Difference between revisions of "Grid"
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− | + | Note: property, method and event names should be referred to in lowercase in case-sensitive scripting languages. | |
− | This class supports the | + | ====Description==== |
+ | Shown below in a standalone [[Form]]. Click the image to see in a [[Custom_Sections_and_Gadgets|Custom Section]] in a Lianja [[Page Attributes|Page]]. | ||
+ | |||
+ | [[{{ns:file}}:grid_column.png|link={{filepath:grid_column_header_cs.png}}|Grid, Column]] | ||
+ | |||
+ | A grid is a container object that displays data in rows and columns, and is similar in appearance to a Browse window. A grid is also a container object that contains [[Column]] objects. A column can contain a [[Header]] object and controls. Because a grid and its columns, headers, and controls each have their own set of properties, you have complete control over each element of the grid. | ||
+ | |||
+ | ====Properties==== | ||
+ | This class supports the [[:Category:Common_Properties|Common Properties]] plus the following: | ||
− | {| class="wikitable" | + | {| class="wikitable" width="100%" |
!width="20%"|Property | !width="20%"|Property | ||
!Access (R/RW) | !Access (R/RW) | ||
Line 9: | Line 17: | ||
!width="50%"|Description | !width="50%"|Description | ||
|- | |- | ||
− | | | + | |ActionBar |
|RW | |RW | ||
− | | | + | |Boolean |
− | | | + | |actionBar visibility |
|- | |- | ||
− | | | + | |ActiveColumn |
|RW | |RW | ||
− | | | + | |Numeric |
− | | | + | |Currently selected [[Column|column]] |
|- | |- | ||
− | | | + | |ActiveRow |
|RW | |RW | ||
− | | | + | |Numeric |
− | | | + | |Currently selected row |
|- | |- | ||
− | | | + | |valign="top"|AlternatingRowColors |
− | |RW | + | |valign="top"|RW |
− | | | + | |valign="top"|Boolean |
− | | | + | |valign="top"|Whether rows have alternating background colors |
|- | |- | ||
− | | | + | |valign="top"|AutoPagination |
+ | |valign="top"|RW | ||
+ | |valign="top"|Boolean | ||
+ | |valign="top"|Whether grids are paginated over the table size specified in AutoPaginationSize, default is True | ||
+ | |- | ||
+ | |valign="top"|AutoPaginationSize | ||
+ | |valign="top"|RW | ||
+ | |valign="top"|Numeric | ||
+ | |valign="top"|Table size (number of records) over which AutoPagination applies, default is 1000 | ||
+ | |- | ||
+ | |AutoResizeColumns | ||
|RW | |RW | ||
− | | | + | |Boolean |
− | | | + | |Whether grid auto resizes to the maximum width when data is loaded |
|- | |- | ||
− | | | + | |ColumnCount |
|RW | |RW | ||
− | | | + | |Numeric |
− | | | + | |Number of columns |
+ | |- | ||
+ | |valign="top"|ContextMenu | ||
+ | |valign="top"|RW | ||
+ | |valign="top"|Character | ||
+ | |valign="top"|A comma separated string containing menu items, e.g. "Apples,Pears,Bananas". This works in conjunction with the rightclick event when the grid is Readonly. When the grid is rightclicked, the context menu is displayed. When a menu item is selected, the text for the menu item is passed to the rightclick delegate. Note: for editable grids, the rightclick delegate is only called when the right click happens in the top left 'button' of the grid, not in the body of the grid. | ||
|- | |- | ||
− | | | + | |Filter |
|RW | |RW | ||
− | | | + | |Character |
− | | | + | |Filter expression to restrict data included in the grid |
|- | |- | ||
− | | | + | |GridLineColor |
|RW | |RW | ||
− | | | + | |Numeric |
− | | | + | |Color of grid lines |
|- | |- | ||
− | | | + | |GridLines |
|RW | |RW | ||
− | | | + | |Boolean |
− | | | + | |Whether grid lines are displayed |
|- | |- | ||
− | | | + | |HeaderHeight |
|RW | |RW | ||
− | | | + | |Numeric |
− | | | + | |Column header height in pixels |
|- | |- | ||
− | | | + | |valign="top"|KineticScrolling |
− | | | + | |valign="top"|RW |
− | | | + | |valign="top"|Boolean |
