I have create one custom list and create with required columns like uniqueidentifier ,sub identifier ,user name, access type....... like that but every time the uniquefier is incremented by one (ex: R1,R2,R3,R4.......)and sub identifier ismay be always S0.but in here I want enter one new item like uniqueidentifier is R1 and sub identifier is S0, and next I want add one more item that is like R2 ,R3...... Now my question is I want add one more item with in the R1. and that result is like uniqueidentifier is R1 and sub identifier is S1, and I want add one more item in the R1. and that result is like uniqueidentifier is R1 and sub identifier is S2
this is my problem please help me ......