[Solved] Error BC30038 Option Strict On prohibits operands of type Object for operator

Dear Mr.Dharmendra Das,

Thanks for your Respond

but when my project visual studio set compile option strict to on 

an error appears below the line code error like this

"Error BC30038 Option Strict On prohibits operands of type Object for operator '+'."

m_DataTable.Rows(row2.Index)("ProductName")

Please guide me

Thanks