Ext.MessageBox.progress not showing

[Joche]

My code is rather complex and I will take this shot before I break it out to give you an example.

I have a Grid. From the grid I open a dialog box and from that dialog box another dialog box. The last dialog box shows four content panels.

I would like to display a progress meter when the last dialog box is to be initialized because it takes a while. Unfortunately I can't get the Ext.messagebox to display until the last dialogbox is rendered and displayed. Is this a known behavior or have I done something wrong?



function _showNames() {
console.log('Showing messagebox');
Ext.MessageBox.progress("Setting up name picker","Drawing graphics");
ShowNamesPicker();
}

this.namePickerBtn = new Ext.Button('show-namepicker-btn',{text:'Change access...', handler:_showNames});