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Create excel file from Binary data on SqlServer

Posted By:      Posted Date: August 27, 2010    Points: 0   Category :ASP.Net


My requirement is that i upload an excel file then i need to validate that data.


1. Uploading file using using upload control saving binary in SqlServer

2. Then i am creating file from binary data  on Sql Server using below command and then using OPENROWSET to dump data to Sql table

3. Then reading Sql Table row wise and validating data.


Alter Procedure spUploadExcelFile
  @PKID int,
  @BatchID int


	Declare @VarBin varbinary(max)
	Declare @FileName varchar(100)
	DECLARE @sql nvarchar(MAX)
                DECLARE @errMsg nvarchar(MAX)
	DECLARE @ObjectReturn INT
	DECLARE @ErrorSource VARCHAR(255)
	DECLARE @ErrorDesc VARCHAR(255)
	DECLARE @ObjectToken INT

	Select @VarBin  = Content , @FileName = [FileName] from MultilangBinaryData Where PKID = @PKID
	SET @FileName = 'C:\'  + @FileName
	EXEC sp_OACreate 'ADODB.Stream' @ObjectToken OUTPUT
	EXEC sp_OASetProperty @ObjectToken, 'Type', 1
	EXEC sp_OAMethod @ObjectToken, 'Open'
	EXEC sp_OAMethod @ObjectToken, 'Write', NULL, @VarBin
	EXEC sp_OAMethod @ObjectToken, 'SaveToFile', NULL, @FileName, 2
	EXEC sp_OAMethod @ObjectToken, 'Close'
	EXEC sp_OADestroy @ObjectToken  
	SET @sql = 'INSERT INTO dbo.UserBulkData SELECT 0,NULL,'+ @BatchI

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Imports Microsoft.VisualBasic
Imports System
Imports System.Data
Imports System.Configuration
Imports System.Web
Imports System.Web.Security
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports System.Web.UI.WebControls.WebParts
Imports System.Web.UI.HtmlControls
Imports System.Data.SqlClient
Imports System.IO

Partial Class Uploads_UReceipts
    Inherits System.Web.UI.Page
    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

        If Request.QueryString("ImageID") IsNot Nothing Then

            Dim strQuery As String = "select Name, ContentType, Data from tblFiles where id=@id"

            Dim cmd As SqlCommand = New SqlCommand(strQuery)

            cmd.Parameters.Add("@id", SqlDbType.Int).Va
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