Column Object (ExTree) | Exontrol Docs

Column object

The ExTree component supports multiple columns. The Columns object contains a collection of Column objects. By default, the control doesn't add any default column, so the user has to add at least one column, before inserting any new items. The Column object holds information about a control's column like: Alignment, Caption, Position and so on. The Column object supports the following properties and methods:

		Name	Description
		Alignment	Retrieves or sets the alignment of the caption into the column's header.
		AllowDragging	Retrieves or sets a value indicating whether the user will be able to drag the column.
		AllowSizing	Retrieves or sets a value indicating whether the user will be able to change the width of the visible columns by dragging.
		AllowSort	Returns or sets a value that indicates whether the user can sort the column by clicking the column's header.
		AutoSearch	Specifies the kind of searching while user types characters within the columns.
		AutoWidth	Computes the column's width required to fit the entire column's content.
		Caption	Retrieves or sets the text displayed to the column's header.
		ComputedField	Retrieves or sets a value that indicates the formula of the computed column.
		CustomFilter	Retrieves or sets a value that indicates the list of custom filters.
		Data	Associates an extra data to the column.
		Def	Retrieves or sets a value that indicates the default value of given properties for all cells in the same column.
		DefaultSortOrder	Specifies whether the default sort order is ascending or descending.
		DisplayExpandButton	Shows or hides the expanding/collapsing button in the column's header.
		DisplayFilterButton	Specifies whether the column's header displays the filter button.
		DisplayFilterDate	Specifies whether the drop down filter window displays a date selector to specify the interval dates to filter for.
		DisplayFilterPattern	Specifies whether the dropdown filter bar contains a textbox for editing the filter as pattern.
		DisplaySortIcon	Retrieves or sets a value indicating whether the sort icon is visible on column's header, while the column is sorted.
		Enabled	Returns or sets a value that determines whether a column's header can respond to user-generated events.
		ExpandColumns	Specifies the list of columns to be shown when the current column is expanded.
		Expanded	Expands or collapses the column.
		Filter	Specifies the column's filter when filter type is exFilter, exPattern or exDate.
		FilterBarDropDownWidth	Specifies the width of the drop down filter window proportionally with the width of the column.
		FilterList	Specifies whether the drop down filter list includes visible or all items.
		FilterOnType	Filters the column as user types characters in the drop down filter window.
		FilterType	Specifies the column's filter type.
		FireFormatColumn	Retrieves or sets a value that indicates whether the control fires FormatColumn to format the caption of a cell hosted by column.
		FormatColumn	Specifies the format to display the cells in the column.
		HeaderAlignment	Specifies the alignment of the column's caption.
		HeaderBold	Retrieves or sets a value that indicates whether the column's caption should appear in bold.
		HeaderImage	Retrieves or sets a value indicating the index of an Image in the Images collection, which is displayed to the column's header.
		HeaderImageAlignment	Retrieves or sets the alignment of the image into the column's header.
		HeaderItalic	Retrieves or sets a value that indicates whether the column's caption should appear in italic.
		HeaderStrikeOut	Retrieves or sets a value that indicates whether the column's caption should appear in strikeout.
		HeaderUnderline	Retrieves or sets a value that indicates whether the column's caption should appear in underline..
		HeaderVertical	Specifies whether the column's header is vertically displayed.
		HTMLCaption	Retrieves or sets the text in HTML format displayed in the column's header.
		Index	Returns a value that represents the index of an object in a collection.
		Key	Retrieves or sets the column's key.
		LevelKey	Retrieves or sets a value that indicates the key of the column's level.
		MaxWidthAutoResize	Retrieves or sets a value that indicates the maximum column's width when the WidthAutoResize is True.
		MinWidthAutoResize	Retrieves or sets a value that indicates the minimum column's width when the WidthAutoResize is True.
		PartialCheck	Specifies whether the column supports partial check feature.
		Position	Retrieves or sets a value that indicates the position of the column in the header bar area.
		ShowFilter	Shows the column's filter window.
		SortOrder	Specifies the column's sort order.
		SortPosition	Returns or sets a value that indicates the position of the column in the sorting columns collection.
		SortType	Returns or sets a value that indicates the way a control sorts the values for a column.
		ToolTip	Specifies the column's tooltip description.
		Visible	Retrieves or sets a value indicating whether the column is visible or hidden.
		Width	Retrieves or sets the column's width.
		WidthAutoResize	Retrieves or sets a value that indicates whether the column is automatically resized according to the width of the contents within the column.