− | | | + | |valign="top"|Whether kinetic scrolling is enabled, default is False. With kinetic scrolling, the user can flick in a given direction and it will continue to scroll in this direction until it is stopped either by the user or by friction. Setting KineticScrolling to true provides touch scrolling on touch aware devices and left mouse button pressed and moved scrolling on non-touch aware devices. |
|- | |- | ||
− | | | + | |valign="top"|Pagination |
− | | | + | |valign="top"|RW |
− | | | + | |valign="top"|Boolean |
− | | | + | |valign="top"|Whether grids are paginated regardless of table size, default is False |
|- | |- | ||
− | | | + | |Picture |
|RW | |RW | ||
− | | | + | |Character |
− | | | + | |Filename of background image |
|- | |- | ||
− | | | + | |Readonly |
|RW | |RW | ||
− | | | + | |Boolean |
− | | | + | |Whether grid is readonly |
|- | |- | ||
− | | | + | |Recno |
− | | | + | |R |
− | | | + | |Numeric |
− | | | + | |Current record number |
|- | |- | ||
− | | | + | |valign="top"|RecordMark |
− | |RW | + | |valign="top"|RW |
− | | | + | |valign="top"|Numeric |
− | | | + | |valign="top"|Whether record number column is displayed: 0 (False), 1 (True). This should be set before populating the grid and cannot be toggled. |
|- | |- | ||
− | | | + | |valign="top"|RecordSource |
− | |RW | + | |valign="top"|RW |
− | | | + | |valign="top"|Character |
− | | | + | |valign="top"|Source of data to which the grid is bound |
|- | |- | ||
− | | | + | |valign="top"|RecordSourceType |
+ | |valign="top"|RW | ||
+ | |valign="top"|Numeric | ||
+ | |valign="top"|Data source type: 0 = table, 1 = alias, 4 = SQL statement | ||
+ | |- | ||
+ | |valign="top"|RelativeColumn | ||
+ | |valign="top"|R | ||
+ | |valign="top"|Numeric | ||
+ | |valign="top"|Currently selected column relative to the grid display | ||
+ | |- | ||
+ | |valign="top"|RelativeRow | ||
+ | |valign="top"|R | ||
+ | |valign="top"|Numeric | ||
+ | |valign="top"|Currently selected row relative to the grid display | ||
+ | |- | ||
+ | |valign="top"|RowColChange | ||
+ | |valign="top"|RW | ||
+ | |valign="top"|Numeric | ||
+ | |valign="top"|Type of cell movement made: 0 = no change, 1 = row change, 2 = column change, 3 = row and column change | ||
+ | |- | ||
+ | |valign="top"|RowColChangeClickEnabled | ||
+ | |valign="top"|RW | ||
+ | |valign="top"|Numeric | ||
+ | |valign="top"|Enable or disable click being called on a row or column change: 0 = disabled, 1 = enabled. From v6.0.3. | ||
+ | |- | ||
+ | |RowCount | ||
|RW | |RW | ||
− | | | + | |Numeric |
− | | | + | |Number of rows |
|- | |- | ||
− | | | + | |RowHeight |
|RW | |RW | ||
− | | | + | |Numeric |
− | | | + | |Row height in pixels |
|- | |- | ||
− | | | + | |Rowid |
+ | |R | ||
+ | |Numeric | ||
+ | |Current record number | ||
+ | |- | ||
+ | |valign="top"|RowSource | ||
+ | |valign="top"|RW | ||
+ | |valign="top"|Character | ||
+ | |valign="top"|Source of data to which the grid is bound | ||
+ | |- | ||
+ | |valign="top"|RowSourceType | ||
+ | |valign="top"|RW | ||
+ | |valign="top"|Numeric | ||
+ | |valign="top"|Data source type: 1 = table, 2 = alias, 3 = SQL statement | ||
+ | |- | ||
+ | |valign="top"|Scrollbars | ||
+ | |valign="top"|RW | ||
+ | |valign="top"|Numeric | ||
+ | |valign="top"|Scrollbars displayed: 0 = none, 1 = horizontal, 2 = vertical | ||
+ | |- | ||
+ | |StretchLastColumn | ||
|RW | |RW | ||
− | | | + | |Boolean |
− | | | + | |Whether the last grid column is stretched to fill the available space |
|- | |- | ||
− | | | + | |valign="top"|ViewMode |
+ | |valign="top"|RW | ||
+ | |valign="top"|Numeric | ||
+ | |valign="top"|View mode for split grids: 0 = grid view, 1 = form view, 2 = split view | ||
+ | |- | ||
+ | |WordWrap | ||
|RW | |RW | ||
− | | | + | |Boolean |
− | | | + | |Whether text is word-wrapped |
|- | |- | ||
|} | |} | ||
====Methods==== | ====Methods==== | ||
+ | This class supports the [[:Category:Common_Methods|Common Methods]] plus the following: | ||
