unable to perform inline editing

[Priya]

 

on clicking GridEditCommandColumn postback occours but not able to perform inline editing..what methods i need to implement,i want to bind dropdown on editing that too from code behind,so where should i write that method

 

[Princy]

Hello Priya,

I cannot reproduce the issue at my end, The inline editing worked as expected. You can see the same in the following demo as well.
Grid / Automatic Operations

You can bind the DropDown from the ItemCommand event which is described in the following help article.
Operations with MS DropDownList in EditItemTemplate of GridTemplateColumn.

Thanks,
Princy.