Question

I am using VS2005 C# and im trying to convert a pipe delimited text file to excel workbook format. Below is my code:

public partial class TextToExcel : System.Web.UI.Page
{

    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void SaveAsExcelBtn_Click(object sender, EventArgs e)
    {

        string xlExtension = ".csv";
        string strExcelOutputFilename = "C:/Documents and Settings/rhlim/My Documents/" + DateTime.Now.ToString("yyyyMMddHHmmss") + xlExtension;

        // Before attempting to import the file, verify 
        // that the FileUpload control contains a file. 
        if (TextFile.HasFile)
        {
            // Get the name of the Excel spreadsheet. 
            string strFileName = Server.HtmlEncode(TextFile.FileName);

            // Get the extension of the text. 
            string strExtension = Path.GetExtension(strFileName);



            // Validate the file extension. 
            if (strExtension != ".TXT" && strExtension!=".txt")
            {

                Response.Write("<script>alert('Failed to import. Cause: Invalid text file.');</script>");
                return;
            }




            // Generate the file name to save the text file. 
            //string strUploadFileName = "C:/Documents and Settings/rhlim/My Documents/Visual Studio 2005/WebSites/SoD/UploadFiles/" + DateTime.Now.ToString("yyyyMMddHHmmss") + strExtension;

            using (StreamWriter outputWriter = new StreamWriter(File.Create(strExcelOutputFilename)))
            {
                StreamReader inputReader = new StreamReader(TextFile.FileContent);
                string fileContent = inputReader.ReadToEnd();
                fileContent = fileContent.Replace('|', ';');
                outputWriter.Write(fileContent);
                TextFile.SaveAs(strExcelOutputFilename);
                inputReader.Close();
            }


            //string strExcelOutputFilename = "C:/Documents and Settings/rhlim/My Documents/" + DateTime.Now.ToString("yyyyMMddHHmmss")+xlExtension;
            // Save the Excel spreadsheet on server. 
            //TextFile.SaveAs (strExcelOutputFilename);


        }
        else Response.Write("<script>alert('Failed to import. Cause: No file found');</script>");
    }
}

Currently I am having some file saving errors

Any suggestions? Thanks a lot!

Answer 1

That’s because Excel doesnt support pipelines you have to convert it so comma’s or semicolumns like:

using (StreamWriter outputWriter = new StreamWriter(File.Create(strExcelOutputFilename)))
{
    StreamReader inputReader = new StreamReader(TextFile.FileContent);
    string fileContent = inputReader.ReadToEnd();

    fileContent = fileContent.Replace('|', ',');
    outputWriter.Write(fileContent);
}