How to remove new line Constrains in txtfile using asp.net

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C#

ASP.NET

SQL-Server-2008R2

How to remove new line Constrains in txtfile using asp.net?
I want to remove my txtfile new line Constrains.Any one can help me??

<<HAWB>>,"940",1899/12/30,"Lemon
","CHINA","0","CHINA","CN","T B S INT'L","KOTHALA","KADULA","SRI LANKA","LK","0","0",1,2.6,3.75,"D",,,2,"N/A","COD VW:30X25X25=3.75KG CN/HK/LKO"

txtMAWB.Text = "";
txtMAWBDate.Text = "";
txtFlight.Text = "";
txtFlightDate.Text = "";
txtNoOfPkgs.Text = "";
txtWeight.Text = "";
lblError.Text = "";
 
List testParse = null;

string[] row =null;
 
try
{      FileUpload1.PostedFile.SaveAs(System.Web.HttpContext.Current.Request.PhysicalApplicationPath + "source.txt");
     
    testParse = parseCSV(System.Web.HttpContext.Current.Request.PhysicalApplicationPath + "source.txt", 24);
     
    BAL.CSV_temp.newTable1 = new DataTable();
    BAL.CSV_temp.newTable = new DataTable();
     
    //HAWBDetails.DataSource = BAL.CSV_temp.newTable1;
    //HAWBDetails.DataBind();
     
    foreach (string column in testParse[0])
    {
        BAL.CSV_temp.newTable.Columns.Add();
        BAL.CSV_temp.newTable1.Columns.Add();
    }
    
    row = testParse[0];
    BAL.CSV_temp.newTable.Rows.Add(row);
    
    txtMAWB.Text = BAL.CSV_temp.newTable.Rows[0].ItemArray.ElementAt(1).ToString();
    txtMAWBDate.Text = BAL.CSV_temp.newTable.Rows[0].ItemArray.ElementAt(2).ToString();
    txtFlight.Text = BAL.CSV_temp.newTable.Rows[0].ItemArray.ElementAt(3).ToString();
    txtFlightDate.Text = BAL.CSV_temp.newTable.Rows[0].ItemArray.ElementAt(4).ToString();
    txtNoOfPkgs.Text = BAL.CSV_temp.newTable.Rows[0].ItemArray.ElementAt(5).ToString();
    txtWeight.Text = BAL.CSV_temp.newTable.Rows[0].ItemArray.ElementAt(6).ToString();
     
    List testParse1 = testParse.GetRange(1, testParse.Count - 1);
    
    foreach (string[] row1 in testParse1)
    {
        BAL.CSV_temp.newTable1.Rows.Add(row1).ToString().Trim();
    }
     
    //Label3.Text = BAL.CSV_temp.newTable1.Rows[0].ItemArray.ElementAt(6).ToString();
     
    HAWBDetails.DataSource = BAL.CSV_temp.newTable1;
    HAWBDetails.DataBind();
     
    lblError.Text = "";
    }
catch (Exception ex)
{
    lblError.Text = "File contents are not in the correct format";
    ErrorLog el = new ErrorLog();
    el.ErrorRegistry(ex, "CSV_reader.aspx", "Selecting File", "NA", "NA");
}