Call javascript function on sub-grid refresh/load in Microsoft Dynamics CRM

Recently, I came across a requirement where I had to do some calculation based on records added/deleted in sub-grid on CRM form. To achieve this, I have added load event on sub-grid in javascript where I could call the method which is doing the calculations.

Below piece of code will be used to add load event on sub-grid and function addEventToGridRefresh() should be registered on form load.

       
  
function addEventToGridRefresh() {
    // retrieve the subgrid
    var grid = Xrm.Page.getControl('#GridControlName#');
    // if the subgrid still not available we try again after 2 second
    if (grid == null) {
        setTimeout(function () { addEventToGridRefresh(); }, 2000);
        return;
    }
    // add the function to the onRefresh event
    Xrm.Page.getControl('#GridControlName#').addOnLoad(totalAssetsOfHousehold);
    // This is used to delay refresh by 1 second because sometimes grid takes time to load. 
 // If you do not include below line, you may not see '+' and associate button on grid.
    setTimeout(function () { Xrm.Page.data.refresh(); }, 1000);
}
  
 

Here totalAssetsOfHousehold() is the actual method which is doing all the calculations. So whenever you add/delete record from sub-grid, totalAssetsOfHousehold() will be triggered.

thanks
p.