Using rowexpander in extjs4

Add code snippe below to your grid:

 

        plugins: [{
            ptype: 'rowexpander',
            rowBodyTpl : [
                '<p>{yourcolumn}</p>'
            ]
        }],

 

How to expand all after store finishes loading?

 

I got many answers from google but they did not work!

 

Do not use

 

expander.expandRow(rownum);

 

Instead you should use

 

expander.toggleRow(rownum);