ThgColumn is derived from ThgHeading and supports all of its properties. For more information on columns and headings see Columns.
Width : Integer
This property is only used internally to store a columns width while it is hidden, to obtain and change a columns width, use TStringGrids ColWidths property.
Cols : TStrings - obsolete
Rows : TStrings
These are both the same, although the former was misnamed, and will be removed in a future version. This property is used to store a columns contents while it is hidden.
Visible : Boolean
Setting this property shows or hides the corresponding column.
HeadingIndex : Integer
The Heading that corresponds to this column, if none set it to -1.
ReadOnly : Boolean
Whether the column is read only.
MaxTextLength : Integer
The longest string that can be typed in an editable cell.
ColumnHAlignment : TAlignment
The horizontal alignment of text in scrolling cells.
ColumnVAlignment : ThgVAlignment
ThgVAlignment = ( hgvaTop , hgvaCenter , hgvaBottom )
The vertical alignment of text in scrolling cells.
ColumnColor : TColor
The background color of scrolling cells.
ColumnFont : TFont
The font used for scrolling cells.
ColumnParentFont : Boolean
When set to True, the scrolling cells will use the grids font.
ColumnClipStyle : ThgClipStyle
ThgClipStyle = ( hgclpClip , hgclpEllipsis , hgclpWrap )
The clip style used when the text in a cell does not fit the dimensions of the cell
hgclpClip cuts the text off
hgclpEllipsis adds and ellipsis when the text does not fit in the cell and
hgcplWrap wraps the text into multiple lines
ColumnInnerBevel : TPanelBevel
ColumnOuterBevel : TPanelBevel
Bevels used for the scrolling cells, same as TPanel bevels.
ControlType : ThgControlTypes
ThgControlType = ( hgctlComboBox , hgctlButton )
ThgControlTypes = set of ThgControlType
This defines what kind of control(s) are displayed in the cell, when it is editable. Note that controls will not be visible unless goEditing is set to True in the Options.
If hgctlComboBox is included, the cells for this column will display a drop down list, if hgctlButton is included, and additional button will be added to the right of the combo box.
This allows you to have :
1) Simple edit control - ControlType = 
2) Editable combo box - ControlType = [ hgctlComboBox ]
3) Edit control with custom button - ControlType = [ hgctlButton ] and
4) Edit control with drop down list and custom button - ControlType = [ hgctlComboBox , hgctlButton ]
Items : TStrings
If ControlType includes hgctlComboBox, this is the list of items that will be shown in the drop down list.
AutoSuggest : Boolean
When ControlType includes hgctlComboBox, THyperGrid can suggest a string from the items property that partially matches what the user has typed, similar to an incremental search.
ComboMaxWidth : Boolean
If set to True, the drop down list will be made wide enough so that all items will be visible.
DropDownCount : Integer
The length of the drop down list for a combo box.
DropDownList : Boolean
If set to True, the user must select an item from the Items property, otherwise, he/she can type any string into the editable portion of the combo box. Similar to the Style property for TComboBox.
ButtonStyle : ThgButtonStyle
ThgButtonStyle = ( hgbstEllipsis , hgbstDropDown , hgbstCustom )
When ControlType includes hgctlButton, this property determines what is painted on the face of the button.
hgbstEllipsis will produce a button with three dots,
hgbstDropDown will produce a button with a down arrow, like the button on a combo box and
hgbstCustom will let you put a picture in the button, or leave it undecorated.
ButtonPicture : TPicture
This is a picture used for the custom button described above.
DrawButtonFace : Boolean
If set to true, the button face of the custom button is drawn to look much like a standard TButton. Optionally, by setting ButtonPicture to a valid TPicture and setting DrawButtonFace to False, only the picture will represent the button.
ButtonVAlignment : ThgVAlignment
ThgVAlignment = ( hgvaTop , hgvaCenter , hgvaBottom )
The vertical alignment of the custom button within the cell.
FormatType : ThgFormatType
ThgFormatType = ( hgfmtNone , hgfmtNumeric , hgfmtDateTime ,
The format string used to convert cell strings to display text.
hgfmtNone - no formatting is performed, cell text is displayed as is
hgfmtNumeric - the cell text is interpreted to be a number and formatted accordingly
hgfmtScientific - the cell text is interpreted to be a number and formatted accordingly
hgfmtDateTime - the cell text is interpreted as a date and/or time
See also OnDisplayText and OnConversionError
Decimals : Integer
If FormatType is numeric or scientific, this is the number of decimal places to show.
Prefix : string
This is an optional prefix that is shown in front of numeric types, such as "$"
ThousandsSeparator : Boolean
If set to True, windows thousands separator character is used in formatting numeric and scientific types.
If True, parenthesis are used to represent negative numbers in the numeric format type.
DateFormat : Integer
This is an index used to specify which date format to use when FormatType is set to hgfmtDateTime. The possibilities are as follows:
8 mmmm d, yyyy
9 ddd mmmm d, yyyy
10 dddd mmmm d, yyyy
Note that THyperGrid recognizes the order for month, day and year in your regional settings and shuffles each portion accordingly. In actuality, ThyperGrid has 33 formats, which are the 11 combinations above, but with the month, day and year order changed. THyperGrid uses the FormatDateTime function to accomplish all date/time formatting.
TimeFormat : Integer
If FormatType is set to hgfmtDateTime, the following time formats are available:
1 h:nn ampm
3 h:nn:ss ampm
Once again, FormatDateTime is used to accomplish all date/time formatting.