<Table>.Save (Function)

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Updating the data file linked to the Table or TreeView Table control

Cascading input and update of linked data file

Re-displaying the row that was saved

Locking and updating the data file

Duplicates and referential integrity

Use <Table>.Save to reduce the number of lines of code

See also

<Table>.Save (Function)

In french: <Table>.Enregistre

Modifies or adds the record associated with the current row in the browsing Table or browsing TreeView Table control. The record is updated:

in the data file linked to the control.
Versions 20 and later
in the object linked to the control.
New in version 20
in the object linked to the control.
in the object linked to the control.

Versions 16 and later

This function is now available for WINDEV applications in Linux.

New in version 16

This function is now available for WINDEV applications in Linux.

Example

// Save the data found on the current row
// for the "TABLE_Product" control
TABLE_Product.Save()

// Save the data found on row 5
// while modifying a column by programming
TABLE_Product = 5
TABLE_Product[5].COL_Cap = "new value"
TABLE_Product.Save()

Versions 20 and later

// Event Row exit
IF TABLE_Customer..Modified = False THEN
RETURN
END
pclFormPresentation is PCustomerForm dynamic
IF TABLE_Customer..NewLine THEN
pclFormPresentation<-gclPresentation.New()
ELSE
pclFormPresentation<-gclPresentation.Modify()
END
TABLE_Customer.Save(pclFormPresentation)

New in version 20

Syntax

Saving in a data file Hide the details

<Table control>.Save()

<Table control>: Control name

Name of browsing Table control to use.

Saving in an object (syntax mainly available for the MVP) Hide the details

<Table control>.Save(<Object name>)

<Table control>: Control name

Name of Table control on variable to use.

<Object name>: Character string

Name of object to use. The content of the current row found in the Table control will be saved in the members of the associated object.

Remarks

Use conditions

<Table>.Save can be used on:

a browsing Table control or a browsing TreeView Table control.
a single-selection or multiselection control. For a multiselection control, only the last selected record is modified (the record corresponding to the last current row).
Versions 20 and later
a Table control on variable (syntax 2).
New in version 20
a Table control on variable (syntax 2).
a Table control on variable (syntax 2).

Updating the data file linked to the Table or TreeView Table control

<Table>.Save saves the current control row in the data file linked to the control. The items are automatically assigned with the values of associated columns in the current row.

When a modification is performed, <Table>.Save replaces the former values by the new ones. The items not found in the control are not modified.

Caution:

<Table>.Save only manages the data file associated with the control. If some columns are linked to items found in other data files, these data files are not automatically managed.
The "image" columns are not saved by <Table>.Save. To modify the content of the memo associated with the image (rare case), use <Source>.LinkMemo.
In the Check Box columns, the call to <Table>.Save is implicit and it cannot be disabled. In any case, the modification of the value of check box will be applied to the data file.

Cascading input and update of linked data file

If the cascading input is enabled, the data file linked to the Table or TreeView Table control is automatically modified when the user goes to the next row (use of <Table>.Add, <Table>.AddLine, <Table>.Insert, <Table>.InsertLine, <Table>.Modify and <Table>.ModifyLine). <Table>.Save is useless.
If the cascading input is not enabled, the data file linked to the Table or TreeView Table control is not modified. To write the added or modified row into the linked data file, <Table>.Save must be used after the addition or modification function.

Remarks:

..NewLine is used to find out whether the current row was just created by <Table>.Add, <Table>.AddLine, <Table>.Insert and <Table>.InsertLine (..NewLine = True).
..Modified is used to find out whether the user modified the row directly in the control (..Modified = True).

The cascading input is not available for the browsing Table controls with direct access. This option is available for the browsing Table controls loaded in memory.

Re-displaying the row that was saved

After the call to <Table>.Save, the row saved may "disappear". This "disappearance" is due to the value of the search key for the added or modified record.

To avoid this problem, re-display the Table or TreeView Table control with <Table>.Display.

Locking and updating the data file

If the data file is locked in the current process, <Table>.Save saves the current row and unlocks the data file.

Duplicates and referential integrity

If the management of duplicates is enabled (<Source>.SetDuplicates), HErrorDuplicates must be checked after the execution of <Table>.Save to check the key uniqueness.
If the management of referential integrity is enabled (HSetIntegrity), HErrorIntegrity must be checked after the execution of <Table>.Save to check the referential integrity.

Use <Table>.Save to reduce the number of lines of code

<Table>.Save reduces several lines of code. This single line allows you to avoid assigning the item variables one by one.

For example, the following code:

Customer.LastName = LastNameColumn
Customer.FirstName = FirstNameColumn
Customer.Address = AddressColumn
Customer.ZC = ZCColumn
Customer.City = CityColumn
HAdd(Customer)

is replaced by the following line:

TABLE_Customer.Save()

Component : wd250obj.dll