import csv file into database table in asp.net

Question

i want to import csv file into database table in asp.net using upload button.

 

where table field are like

1.name

2.address

3.ph_no

4.email

 

and my csv file structure are each and every time are different different like

 

1st time i am upload a csv file whose structure are like bellow

 

1.address

2.name

3.email

4.ph_no

 

2nd time i am upload a csv file whose structure are like bellow

1.email

2.name

3.ph_no 

 

how can it possible ?

please help me.