackGround.Cells. This

background bitmap can be tiled (grid.BackGround.Display = bdTile) or displayed at a fixed

(grid.BackGround.Display = bdFixed) position (set with grid.BackGround.Top and

grid.BackGround.Left)

To show a background gradient, set grid.Background.Display to bdGradientVert or bdGradientHorz

and select gradient start and end color with grid.Background.Color and grid.Background.ColorTo.

Bands

Banding of alternate colors is enabled in TAdvStringGrid with setting grid.Bands.Active = True.

The alternating colors are set with grid.Bands.PrimaryColor and grid.Bands.SecondaryColor. The

number of rows to display in primary color is set with grid.Bands.PrimaryLength, the number of rows

to display in secondary color is set with grid.Bands.SecondaryLength. Finally, it can be selected

whether the banding should be printed or not with the grid.Bands.Print property.

Note: when using a descendent class such as TAdvColumnGrid or TDBAdvGrid, it is required to set

the property ShowBands = true for the columns where bands should be displayed.

Control look

Various settings are combined here that control how inplace controls look in the grid. The

ControlLook property has following subproperties:

ButtonPrefix: Boolean;

When true, a & character is treated as shortcut prefix

and makes the next letter shortcut character that is

displayed underlined. When ButtonPrefix = false, the

& character is displayed literally in the button

control.

CheckAlwaysActive: Boolean;

When true, a checkbox is always displayed as active,

irrespective of the readonly state of the cell

CheckedGlyph: TBitmap;

Sets the glyph for a custom checked checkbox

CheckSize: Integer;

Sets the size of a checkbox

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TMS SOFTWARE

TADVSTRINGGRID

DEVELOPERS GUIDE

93 | Page

Color: TColor;

Sets the color for Borland style checkbox and

radiobuttons

CommentColor: TColor;

Sets the default comment triangle indicator color

ControlStyle: TControlStyle;

See below

DropDownAlwaysVisible: Boolean;

When true, the combobox dropdown button is always

displayed, irrespective of the editing mode

DropDownCount: integer;

Sets the nr. of items displayed in the dropdown of

inplace combobox editors

FixedDropDownButton: Boolean;

When true, a fixed cell has an additional right side

dropdown button when the mouse hovers the cell

FixedGradient*: TColor;

Series of properties that control the top & bottom

gradient of the fixed cell in normal, hot & down

state.

FlatButton: Boolean;

When true, inplace buttons are displayed in flat style

NoDisabledButtonLook: Boolean;

By default, buttons added in the grid in read only

cells are shown as disabled. To override this, set this

property to true.

NoDisabledCheckRadioLook: Boolean

By default, checkboxes and radiobuttons added in the

grid in read only cells are shown as disabled. To

override this, set this property to true.

ProgressBorderColor: TColor;

Sets the color of a progress bar border

ProgressMarginX: Integer;

Horizontal margin on left and right for the

progressbar in a cell

ProgressMarginY: Integer;

Vertical margin on top and below for the progressbar

in a cell

ProgressXP: Boolean;

When true, the progressbar is drawn with the

Windows XP visual style

RadioAlwaysActive: Boolean;

When true, a radiobutton is always displayed as

active, irrespective of the readonly state of the cell

RadioOffGlyph: TBitmap;

Sets the glyph for a custom unchecked radiobutton

RadioOnGlyph: TBitmap;

Sets the glyph for a custom checked radiobutton

RadioSize: Integer;

Sets the size of a radiobutton

SpinButtonsAlwaysVisible: Boolean;

When true, buttons of spin editor inplace editors are

always visible, irrespective of the editing state of a

cell.

