extjs - win with tabs

This is an extjs application. There is a grid along with some buttons. When I double click on the grid or the edit user button a pop up window will appear. The pop up window consist of 3 panels and one of them is branch restriction. The process is when I double click a record on the grid, a group of information will be parsed to the pop up window and displayed. This is successful. For the branch restriction tab there is a grid and this grid will only refresh when I click on the other tab. This is a problem in which I require help. ## Deliverables I require that each time the edit user button is clicked or the grid record is double clicked the grid on the branch restriction tab will be refreshed. Other wise when? the? edit user button is clicked or the grid record is double clicked then the focus should be on the first tab and when I click on the branch restriction tab the grid on this tab will be loaded with the information. Please take note that I am parsing a value as a baseParam and this value is picked up from the main grid.