Converting Excel to CSV with SSIS - ssis

Question

I found code to use in my script task below, to convert my excel files to CSV files and put them in a seperate folder. But my files only have one sheet (so think there is extra code), but also when it converts it over the column header is removed. I also set up SSIS variables for (destination, source, and file dlimiter) Any suggestions:
/// <summary>
/// ScriptMain is the entry point class of the script. Do not change the name, attributes,
/// or parent of this class.
/// </summary>
[Microsoft.SqlServer.Dts.Tasks.ScriptTask.SSISScriptTaskEntryPointAttribute]
public partial class ScriptMain : Microsoft.SqlServer.Dts.Tasks.ScriptTask.VSTARTScriptObjectModelBase
{
#region Help: Using Integration Services variables and parameters in a script
/* To use a variable in this script, first ensure that the variable has been added to
* either the list contained in the ReadOnlyVariables property or the list contained in
* the ReadWriteVariables property of this script task, according to whether or not your
* code needs to write to the variable. To add the variable, save this script, close this instance of
* Visual Studio, and update the ReadOnlyVariables and
* ReadWriteVariables properties in the Script Transformation Editor window.
* To use a parameter in this script, follow the same steps. Parameters are always read-only.
*
* Example of reading from a variable:
* DateTime startTime = (DateTime) Dts.Variables["System::StartTime"].Value;
*
* Example of writing to a variable:
* Dts.Variables["User::myStringVariable"].Value = "new value";
*
* Example of reading from a package parameter:
* int batchId = (int) Dts.Variables["$Package::batchId"].Value;
*
* Example of reading from a project parameter:
* int batchId = (int) Dts.Variables["$Project::batchId"].Value;
*
* Example of reading from a sensitive project parameter:
* int batchId = (int) Dts.Variables["$Project::batchId"].GetSensitiveValue();
* */
#endregion
#region Help: Firing Integration Services events from a script
/* This script task can fire events for logging purposes.
*
* Example of firing an error event:
* Dts.Events.FireError(18, "Process Values", "Bad value", "", 0);
*
* Example of firing an information event:
* Dts.Events.FireInformation(3, "Process Values", "Processing has started", "", 0, ref fireAgain)
*
* Example of firing a warning event:
* Dts.Events.FireWarning(14, "Process Values", "No values received for input", "", 0);
* */
#endregion
#region Help: Using Integration Services connection managers in a script
/* Some types of connection managers can be used in this script task. See the topic
* "Working with Connection Managers Programatically" for details.
*
* Example of using an ADO.Net connection manager:
* object rawConnection = Dts.Connections["Sales DB"].AcquireConnection(Dts.Transaction);
* SqlConnection myADONETConnection = (SqlConnection)rawConnection;
* //Use the connection in some code here, then release the connection
* Dts.Connections["Sales DB"].ReleaseConnection(rawConnection);
*
* Example of using a File connection manager
* object rawConnection = Dts.Connections["Prices.zip"].AcquireConnection(Dts.Transaction);
* string filePath = (string)rawConnection;
* //Use the connection in some code here, then release the connection
* Dts.Connections["Prices.zip"].ReleaseConnection(rawConnection);
* */
#endregion
/// <summary>
/// This method is called when this script task executes in the control flow.
/// Before returning from this method, set the value of Dts.TaskResult to indicate success or failure.
/// To open Help, press F1.
/// </summary>
public void Main()
{
// TODO: Add your code here
string SourceFolderPath = Dts.Variables["User::SourcePath"].Value.ToString();
string DestinationFolderPath = Dts.Variables["User::DestinationPath"].Value.ToString();
string FileDelimited = Dts.Variables["User::FileDelimiter"].Value.ToString();
var directory = new DirectoryInfo(SourceFolderPath);
FileInfo[] files = directory.GetFiles();
//Declare and initilize variables
string fileFullPath = "";
//Get one Book(Excel file at a time)
foreach (FileInfo file in files)
{
string filename = "";
fileFullPath = SourceFolderPath + "\\" + file.Name;
filename = file.Name.Replace(".xlsx", "");
MessageBox.Show(fileFullPath);
//Create Excel Connection
string ConStr;
string HDR;
HDR = "YES";
ConStr = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + fileFullPath + ";Extended Properties=\"Excel 12.0;HDR=" + HDR + ";IMEX=0\"";
OleDbConnection cnn = new OleDbConnection(ConStr);
//Get Sheet Name
cnn.Open();
DataTable dtSheet = cnn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
string sheetname;
sheetname = "";
Int16 sheetcnt = 0;
foreach (DataRow drSheet in dtSheet.Rows)
{
sheetcnt += 1;
if (drSheet["TABLE_NAME"].ToString().Contains("$"))
{
sheetname = drSheet["TABLE_NAME"].ToString();
//Display Sheet Name , you can comment it out
// MessageBox.Show(sheetname);
//Load the DataTable with Sheet Data
OleDbCommand oconn = new OleDbCommand("select * from [" + sheetname + "]", cnn);
//cnn.Open();
OleDbDataAdapter adp = new OleDbDataAdapter(oconn);
DataTable dt = new DataTable();
adp.Fill(dt);
//drop $from sheet name
sheetname = sheetname.Replace("$", "");
//Create CSV File and load data to it from Sheet
StreamWriter sw = new StreamWriter(DestinationFolderPath + "\\" + filename + ".csv", true);
int ColumnCount = dt.Columns.Count;
//we are checking SheetCnt=1, so put header in csv for only one time
if (sheetcnt == 1)
{
// Write the Header Row to File
for (int i = 0; i < ColumnCount; i++)
{
sw.Write(dt.Columns[i]);
if (i < ColumnCount - 1)
{
sw.Write(FileDelimited);
}
}
sw.Write(sw.NewLine);
}
// Write All Rows to the File
foreach (DataRow dr in dt.Rows)
{
for (int i = 0; i < ColumnCount; i++)
{
if (!Convert.IsDBNull(dr[i]))
{
sw.Write(dr[i].ToString());
}
if (i < ColumnCount - 1)
{
sw.Write(FileDelimited);
}
}
sw.Write(sw.NewLine);
}
sw.Close();
}
}
}
Dts.TaskResult = (int)ScriptResults.Success;
}
#region ScriptResults declaration
/// <summary>
/// This enum provides a convenient shorthand within the scope of this class for setting the
/// result of the script.
///
/// This code was generated automatically.
/// </summary>
enum ScriptResults
{
Success = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Success,
Failure = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Failure
};
#endregion
}
}
Sorry first time question here!!!