Problem Saving the Excel Sheet

[msaranya]

I am trying to create an Excel sheet and save it in server... Once it is saved, I display a link to the user "download excel". He can click it and then download it.. The pblm is I cant save the excel it says "The file could not be accessed." please help me out.

Protected Sub btn_Excel_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btn_Excel.Click
        Dim dt As DataTable = New DataTable()
        dt = get_SearchRecords()
        Dim obj As ExcelHelper = New ExcelHelper
        obj.CheckExcellProcesses()

        Dim xlWorkBook As Excel.Workbook = Nothing
        Dim xlWorksheet As Excel.Worksheet = Nothing
        Dim oxl = New Excel.Application()
        xlWorkBook = New Excel.Application().Workbooks.Add(Missing.Value)
        Dim strCurrentDir As String = Server.MapPath(".") + "\\"
        Try

            obj.RemoveFiles(strCurrentDir)
            xlWorkBook = oxl.Workbooks.Add(Missing.Value)
            xlWorkBook.Application.Visible = True
            xlWorksheet = xlWorkBook.ActiveSheet
            xlWorksheet.Name = "SAMPLE"                xlWorksheet.Cells(1, 1) = "ID"
            xlWorksheet.Cells(1, 2) = "Title"
            xlWorksheet.Cells(1, 3) = "Description"
            xlWorksheet.Cells(1, 4) = "Created By"
            xlWorksheet.Cells(1, 5) = "Created On"
            xlWorksheet.Cells(1, 6) = "Sta"
            xlWorksheet.Cells(1, 7) = "Team"
            xlWorksheet.Cells(1, 8) = "Challenge"
            xlWorksheet.Cells(1, 9) = "Category"
            xlWorksheet.Cells(1, 10) = "Sub Category"
            xlWorksheet.Cells(1, 11) = "Region"
            xlWorksheet.Cells(1, 12) = "Country"
            xlWorksheet.Cells(1, 13) = "Votes Up"
            xlWorksheet.Cells(1, 14) = "Votes Down"
            xlWorksheet.Cells(1, 15) = "Docs"

            Dim dtexcel As New DataTable()
            dtexcel = dt
            If (dtexcel.Rows.Count > 0) Then
                Dim i As Integer = 2

                xlWorksheet.Range("A1", "O1").Font.ColorIndex = Excel.Constants.xlColor3
                xlWorksheet.Range("A1", "O1").Font.Bold = True
                xlWorksheet.Range("A1", "O1").HorizontalAlignment = HorizontalAlign.Center
                xlWorksheet.Range("A1", "O1").VerticalAlignment = VerticalAlign.Top
                For Each dr In dt.Rows
                    xlWorksheet.Cells(i, 1) = dr("ID")
                    xlWorksheet.Cells(i, 2) = dr("TITLE")
                    xlWorksheet.Cells(i, 3) = dr("DESCRIPTION")
                    xlWorksheet.Cells(i, 4) = dr("Submitter")
                    xlWorksheet.Cells(i, 5) = dr("Createdon")
                    xlWorksheet.Cells(i, 6) = dr("STA")
                    xlWorksheet.Cells(i, 7) = dr("TEAM")
                    xlWorksheet.Cells(i, 8) = dr("CHALLENGE")
                    xlWorksheet.Cells(i, 9) = dr("CATEGORY")
                    xlWorksheet.Cells(i, 10) = dr("SUBCATEGORY")
                    xlWorksheet.Cells(i, 11) = dr("REGION")
                    xlWorksheet.Cells(i, 12) = dr("COUNTRY")
                    xlWorksheet.Cells(i, 13) = dr("voteup")
                    xlWorksheet.Cells(i, 14) = dr("votedown")
                    xlWorksheet.Cells(i, 15) = dr("doc_cnt")
                    xlWorksheet.Range("H1", "H" & i).RowHeight = 16.0
                    xlWorksheet.Range("H" & i, "H" & i).ColumnWidth = 25.0
                    i = i + 1
                Next
                xlWorksheet.Range("A1", "O" & i).Font.Name = "Verdana"
            End If
            Dim strFile As String = "SAMPLE_" & System.DateTime.Now.Ticks.ToString() & ".xls"
            xlWorkBook.SaveAs(strCurrentDir & strFile, Excel.XlFileFormat.xlWorkbookNormal, System.DBNull.Value, System.DBNull.Value, False, False, Excel.XlSaveAsAccessMode.xlShared, False, False, System.DBNull.Value, System.DBNull.Value, System.DBNull.Value)
            Dim strMachineName = Request.ServerVariables("SERVER_NAME")
            Dim File = "http://" & strMachineName + "/" & "Folder" & "/" & strFile
            Dim filename As String = strCurrentDir & strFile
            errLabel.Text = "<A class=addlink href=" + File.Replace(" ", "%20") + ">Download Excel</a>"

Exception is caught at this line
xlWorkBook.SaveAs(strCurrentDir & strFile, Excel.XlFileFormat.xlWorkbookNormal, System.DBNull.Value, System.DBNull.Value, False, False, Excel.XlSaveAsAccessMode.xlShared, False, False, System.DBNull.Value, System.DBNull.Value, System.DBNull.Value)

What could be the problem?

[Pgmer]

Do u have permision on file?
Is File is read only?
Check out

[msaranya]

Do u have permision on file?
Is File is read only?
Check out

Thanks Pgmer... The folder has got full rights... I found the solution

This is c# syntax

Dim strCurrentDir As String = Server.MapPath(".") + "\\"

I replaced the above line in VB.NET as

Dim strCurrentDir As String = Server.MapPath(".") + "\"

[Pgmer]

Oooops..:)
Anyways nice that u got the sollution..
Happy coding...:)