GridView.undo

Syntax

undo();

Description

The undo method cancels all changes in the table.

Example

To execute the example, the HTML page must contain the ExpressBox component named expressBox (see Example of Creating the ExpressBox Component) and with the loaded table in the express report workspace.

Set and show new value of table cell, next undo the changes. Show cell value after undoing the changes, also show name of express report document and ID of the service used to work with express report:

// Get express report table
var grid = expressBox.getDataView().getGridView();
// Get table
var tabSheet = grid.getInstance();
// Set and output a new value for a cell with the address [3, 1]
tabSheet.setCellValue(90, 3, 1);
console.log("New cell value [3, 1]: " + tabSheet.getCellValue(3, 1));
// Undo pending changes
grid.undo();
// Output the cell value after undoing changes
console.log("Value of the cell [3, 1] after undoing changes: " + tabSheet.getCellValue(3, 1));
// Output express report document name
console.log("Express report document name: " + grid.getSource().getName());
// Output identifier of the service used to work with express reports
console.log("Identifier of the service used to work with express reports: " + grid.getSrv().getId());

As the result the browser console displays cell value before and after the changes are canceled, name of express report document, and ID of the service for working with express report:

New value of the cell [3, 1]: 90

Value of the cell [3, 1] after changes are canceled: 5

Name of express report document: GridView

ID of the service used to work with express report: EaxMdService434