Extjs 4 downloading a file through ajax call

Question

The problem is very simple: i have to download a file when i submit a form, it\'s an ajax call when the form is submitted which lets me build a file with the data taken from

Answer 1

I had a similar problem trying to download an Excel File in an Ajax call I solved it this way:

Make a standard sumbit instead of Ajax.

var form = Ext.create('Ext.form.Panel', { // this wolud be your form 
    standardSubmit: true,         // this is the important part 
    url: '../ObtenerArchivoAdjuntoServlet' 
});

form.submit({
    params: {
       nombreArchivo: nombreArchivo
    }
});

After this you would be able return the desired file.