Using a button to export multiple records

From the looks of it there is no way to export through a button. Maybe through javascript or through a json you can "export".

One possiblility is the use of createTempFile, but I don't use the cloud version so I can't test it out.

Do you just want to open the export interface with a button?

If so, you put this code on your button (need to use NativeJS)

#{ ui.currentView.table.menuExportData() }#

If you want to execute the export directly, you can do it with this code (only for the could version):

var fileName := "myExport2.csv";
var exportSettings := {
    sep: ",",
    qut: """",
    lf: "%0D%0A",
    numberFormat: "point",
    dateFormat: "locale",
    header: true,
    sepHeader: false,
    encoding: "utf8"
}

#{:text:callback
window.util.renderCSV(window.database, window.ui.currentView.table, exportSettings)
    .then((textData) => {
        NinoxDocumentInteraction.openFileWithServer(fileName, 'text/csv', textData, !1, !0)
        callback(textData)
    })
}#;

exportSettings corresponds to the information requested from the user in the export interface.

For App version, you can create text file with your data :

var fileName := "myExport2.csv";
var exportSettings := {
    sep: ",",
    qut: """",
    lf: "%0D%0A",
    numberFormat: "point",
    dateFormat: "locale",
    header: true,
    sepHeader: false,
    encoding: "utf8"
}
var data := #{:text:callback
    window.util.renderCSV(window.database, window.ui.currentView.table, exportSettings)
        .then((textData) => {
            callback(textData);
        })
}#;
createTextFile( this, data, fileName );

 The file is attached to current record.