hi all,

i am new to JQGrid.

now i was refer all concept behind the JQGrid,

in Hierarchy (2 levels) 

 i got error in jquery see the image (Uncaught TypeError: undefined is not a function )  when Reload subgrid on expand in Enabled.

but it was working when Reload subgrid on expand was disabled and Auto expand child rows on load Enabled.

anyone give the answer.