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TMS SOFTWARE

TADVSTRINGGRID

DEVELOPERS GUIDE

94 | Page

UnCheckedGlyph: TBitmap;

Sets the glyph for a custom unchecked checkbox

The ControlStyle can have following values:

TControlStyle = (csClassic,csFlat,csWinXP,csBorland,csTMS,csGlyph,csTheme);

With:

csBorland

Borland style checkboxes and radiobuttons

csClassic

Normal Windows control look

csFlat

Flat control look

csGlyph

Use glyphs defined in ControlLook for checkboxes and radiobuttons

csTheme

Use Windows theme API (available in Windows XP or later) to draw checkboxes,

radiobuttons, buttons, …

csTMS

TMS style checkboxes and radiobuttons

csWinXP

Fixed Luna style control look (works on all Windows versions)

Row indicator

With the property grid.RowIndicator: TBitmap a bitmap can be set that is shown in the first fixed

column for the active row. A small arrow bitmap can be set for example to show the active row in a

similar way as the DB cursor is shown in a DB grid.

Global cell text appearance settings

Several grid properties affect global look of cell text which are:

AutoNumAlign When true, automatically selects right alignment for cells containing numeric data

only

EnhTextSize

When true, text that does not fit in the grid cell is displayed with end ellipsis

MultiLineCells When true, cell text containing line feeds is displayed on multiple lines

URLFull

When true, the protocol specifier is displayed along with the hyperlink, otherwise

it is used internally but not displayed

URLShow

When true, cell text starting with protocol specifiers http://, ftp://, nntp://,

mailto: is displayed in the URLColor and underlined

URLShowInText When true, any hyperlink of the type http://, http://, ftp://, nntp://, mailto:

that occurs in the text of a cell is displayed in the URLColor and underlined and

will act as a hyperlink when clicked. This means that if the cell content is “Visit

http://www.tmssoftware.com for details”, the hyperlink will be automatically

underlined without any need to write HTML <A> tags. This is different from using

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TMS SOFTWARE

TADVSTRINGGRID

DEVELOPERS GUIDE

95 | Page

just URLShow = true, where the entire cell text is treated as hyperlink or not.

WordWrap

When true, cell text is wordwrapped. This can be dynamically set for individual

cells by using the event OnGetWordWrap. Note that when WordWrap is enabled,

text in the cell is always vertically top aligned. The Windows wordwrap text

drawing API can only display wordwrapped text top aligned.

Cell selection

By default, selected cells are displayed in the clHighLight background color and clHightLightText

font color. Set grid.ShowSelection = false if the grid should not display selected cells. Settings that

control display of selected cells are:

SelectionColor: TColor;

Sets the background color of selected cells

SelectionColorTo: TColor;

When different from clNone, sets the gradient end color of a

selected cell.

SelectionColorMixer: boolean;

When true, the color of a selected cell is X% of color value of the

cell and 100-X% of the selectioncolor. X is the

SelectionColorMixerFactor and defaults to 50.

SelectionColorMixerFactor:

integer;

Selects the ratio of the color mixer between cell color and

selection color.

SelectionMirrorColor: TColor;

When different from clNone, sets the bottom gradient start color

of a selected cell.

SelectionMirrorColorTo: TColor; When different from clNone, sets the bottom gradient end color

of a selected cell.

SelectionRectangle: Boolean;

When true, a wide border rectangle is displayed around selected

cells

SelectionResizer: Boolean;

When true, the selection rectangle is displayed with rectangular

grip in bottom right corner to resize the selection

SelectionRTFKeep: Boolean;

When true, RTF text colors are not affected by selection text

color in selected cells

SelectionTextColor: TColor;

Sets the text color of selected cells

ShowSelection: Boolean;

When true, selected cells are displayed in SelectionColor and

SelectionTextColor

The selection in the grid can be hidden temporarily by the method grid.HideSelection and unhidden

later with grid.UnHideSelection.

Note: by default, when the SelectionTextColor is set to a color different from clNone, the

SelectionTextColor has priority over the font color of the cell itself. This is to ensure that for the

combination SelectionColor/SelectionTextColor, the cell text is always guaranteed to be visible. If it

TMS SOFTWARE

TADVSTRINGGRID

DEVELOPERS GUIDE

96 | Page

is not desirable that the selection text color is different from the cell font color, set

grid.SelectionTextColor to clNone. With this setting, the cell text color will be always used.

