Hello Pradeep,
Are you working with CustomSorting? I've created a sample application, in which I've enabled Sorting by clicking on the Smarttag located at the top right corner of the control and checking the "Allow sorting" option.
Using the Spread Designer, I've added 3 rows and 3 columns and set the Cell type of all the 3 columns to Integer. In Colum A and B I've entered some arbirary integer values and then I've set the formula for Column C, =Sum(A1,B1). I've also enabled "Allow Inserting" and "Allow Deleting". Finally, I've set ClientAutoCalculation property of the spread to true.
I am successfully able to sort the columns and getting correct values for formulaes. I am able to insert new rows and delete existing rows and everything is working as expected.
I am using the latest build of Spread for ASP.Net version 4.0.3506.2008
Attached is the sample.
Regards,
Scott S.
Product Manager, Spread ASP.NET
GrapeCity FarPoint