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- Code of the indexed control
- Handling an indexed control directly (assignment, ...)
- Edit control or column in a Table control
- Column of Table control
- Notes: indexed and non-indexed columns
- Operating mode of the FileToScreen and ScreenToFile functions
- WLanguage properties and indexed controls
- WLanguage functions specific to the management of indexed controls
Programming an indexed control
Code of the indexed control All the indexed controls with the same name are associated with the same processes. For example, the initialization code of the indexed control named EDT_Edit1[1] is the same as the initialization code of the indexed control named EDT_Edit1[5]. Handling an indexed control directly (assignment, ...) Edit control or column in a Table control To manipulate an indexed control through programming, the index must be specified. For example: IndexedField[1] to manipulate the first indexed field. Column of Table control The columns of a Table field can be indexed: the Table field has several columns of the same name.. Each column is identified by its name and index. To retrieve the value of an indexed column in a Table control, the syntax is as follows: Value = <Column name>[<Row>, <Index>] To assign a value to an indexed column in a Table control, use the following syntax: <Column name>[<Row>, <Index>] = Value with: - <Nom Colonne> column name.
- <Ligne>: line number
- <Indice>: column index.
Example: A Table field contains an indexed column COL_Adresse.. Two columns are associated with Address. To handle these columns, use the following syntax:
COL_Address[1,2] = "3 main street"
COL_Address[5,1].BackgroundColor = LightGreen
COL_Address[4,2].BackgroundColor = LightGreen
Notes: indexed and non-indexed columns - For indexed columns:
<Column name>[Index n] returns the content of the column at index n for the current row. - For non-indexed columns:
<Column name>[Index n] returns the content of the column on row n. - <Column name>[<Row>][<Index>] is equivalent to <Column name>[<Row>,<Index>]
Operating mode of the FileToScreen and ScreenToFile functions FileToScreen and ScreenToFile automatically manage the link between indexed controls and array items. The indexed control must be associated with one of the elements of the array item. WLanguage properties and indexed controls The following syntax is used to access a property of an indexed control: <ControlName>[<Index>].<Property> <Column name>[<Type of calculation>].<Property> - <ControlName> is the name of the control
- <Index> is the index of the control (the index is set to 1 by default)
- <Property> is one of the properties proposed by WINDEV.
For an indexed control, <Control name>.<Property> only assigns a value to the control whose index is set to 1. All the properties available for edit controls and columns of Table controls can be used on indexed controls. The properties apply to each control and not to all the controls of the indexed control. WLanguage functions specific to the management of indexed controls The following functions are used to manage indexed controls: | | | CurrentColumn | Returns the index of the current indexed column in a Table control based on a data file or in a Table control populated programmatically. | | CurrentIndex | Returns the index of the current control. | | NextIndex | Returns the number of the next row displayed in the current Table control.
Returns the index of the next indexed control. | | ScreenFirst | Defines the next control that will be in edit in the current window. |
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