VB.Net, ADO.Net: How to handle null value in a database

Sometimes your program might crashes because of null value in the database. The following shows the sample code to check whether a value is a null.

Example:

If ds.Tables(0).Rows(cboProd.SelectedIndex).Item("price") _ Is DBNull.Value Then
   lblPrice.Text = "Not Available"
Else
   lblPrice.Text = _
     ds.Tables(0).Rows(cboProd.SelectedIndex).Item("price")
End If

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