− | + | {| class="wikitable" width="100%" | |
− | + | ||
− | {| class="wikitable" | + | |
!width="20%"|Method | !width="20%"|Method | ||
!Args | !Args | ||
!width="50%"|Description | !width="50%"|Description | ||
|- | |- | ||
− | | | + | |valign="top"|ActivateCell |
− | | | + | |valign="top"|row as Numeric, column as Numeric |
− | | | + | |valign="top"|Select the cell at the specified row and column position |
|- | |- | ||
− | | | + | |valign="top"|Add |
− | | | + | |valign="top"|None |
− | | | + | |valign="top"|Add a new record |
|- | |- | ||
− | | | + | |valign="top"|AddColumn |
− | | | + | |valign="top"|column as Numeric |
− | | | + | |valign="top"|Add a column at the specified column position |
|- | |- | ||
− | | | + | |valign="top"|AddItem |
− | | | + | |valign="top"|data as Character |
− | | | + | |valign="top"|Add an item |
|- | |- | ||
− | | | + | |valign="top"|AddItems |
− | | | + | |valign="top"|selectstatement as Character | commalist as Character | pipelist as Character | items as Array [,headers as Array[, headerwidths as Array]] |
− | | | + | |valign="top"|Add items based on an SQL SELECT query, a comma-separated list, a pipe-separated list or an array, optionally specifying a second array with column header text and a third with column header widths |
|- | |- | ||
− | | | + | |valign="top"|AddObject |
− | | | + | |valign="top"|existing as Object | newobject as Character, class as Character |
− | | | + | |valign="top"|Add an existing object or a new object, in which case the object's class must also be specified and optionally its caption |
|- | |- | ||
− | |Autofit | + | |valign="top"|Autofit |
− | | | + | |valign="top"|None |
− | | | + | |valign="top"|Resize the columns to fit the grid |
|- | |- | ||
− | | | + | |valign="top"|Cancel |
− | | | + | |valign="top"|None |
− | | | + | |valign="top"|Cancel data changes |
|- | |- | ||
− | | | + | |valign="top"|Clear |
− | | | + | |valign="top"|None |
− | | | + | |valign="top"|Clear the grid |
|- | |- | ||
− | | | + | |valign="top"|Columns |
− | | | + | |valign="top"|column as Numeric |
− | | | + | |valign="top"|Return an object reference to the specified [[Column]] |
|- | |- | ||
− | | | + | |valign="top"|Delete |
− | | | + | |valign="top"|None |
− | | | + | |valign="top"|Delete the current record |
|- | |- | ||
− | | | + | |valign="top"|DoScroll |
− | | | + | |valign="top"|scroll as Numeric |
− | | | + | |valign="top"|Scroll: 0 = up, 1 = down, 2 = page up, 3 = page down, 4 = left, 5 = right, 6 = page left, 7 = page right, 8 = top, 9 = bottom |
|- | |- | ||
− | | | + | |valign="top"|First |
− | | | + | |valign="top"|None |
− | | | + | |valign="top"|Move to the first data record |
|- | |- | ||
− | |Search | + | |valign="top"|GetItemColor |
− | | | + | |valign="top"|row as Numeric, column as Numeric |
− | | | + | |valign="top"|Return a color pair bg,fg for the specified cell. From v5.3. |
+ | |- | ||
+ | |valign="top"|GetRowColor | ||
+ | |valign="top"|row as Numeric | ||
+ | |valign="top"|Return a | separates list of color pairs bg,fg for the specified row. From v5.3. | ||
+ | |- | ||
+ | |valign="top"|Goto | ||
+ | |valign="top"|recordnumber as Numeric [, scroll as Numeric] | ||
+ | |valign="top"|Go to the specified record number.<br>Optionally specify the scroll position:<br>0 = scroll to ensure that the item is visible<br>1 = scroll to position the item at the top of the viewport<br>2 = scroll to position the item at the bottom of the viewport<br>3 = scroll to position the item at the center of the viewport.<br>Scroll argument from v5.5. | ||
+ | |- | ||
+ | |valign="top"|HideAllRows | ||
+ | |valign="top"|None | ||
+ | |valign="top"|Hide all rows. From v6.0. | ||
+ | |- | ||
+ | |valign="top"|HideRow | ||
+ | |valign="top"|row as Numeric | ||
+ | |valign="top"|Hide the specified row. Rows start from 1. From v6.0. | ||
+ | |- | ||
