I was trying to implements gridview sorting system from this articles Handle Sorting event in GridView in ASPNetBut after Ive modificated the code to suit i

حضرت خواجہ سیدنا معین الدین حسن چشتی سنجاری اجمیری رحمۃ اللہ علیہ

ASP.Net Connection string Error: Object reference not set to an instance of an object

Niccosan

I was trying to implements gridview sorting system from this articles :

But, after I've modificated the code to suit it with my project it happens to be "NullReferenceException Was Unhandled By User Code". Screenshot :

What should I do ?

pandeyis...

0 1

Refer below link -

I agree, here is the link: https://www.e-iceblue.com/Introduce/spire-office-for-net-free.html