Use proxy extraParams:
Code:
searchUser: function(grid, record) {//the grid desplayed from userlist view
var SearchGrids = this.getSearchGridsStore(), // or SearchGrids = grid.getStore(),
searchId=record.get('id');
SearchGrids.proxy.extraParams.searchId = searchId;
SearchGrids.load(
callback: function () {
// store loaded
}
});
if (this.searchGridWin) {
// close opened window
this.searchGridWin.close();
//this.searchGridWin.destroy(); // if window closeAction != 'destroy' uncomment
this.searchGridWin = null;
} else {
this.searchGridWin = Ext.widget('SearchGrid');
this.searchGridWin.show();
}
},