+ | |valign="top"|Item | ||
+ | |valign="top"|row as Numeric, column as Numeric [, value as Expression] | ||
+ | |valign="top"|Return the item text from the specified cell.<br>The optional value can be specified to update the item text. | ||
+ | |- | ||
+ | |valign="top"|Last | ||
+ | |valign="top"|None | ||
+ | |valign="top"|Move to the last data record. For paginated grids, move to the last record on the last page. | ||
+ | |- | ||
+ | |valign="top"|Next | ||
+ | |valign="top"|None | ||
+ | |valign="top"|Move to the next page | ||
+ | |- | ||
+ | |valign="top"|Previous | ||
+ | |valign="top"|None | ||
+ | |valign="top"|Move to the previous page | ||
+ | |- | ||
+ | |valign="top"|RemoveColumn | ||
+ | |valign="top"|column as Numeric | ||
+ | |valign="top"|Remove a column at the specified column position | ||
+ | |- | ||
+ | |valign="top"|RemoveObject | ||
+ | |valign="top"|existing as Object | ||
+ | |valign="top"|Remove the specified object | ||
+ | |- | ||
+ | |valign="top"|Save | ||
+ | |valign="top"|None | ||
+ | |valign="top"|Save data changes | ||
+ | |- | ||
+ | |valign="top"|Search | ||
+ | |valign="top"|searchstring as Character | ||
+ | |valign="top"|Search for searchstring in the currently selected column | ||
+ | |- | ||
+ | |valign="top"|SetItemColor | ||
+ | |valign="top"|row as Numeric, column as Numeric, foregroundcolor as Character, backgroundcolor as Character | ||
+ | |valign="top"|Set the foreground and background colors for the specified cell. (From v4.1). | ||
+ | |- | ||
+ | |valign="top"|SetRowColor | ||
+ | |valign="top"|row as Numeric, foregroundcolor as Character, backgroundcolor as Character | ||
+ | |valign="top"|Set the foreground and background colors for the specified row. (From v4.1). | ||
+ | |- | ||
+ | |valign="top"|ShowAllRows | ||
+ | |valign="top"|None | ||
+ | |valign="top"|Show all rows. From v6.0. | ||
+ | |- | ||
+ | |valign="top"|ShowRow | ||
+ | |valign="top"|row as Numeric | ||
+ | |valign="top"|Show the specified row. Rows start from 1. From v6.0. | ||
+ | |- | ||
+ | |valign="top"|Sort | ||
+ | |valign="top"|column as Numeric, direction as Numeric | ||
+ | |valign="top"|Sort data on the specified column. Data is sorted in descending order if direction < 0. <br>Note: Column numbers start from 0. | ||
|- | |- | ||
|} | |} | ||
====Events==== | ====Events==== | ||
+ | This class supports the [[:Category:Common_Events|Common Events]] plus the following: | ||
− | + | {| class="wikitable" width="100%" | |
− | + | ||
− | {| class="wikitable" | + | |
!width="20%"|Event | !width="20%"|Event | ||
!Args | !Args | ||
!width="50%"|Description | !width="50%"|Description | ||
+ | |- | ||
+ | |valign="top"|afterRowColChange | ||
+ | |valign="top"|row as Numeric | ||
+ | |valign="top"|Occurs after moving column in the same row. Row numbers start from 0. | ||
+ | |- | ||
+ | |valign="top"|beforeRowColChange | ||
+ | |valign="top"|column as Numeric | ||
+ | |valign="top"|Occurs after data has changed and before the valid event. Column numbers start from 0. | ||
+ | |- | ||
+ | |valign="top"|dragDrop | ||
+ | |valign="top"|source as Object, x as Numeric, y as Numeric, state as Numeric | ||
+ | |valign="top"|Occurs when an object is dropped into the grid | ||
+ | |- | ||
+ | |valign="top"|dragOver | ||
+ | |valign="top"|source as Object, x as Numeric, y as Numeric, state as Numeric | ||
+ | |valign="top"|Occurs when an object is dragged over the grid | ||
+ | |- | ||
+ | |valign="top"|interactiveChange | ||
+ | |valign="top"|None | ||
+ | |valign="top"|Occurs after data has been changed interactively and after the valid event | ||
|- | |- | ||
|} | |} | ||
+ | |||
+ | [[Category:Documentation]] | ||
+ | [[Category:Framework Classes]] |
Latest revision as of 07:12, 16 April 2021
Note: property, method and event names should be referred to in lowercase in case-sensitive scripting languages.