Advanced topic: Smart cell resizing

With SelectionResizer and SelectionRectangle set true, the selection can be resized by dragging the

bottom left corner. If the property grid.Navigation.AllowSmartClipboard is set true as well, the

resizing of the selection will cause the smart clipboard operation to try to fill the new selection

based on the information found in the first selected cells. It will try to guess the data format of the

cells of the original selection and try to find the delta between 2 or more cells of the original

selection and apply this delta for completion for the new selection.

Example: original selection

Resized to new selection

Hilighting and marking errors in cells

With the <HI> tag and <E> tag an arbitrary part of the text can be highlighted or underlined with

error lines. TAdvStringGrid has a range of methods that allow to automatically highlight or

unhighlight text in cells or mark or unmark text in cells. The following set of methods is available

for this:

function HilightText(DoCase: Boolean; S,Text: string):string;

function UnHilightText(S:string):string;

procedure HilightInCell(DoCase: Boolean; Col,Row: Integer; HiText: string);

procedure HilightInCol(DoFixed,DoCase: Boolean; Col: Integer; HiText:

string);

procedure HilightInRow(DoFixed,DoCase: Boolean; Row: Integer; HiText:

string);

procedure HilightInGrid(DoFixed,DoCase: Boolean; HiText: string);

procedure UnHilightInCell(Col,Row: Integer);

procedure UnHilightInCol(DoFixed: Boolean; Col: Integer);

procedure UnHilightInRow(DoFixed: Boolean; Row: Integer);

procedure UnHilightInGrid(DoFixed: Boolean);

function MarkText(DoCase: Boolean; S,Text: string):string;

TMS SOFTWARE

TADVSTRINGGRID

DEVELOPERS GUIDE

97 | Page

function UnMarkText(S:string):string;

procedure MarkInCell(DoCase: Boolean; Col,Row: Integer; HiText: string);

procedure MarkInCol(DoFixed,DoCase: Boolean; Col: Integer; HiText: string);

procedure MarkInRow(DoFixed,DoCase: Boolean; Row: Integer; HiText: string);

procedure MarkInGrid(DoFixed,DoCase: Boolean; HiText: string);

procedure UnMarkInCell(Col,Row: Integer);

procedure UnMarkInCol(DoFixed: Boolean; Col: Integer);

procedure UnMarkInRow(DoFixed: Boolean; Row: Integer);

procedure UnMarkInGrid(DoFixed: Boolean);

procedure RemoveMarker(ACol,ARow: Integer);

procedure RemoveAllMarkers;

Example: highlighting TMS in a cell

Grid.Cells[2,3] := ‘This is TMS software’;

Grid.HilightInCell(False,2,3,’TMS’);

This will display the cell as :

This is TMS software

Later the highlighting can be removed by calling grid.UnHiLightInGrid(False). This will remove

highlighting in any cell of the grid.

Trimming cells

Following functions are defined to perform trimming of values in a rectangle of grid cells, in a row,

in a column or in the entire grid:

procedure TrimRect(ACol1,ARow1,ACol2,ARow2: Integer);

procedure TrimCol(ACol: Integer);

procedure TrimRow(ARow: Integer);

procedure TrimAll;

Automatic sizing and numbering of columns and rows

TAdvStringGrid has several built-in methods to let the grid automatically adapt the column width or

row height to fit the text of cells.

Methods:

procedure AutoSizeCol(Col: integer);

Adapts the width of column Col to have all text in cells in this column fit.

procedure AutoSizeColumns(DoFixedCols: Boolean; Padding: integer);

Adapts the width of all columns (including fixed columns when DoFixedCols = true) to the width of

the text. An additional parameter Padding can be used to add some extra padding width to the

column’s width.

procedure AutoGrowCol(Col: integer);

TMS SOFTWARE

TADVSTRINGGRID

DEVELOPERS GUIDE

98 | Page

Adapts the width of column Col to have all text in cells in this column fit. The width of the column

can only increase when the text is too large, it will never shrink.

procedure AutoGrowColumns(DoFixedCols: Boolean; Padding: integer);

Adapts the width of all columns (including fixed columns when DoFixedCols = true) to the width of

the text. An additional parameter Padding can be used to add some extra padding width to the

column’s width. Equivalent to AutoGrowCol(), the width of the column can only increase when the

text is larger than the column width. The width will never decrease though when calling

