User copies several values (at once) from a local excel spreadsheet and pastes them into the jdatagrid, is this feature supported?
The JDataGrid component support the feature copy and paste, you can copy and paste the data from Microsoft Excel, drag cell data from Microsoft Excel, as you know, the copy and paste feature in Java Applet Environment need AWT permission, so you need sign the Jar archive when you deploy your application to your website.