<Table>.Modify (Function)

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Table functions

Prefix syntax

Modify

Presentation

Example

Use conditions

Row characteristics

Table or TreeView Table control based on a data file: Modifications in the linked data file

Changes in a Table or TreeView Table control based on a data file

Modifying a record in a Table control based on a data file and releasing a Trigger

<Table>.Modify function and Modified property

See also

<Table>.Modify (Function)

In french: <Table>.Modifie

Modifies a row in:

a Table control,
a TreeView Table control,
a table displayed in a Combo Box control.

Remark: It is recommended to use <Table>.ModifyLine. <Table>.ModifyLine is used to add:

TAB characters into the columns,
all types of values into the columns.

Example

// Modify the "Paul" and "Moore" elements on the fifth
// row of the "TABLE_CustomerTable" control
TABLE_CustomerTable.Modify("Vince" + TAB + "Moore", 5)

// Modification in a column of a Table control
COL_NAME.Modify("Moore", 5)

Syntax

<Table control>.Modify(<Row> [, <Subscript>])

<Table control>: Control name

Name of the control to be used. This control can correspond to:
a Table control.
a TreeView Table control.
a Combo Box control with table.

<Row>: Character string

Modified row replacing the specified row. This row has the following format:

<Element of column 1> + TAB + <Element of column 2> + TAB + ...

<Subscript>: Optional integer

Index of the row to be modified. The value of first row is set to 1.
Index not specified or equal to -1 The current row is modified. This constant has no effect if no row is selected.
Index greater than the number of control rows A WLanguage error occurs.

Remarks

Use conditions

<Table>.Modify can be used on:

a Table or TreeView Table control based on a data file.
a Table or TreeView Table control populated programmatically.
a single-selection or multi-selection control.
Reminder: Multiselection is not available for classic Table controls.

This function is available for Table controls in Ajax mode, Table controls in classic mode and TreeView Table controls.

This function is available for Table controls in browser mode only.

The TreeView Table control is not available.

Table controls based on a data file are not available in edit mode. <Table>.Modify cannot be used on Table controls based on a data file.

Row characteristics

Each row element is changed into the type of the associated column.
If one of the elements corresponds to an empty string ("") or to 0 (depending on the column type), its value will be overwritten.
For example:

TABLE_CustomerTable.Modify("Moore" + TAB + "Peter" + TAB + "" + ...
TAB + "06/21/72")
If an element corresponds to the calculation result, the numeric expression must be enclosed in brackets.
For example:

TABLE_CalculationTable.Modify((53+29) + TAB + (83-21))
To modify the value of an element in a row, use the following syntax:

TableName.ColumnName[RowIndex] = NewValue

Table or TreeView Table control based on a data file: Modifications in the linked data file

If the cascading input is enabled, the data file linked to the control is automatically modified when the user goes to the next row.

If the cascading input is not enabled, the data file linked to the control is not modified. To write the record into the linked data file, <Table>.Save must be called after <Table>.Modify.

Remarks:

The "Cascading input" option can be selected in the "Details" tab of the control description window.
The cascading input is not available for Table controls with direct access to the data source. This option is only available for Table controls populated programmatically and with in-memory data source.
The cascading input is available for Ajax Table controls based on a data file only.

Changes in a Table or TreeView Table control based on a data file

To modify a row in a Table or TreeView Table control based on a data file, we advise you to:

modify the record in the data file with <Source>.Modify,
use <Table>.Display to refresh the control.

Modifying a record in a Table control based on a data file and releasing a Trigger

You have the ability to activate a trigger when modifying a record in a Table control based on a data file. For more details, see the documentation about <Source>.DescribeTrigger.

<Table>.Modify function and Modified property

<Table>.Modify has no influence on the Modified property. The Modified property is used to know if the current row has been directly modified by the user (direct input in the control).

Component: wd270obj.dll