Foreach loop on datatables within dataset

Question

Please see the following

 

DataSet ds = new DataSet("AB");

ds.ReadXml(reader);

DataTable dtProperty = ds.Tables["property"];

DataTable dtvalue = ds.Tables["value"];

 

Table table = GeneratingTable();

 

property table has : prop_id,label

value table has:value,prop_id 

 

DataRow dr;

DataRow dr2;

 

for (int r = 0; r < dtProperty.Rows.Count; ++r)

{

dr = dtProperty.Rows[r];

dr2 = dtvalue.Rows[r];

}

 

Now I want the same result by looping through values table only but not property table. something looks like 

 

foreach(prop_id in  dtvalue)

{

getpropertyname(prop_id) 

} 

 

I know the logic but finding difficulty with code. Can someone help me on this? Please

 

Thanks