How to export data in multiple csv files?

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C#

C#4.0

Hey Friends,

i have export method which running gr8ly now i have to export data into multiple separate files which based on the following query,

DataExport(string query,string filename) ////this is intial method////

DataExport("SELECT * FROM SaiRamH WHERE [WARD NAME]= 'GENERAL WARD (FEMALE)' AND [REGNO/ID]= 'SH1401/00457';", "GenF0457.csv");

But my problem arises here that i want to export data based on ward name nad regno/id , but there is huge data of patients and regno/id is not serial value to put it on loop, and it is not possible to fire qury for each patient and specify regno/id for each patient. i really dont know how to do it.

when i run above method i want to create a csv file with name consist of first three letters of ward name and last four digits of regno/id. and regno/id and wardname should be retrived from database as datasaved in table serialy. automatically catch both from table without specifying into query.

for example:

here is record in database
wardname,regno/id
generalfemale,SH400/0023
icu,SH408/0804

hey friends i found answer myself by the following method,

public void exportAll()//Function declares methods to export//
{
int i = 0;
for (int icount = 0; icount <= 15; icount++)
{

Object o = saiRamDataSet11.Tables["SaiRamH"].Rows[i]["WARD NAME"];
Object ob = saiRamDataSet11.Tables["SaiRamH"].Rows[i]["REGNO/ID"];

DataExport("select * from SaiRamH where [WARD NAME]='" + o + "'" +
"and [REGNO/ID] ='" + ob + "'", "count"+icount+".csv");
i++;
}