Dynamic Table Name And Fields

I need to get the field values of a table (name will be dynamic).
Then assign those values to properties in a class.

Let's say I will get the table name dynamically.

dim tblName as string = "tablea"

The 2 tables can each have 25 fields or so.

I need a way to select the amt and email field values from tblName.  
Without saying "select job_amt, job_email from ...

Is there someway to get the values based on the column name.  
So if the column name has amt and email, then give me those values.

Maybe loop through the datatable - then for each column --
if col.ColumnName.IndexOf("Amt") = 0 or col.ColumnName.IndexOf("email") = 0 then
then drop  that column from the datatable.

ex of table structure

<u>tablea</u>
job_id
job_amt
job_email

<u>tableb</u>
dance_id
amt_dance
dance_email