load data table content into an array

Question

I have a data table and i want to load my data table content into an array.how can i do this?help me....

 

datatable dt= new data table();  //I have two column in my data table Name and Marks

 

Name	Marks
A	20
B	30
C	40

 

I want to load it into an array like {("A",20), ("B",30),("c",40)}

please suggest me some ideas ....