Question

Hi I’m using the following code to generate a CSV file containing data from a dataset. The CSV generates fine and a prompt box displays so that the user can either open or save the csv file. What I’m wondering is whether it’s possible to save the CSV file?

Thanks for any help

Edited with solution (NB I don’t need the prompt box to open as I’ll be writing additional code to generate and save a number of files and then display links to them). This saves the dataset as a CSV on our server.

Protected Sub exportBtn_click(ByVal sender As Object, ByVal e As System.EventArgs)
    Dim ds1 As DataSet
    ds1 = csvdownload.ReturnNewPledges()
    Dim csv As New chartnew.csvhelper
    Dim strData1 As String = csv.Export(ds1, True)

    Dim todaydate As Date = Date.Now.Date
    Dim todaystr As String = todaydate.ToString("ddMMyyyy")
    Dim filename As String = todaystr & "_filename.csv"

    Dim saveDir As String = "writedir\files\"
    Dim appPath As String = Request.PhysicalApplicationPath
    Dim filePath As String = appPath + saveDir + filename

    Dim writer As New StreamWriter(filePath)
    writer.Write(strData1)
    writer.Close()

End Sub

Answer 1

Use a StreamWriter:

    Dim SwFromFile As StreamWriter = New StreamWriter(fileName)
    SwFromFile.Write(strData1)
    SwFromFile.Flush()
    SwFromFile.Close()