Add a column to a able to save the calculated result ..

// No .. Peng used it by himself .. Super simple .. If you want to view more detailed information, go to Google to search [. Net to create a datatable ..
Common. DB = new common. dB ();
Datatable dt = dB. returntable ("select * From pathtb ");
DT. Rows [0] ["ptname"] = "PPP ";

Datacolumn newcolumn;
Newcolumn = DT. Columns. Add ("RTP", type. GetType ("system. String "));
Newcolumn. allowdbnull = true; // can allowdbnull be null? True False
Newcolumn. maxlength = 50;
Newcolumn. defaultvalue = "RTP ";

DT. Rows [0] ["ptname"] = "PPP ";
DT. Rows [0] ["RTP"] = "jkjjrtp ";

 

For (INT I = 0; I <DT. Rows. Count; I ++)
This. page. response. write (DT. rows [I] ["ptname"]. tostring () + dt. rows [I] ["RTP"]. tostring () + "<br> ");
DB. Close ();
// Vs2003 debugging successful!