Contents
Description
Shown below in a standalone Form. Click the image to see in a Custom Section in a Lianja Page.
A grid is a container object that displays data in rows and columns, and is similar in appearance to a Browse window. A grid is also a container object that contains Column objects. A column can contain a Header object and controls. Because a grid and its columns, headers, and controls each have their own set of properties, you have complete control over each element of the grid.
Properties
This class supports the Common Properties plus the following:
Property | Access (R/RW) | Value | Description |
---|---|---|---|
ActionBar | RW | Boolean | actionBar visibility |
ActiveColumn | RW | Numeric | Currently selected column |
ActiveRow | RW | Numeric | Currently selected row |
AlternatingRowColors | RW | Boolean | Whether rows have alternating background colors |
AutoPagination | RW | Boolean | Whether grids are paginated over the table size specified in AutoPaginationSize, default is True |
AutoPaginationSize | RW | Numeric | Table size (number of records) over which AutoPagination applies, default is 1000 |
AutoResizeColumns | RW | Boolean | Whether grid auto resizes to the maximum width when data is loaded |
ColumnCount | RW | Numeric | Number of columns |
ContextMenu | RW | Character | A comma separated string containing menu items, e.g. "Apples,Pears,Bananas". This works in conjunction with the rightclick event when the grid is Readonly. When the grid is rightclicked, the context menu is displayed. When a menu item is selected, the text for the menu item is passed to the rightclick delegate. Note: for editable grids, the rightclick delegate is only called when the right click happens in the top left 'button' of the grid, not in the body of the grid. |
Filter | RW | Character | Filter expression to restrict data included in the grid |
GridLineColor | RW | Numeric | Color of grid lines |
GridLines | RW | Boolean | Whether grid lines are displayed |
HeaderHeight | RW | Numeric | Column header height in pixels |
KineticScrolling | RW | Boolean | Whether kinetic scrolling is enabled, default is False. With kinetic scrolling, the user can flick in a given direction and it will continue to scroll in this direction until it is stopped either by the user or by friction. Setting KineticScrolling to true provides touch scrolling on touch aware devices and left mouse button pressed and moved scrolling on non-touch aware devices. |
Pagination | RW | Boolean | Whether grids are paginated regardless of table size, default is False |
Picture | RW | Character | Filename of background image |
Readonly | RW | Boolean | Whether grid is readonly |
Recno | R | Numeric | Current record number |
RecordMark | RW | Numeric | Whether record number column is displayed: 0 (False), 1 (True). This should be set before populating the grid and cannot be toggled. |
RecordSource | RW | Character | Source of data to which the grid is bound |
RecordSourceType | RW | Numeric | Data source type: 0 = table, 1 = alias, 4 = SQL statement |
RelativeColumn | R | Numeric | Currently selected column relative to the grid display |
RelativeRow | R | Numeric | Currently selected row relative to the grid display |
RowColChange | RW | Numeric | Type of cell movement made: 0 = no change, 1 = row change, 2 = column change, 3 = row and column change |
RowColChangeClickEnabled | RW | Numeric | Enable or disable click being called on a row or column change: 0 = disabled, 1 = enabled. From v6.0.3. |
RowCount | RW | Numeric | Number of rows |
RowHeight | RW | Numeric | Row height in pixels |
Rowid | R | Numeric | Current record number |
RowSource | RW | Character | Source of data to which the grid is bound |
RowSourceType | RW | Numeric | Data source type: 1 = table, 2 = alias, 3 = SQL statement |
Scrollbars | RW | Numeric | Scrollbars displayed: 0 = none, 1 = horizontal, 2 = vertical |
StretchLastColumn | RW | Boolean | Whether the last grid column is stretched to fill the available space |
ViewMode | RW | Numeric | View mode for split grids: 0 = grid view, 1 = form view, 2 = split view |
WordWrap | RW | Boolean | Whether text is word-wrapped |
