Calling redux props within callbacks

Just trying to work out how to pass this through the correct way to allow access of redux dispatch events.

loadFile() {
    dialog.showOpenDialog({properties: ['openFile']}, function(fileNames) {
        // fileNames is an array that contains all the selected
        if(fileNames === undefined){
            alert("No file selected");
            return;
        }

        fs.readFile(fileNames[0], 'utf-8', (err, data) => {
            if (err) {
                alert("An error occurred reading the file: " + err.message);
                return;
            }

            this.props.loadData(JSON.parse(data));
        });
    });
}

via Steven Laidlaw