how to move rows up and down in gridview using asp.net?

http://dotnetspeaks.net/post/Moving-GridView-Rows-Up-Down-in-a-GridView-Control.aspx

example is good.but i got an error like this

Object reference not set to an instance of an object.

amnk.info 4-Aug-13 23:29pm

i'm using view state to fill my gridview

[no name] 3-Mar-15 5:38am

chk ur view state ? it have contain any value ?

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Accepted Answer · 2013-08-02T08:21:00

Solution 2

Refer -

1. Moving GridView Rows Up & Down in a GridView Control[^]
2. Move asp.net gridview rows up and down with arrow button click[^]

Posted 2-Aug-13 8:21am

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)