Methods
This class supports the Common Methods plus the following:
Method | Args | Description |
---|---|---|
ActivateCell | row as Numeric, column as Numeric | Select the cell at the specified row and column position |
Add | None | Add a new record |
AddColumn | column as Numeric | Add a column at the specified column position |
AddItem | data as Character | Add an item |
AddItems | selectstatement as Character | commalist as Character | pipelist as Character | items as Array [,headers as Array[, headerwidths as Array]] | Add items based on an SQL SELECT query, a comma-separated list, a pipe-separated list or an array, optionally specifying a second array with column header text and a third with column header widths |
AddObject | existing as Object | newobject as Character, class as Character | Add an existing object or a new object, in which case the object's class must also be specified and optionally its caption |
Autofit | None | Resize the columns to fit the grid |
Cancel | None | Cancel data changes |
Clear | None | Clear the grid |
Columns | column as Numeric | Return an object reference to the specified Column |
Delete | None | Delete the current record |
DoScroll | scroll as Numeric | Scroll: 0 = up, 1 = down, 2 = page up, 3 = page down, 4 = left, 5 = right, 6 = page left, 7 = page right, 8 = top, 9 = bottom |
First | None | Move to the first data record |
GetItemColor | row as Numeric, column as Numeric | Return a color pair bg,fg for the specified cell. From v5.3. |
GetRowColor | row as Numeric | Return a | separates list of color pairs bg,fg for the specified row. From v5.3. |
Goto | recordnumber as Numeric [, scroll as Numeric] | Go to the specified record number. Optionally specify the scroll position: 0 = scroll to ensure that the item is visible 1 = scroll to position the item at the top of the viewport 2 = scroll to position the item at the bottom of the viewport 3 = scroll to position the item at the center of the viewport. Scroll argument from v5.5. |
HideAllRows | None | Hide all rows. From v6.0. |
HideRow | row as Numeric | Hide the specified row. Rows start from 1. From v6.0. |
Item | row as Numeric, column as Numeric [, value as Expression] | Return the item text from the specified cell. The optional value can be specified to update the item text. |
Last | None | Move to the last data record. For paginated grids, move to the last record on the last page. |
Next | None | Move to the next page |
Previous | None | Move to the previous page |
RemoveColumn | column as Numeric | Remove a column at the specified column position |
RemoveObject | existing as Object | Remove the specified object |
Save | None | Save data changes |
Search | searchstring as Character | Search for searchstring in the currently selected column |
SetItemColor | row as Numeric, column as Numeric, foregroundcolor as Character, backgroundcolor as Character | Set the foreground and background colors for the specified cell. (From v4.1). |
SetRowColor | row as Numeric, foregroundcolor as Character, backgroundcolor as Character | Set the foreground and background colors for the specified row. (From v4.1). |
ShowAllRows | None | Show all rows. From v6.0. |
ShowRow | row as Numeric | Show the specified row. Rows start from 1. From v6.0. |
Sort | column as Numeric, direction as Numeric | Sort data on the specified column. Data is sorted in descending order if direction < 0. Note: Column numbers start from 0. |
Events
This class supports the Common Events plus the following:
Event | Args | Description |
---|---|---|
afterRowColChange | row as Numeric | Occurs after moving column in the same row. Row numbers start from 0. |
beforeRowColChange | column as Numeric | Occurs after data has changed and before the valid event. Column numbers start from 0. |
dragDrop | source as Object, x as Numeric, y as Numeric, state as Numeric | Occurs when an object is dropped into the grid |
dragOver | source as Object, x as Numeric, y as Numeric, state as Numeric | Occurs when an object is dragged over the grid |
interactiveChange | None | Occurs after data has been changed interactively and after the valid event |