[satheesh985]

in combo box string is xxx and yyy and zzz.we have to store the value to each string like xxx=10, yyy=20 and zzz=30. formula is string(xxx)/1.71^(1/2).. if we select xxx formula have to take value 10 or yyy means formula have to take value 20.

[CharlieMay]

Using a Select Case statement, you could base the Case off of the Combobox.SelectedItem

That should allow you to then set a value off of the item selected.

If you get stuck, post your code attempt so that someone can give you more in-depth help. We will help you with your problem but we won't write the code for you.

This post has been edited by CharlieMay: 01 September 2010 - 05:31 AM

[emresutisna]

Perhaps this is what you mean :

dim cboVal, result as Integer
Select Case ComboBox1.Text
  Case "xxx"
     cboVal = 10 
  Case "yyy"
     cboVal = 20
  Case Else
     cboVal = 30
End Select
result = cboVal/1.71^(1/2)
MessageBox.Show(result.ToString)