how can i use multiple delimeter on arraylist

Question

Hi everyone below i have a code 

 

string[] seledCats = new string[0];

var condsCats = EzCoding.Web.UI.QueryStringParsing.GetValue("CondsCats", EzCoding.Web.RequestMethod.Post);

if (condsCats != null)

{

seledCats = condsCats.Split(new string[] { "," }, StringSplitOptions.RemoveEmptyEntries);

}

string sheetValue = rblSheetList.SelectedValue;

string sqlExport = "";

sqlExport += "select md.DATE as '??', mc.CAT_NAME as 'CATEGORY_NAME',msc.MATERIALS_SUBCAT as SUBCATEGORY_NAME,mc.CAT_CODE as 'CATEGORY_CODE',";

sqlExport += " msc.TARGET_CODE as 'SUBCATEGORY_CODE',msc.UNIT,msc.SPECIFICATION,md.DATA, ";

sqlExport += " CAST(CASE when md.SHEET = '0' then '????' when md.SHEET = '1' then '??' ";

sqlExport += " when md.SHEET = '2' then '???' END as nvarchar) SHEET ";

sqlExport += " from MATERIALS_CAT as mc";

sqlExport += " Inner Join MATERIALS_SUBCAT as msc ";

sqlExport += " on msc.TARGET_SID = mc.CAT_CODE ";

sqlExport += " inner join MATERIALS_DATA as md ";

sqlExport += " on md.CODE = msc.TARGET_SID";

sqlExport += " where md.SHEET ='" + sheetValue + "' and mc.CODE in('"+ condsCats +"')";

 

my  condsCats value after getting value split like that A1,A2 , but i wantto split like that  'A1','A2' 

 

because need to use on sql query

 

anybody have an any idea for solve this stupid problem ?