AutoGrowColumns().

procedure AutoFitColumns(DoFixedCols: Boolean = true);

Changes the width of all columns proportionally to ensure all columns fill the entire width of the

grid. When DoFixedCols = false, the size of the fixed columns is not affected, only the size of the

normal columns is proportionally changed.

procedure AutoSizeRow(Row: integer);

Adapts the height of row Row to have all text in cells in this row fit.

procedure AutoSizeRows(DoFixedRows: Boolean; Padding: integer);

Adapts the height of all rows (including fixed rows when DoFixedRows = true) to the height of the

text. An additional parameter Padding can be used to add some extra padding width to the row’s

height.

procedure AutoNumberCol(Col: integer);

Fills the rows of a column with a series of numbers, incrementing from first row to total number of

rows. The grid public property AutoNumberOffset sets the value of the first row and the property

AutoNumberStart sets the first row index from where auto numbering should be applied.

procedure AutoNumberRow(Row: integer);

Fills the columns of a row with a series of numbers, incrementing from first column to total number

of columns. The grid public property AutoNumberOffset sets the value of the first column and the

property AutoNumberStart sets the first column index from where auto numbering should be

applied.

TMS SOFTWARE

TADVSTRINGGRID

DEVELOPERS GUIDE

99 | Page

TAdvStringGrid row hover buttons

With TAdvStringGrid it is possible to have a series of buttons automatically hover over the active

row of the grid. This customizable series of buttons can be used for some quick actions such as

clearing the row, inserting preset values etc…

The feature is exposed via grid.HoverButtons that has following properties:

grid.HoverButtons.Buttons: THoverButtonsCollection : collection of buttons

grid.HoverButtons.Column: integer : sets the column where the hover buttons should appear

grid.HoverButtons.Enabled: Boolean : set true to enable this feature

grid.HoverButtons.Position: position where the buttons should be displayed in the selection column

grid.HoverButtons.Rows: selects whether the hover buttons appear for normal rows only or both

normal & fixed rows.

A button on the hover buttons can have:

THoverButton.Caption: string : caption of the button

THoverButton.Enabled: Boolean : enabled state of the button

THoverButton.Flat: Boolean : selects between regular & flat button style

THoverButton.Hint: string : sets the hint for the button

THoverButton.ImageIndex: integer : sets the image from the grid.GridImages imagelist to use on the

button.

THoverButton.Picture: TPicture : sets a picture for use on the hover button

THoverButton.Tag: integer

Below is a sample where 3 hover buttons were added via grid.HoverButtons.Buttons and a PNG

image was set on each button. The grid.HoverButtons.Column was set to column 4, so the

hoverbuttons appear on the row where the mouse hovers on the left side of column 4.

When a hover button is clicked, the event OnHoverButtonClick is triggered, returning the row where

the action happened as well as the button that triggered it.

TMS SOFTWARE

TADVSTRINGGRID

DEVELOPERS GUIDE

100 | Page

TAdvStringGrid nodes

A multi-level hierarchy row expand/contract functionality can be added to TAdvStringGrid through

Nodes. Working with nodes involves three topics:



putting nodes in the grid



node appearance



reacting to node click events

Following functions are available to work with nodes in the grid:

procedure AddNode(aRow,Span:integer);

Adds a node in the grid spanning Span rows

procedure RemoveNode(aRow:integer);

Removes a node at row aRow.

function IsNode(aRow:integer):boolean;

Returns true if the row contains a node

function GetNodeState(ARow:integer):boolean;

Returns true if the node is in contracted state

procedure SetNodeState(ARow:integer;value:boolean);

Sets the state of node

procedure ExpandNode(ARow:integer);

Expands the node at row ARow.

procedure ContractNode(ARow:integer);

Contracts the node at row ARow

procedure ExpandAll;

Expands all nodes

procedure ContractAll;

Contracts all nodes

function GetNodeSpan(aRow: Integer): Integer:

Retrieves the number of rows a node spans

function GetNodeLevel(aRow: Integer): Integer;

Retrieves the depth level of a node

function GetParentRow(aRow: Integer): Integer;

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