Hints and Tooltips

Cells Hints and Tooltips

Hints and Tooltips are special text hints, which are shown in small additional window (usually in a yellow color) while the mouse is above a specified place of grid. To show Hints and Tooltips in DBGridEh it is required to set ShowHint property to True. Hints usually contain additional information about a data in the cell. Tooltips usually contain a full-text of cell if it doesn’t fit in the cell. To show Tooltips in DBGridEh, use the Column.ToolTips, Column.Title.ToolTips, and Column.Footer.ToolTips properties. Besides, there are events Column.OnDataHintShow and Column.DBGridEh that allow to form Hints for cell dynamically. Use these events to set Text, Font, Color, Position or the other parameters of hint window for every cell of the grid. These events will be called only if Grid.ShowHint is set toTrue. During the calling event the grid is positioned on required record. So you can access fields values from dataset.

Hint and Tooltips are special text prompts that appear in a small additional window (usually yellow) when you hover over a specific area of the window. To enable Hint and Tooltips in DBGridEh you need to set DBGridEh.ShowHint property to True.
In the Hint, it is usually displayed additional information.
In Tooltips it is usually displayed the full text, which is not fully fit in the cell data and cropped when drawing.
To display Tooltips'ov DBGridEh use in the following properties properties:

property DBGridEh.ShowHint: Boolean

Show hints and Tooltips in the grid.

property Column.ToolTips: Boolean

Show tooltips in the column data cells.

property Column.Title.ToolTips: Boolean

Show tooltips in the column header.

property Column.Title.Hint: String

Hint text for the column header.

property Column.Footer.ToolTips: Boolean

Show tooltips in the column footer cell.

property DBGridEh.ColumnDefValues.ToolTips: Boolean

Show tooltips in the cells of all the data column grid.

property DBGridEh.ColumnDefValues.Title.ToolTips: Boolean

Show tooltips titles of all columns grid.

You can use the Column.OnDataHintShow or DBGridEh.OnDataHintShow event for dynamic formation of Hint or Tooltipos for data cells. Use these events to set the text font, color, position or other parameters of the info window (hint) for each cell in the column grid. These events will be called only if Grid.ShowHint set to True. At the time of the call event grid will set the current record in the dataset according to the number of grid lines, so that you can access data record. You can call the method for standard event processing DBGridEh.DefaultFillDataHintShowInfo.

You can use the Column.OnHintShowPause or DBGridEh.OnHintShowPause event to determine the delay before displaying the hint. In the event handler, you must set HintPause to the delay in milliseconds, that must elapse before displaying tips. If you set HintPause, it also set the Processed to True to avoid causing method for standard event processing.

Customize the SubtitleFilter filtering columns.

Use the sub-properties of property TDBGridEh.STFilter to customize the display area of the filter data by columns (called Subtitle Filter). This is usually a separate line just under the heading Grid. However, you can configure this field so that it appears in the header as a button drop-down list. In version 6, the opportunity to customize the color of cells dividing lines color, font and icon display mode drop-down list.
TDBGridEh.STFilter

InstantApply: Boolean

Defines if filter will be applied on chanching or clising of droped down list of filtered values (STFilter)

Local: Boolean

Grid does not use it, but object that perform filtering can determine whether it will filter locally in dataset or on the server (by adding filter expressions in SQL 'WHERE' clause)

Location: TSTFilterLocationEh

Defines the location STFilter. Under the title (stflUnderTitleFilterEh) or in the title (stflInTitleFilterEh). When in the title then STFilter doesn't support edit line to enter filter expression.

Visible: Boolean

Specifies whether the filter row is visible.

Color: TColor

Specifies the background color for the title cells.

Font: TFont

Controls the font in which the title cells displays its data.

ParentFont: Boolean

Determines where a control looks for its font information.

HorzLineColor: TColor

Color of the horizontal lines in the footer area.

RowHeight: Integer

Specifies the height of footer row in text lines.

RowLines: Integer

Specifies the height of footer row in text lines Full row height = height in pixels of RowLines + RowHeight.

VertLineColor: TColor

Color vertical lines in the footer area.

FilterButtonDrawTime: TDBGridFilterButtonDrawTimeEh

Specifies when it is to draw buttons for DropedDown filter list.