Here is my code:

  Dim imgStream As Stream = fUpLoadImage.PostedFile.InputStream()
        Dim imgName As String
        Dim imgContentType As String
        Dim imgLen As Int32
        Dim imgbin() As Byte
        Dim imgName2 As String
        Dim imgContentType2 As String
        Dim imgbin2() As Byte
        imgLen = fUpLoadImage.PostedFile.ContentLength
        imgContentType = fUpLoadImage.PostedFile.ContentType

        Dim UserId As String
        Dim PatientId As String
        Dim RecordId As String

        UserId = txtInsertUserId.Text.ToString
        PatientId = txtInsertPatientId.Text.ToString
        RecordId = txtInsertRecordId.Text.ToString


        Dim imgBinaryData(imgLen) As Byte
        Dim n As Int32 = imgStream.Read(imgBinaryData, 0, imgLen)
        imgbin = imgBinaryData

        'Save images to Database
        Dim MyConnection As New OleDbConnection(ConfigurationSettings.AppSettings( "ConnectionString"))

        MyConnection.Open()

        Dim oCMD As New OleDbCommand("INSERT INTO RESOURCE (userid,patientid,recordid,resourcefileimage) VALUES (?,?,?,?)", MyConnection)



Here is my error message;

Server Error in '/ImageRetreival' Application.
--------------------------------------------------------------------------------

Object reference not set to an instance of an object.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

Source Error:


Line 74:
Line 75: Private Sub btnInsert_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnInsert.Click
Line 76: Dim imgStream As Stream = fUpLoadImage.PostedFile.InputStream()
Line 77: Dim imgName As String
Line 78: Dim imgContentType As String


Source File: c:\inetpub\wwwroot\ImageRetreival\default.aspx.vb Line: 76

Stack Trace:


[NullReferenceException: Object reference not set to an instance of an object.]
   ImageRetreival._default.btnInsert_Click(Object sender, EventArgs e) in c:\inetpub\wwwroot\ImageRetreival\default.aspx.vb: 76
   System.Web.UI.WebControls.Button.OnClick(EventArgs e)
   System.Web.UI.WebControls.Button.System.Web.UI.IPo stBackEventHandler.RaisePostBackEvent(String eventArgument)
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEve ntHandler sourceControl, String eventArgument)
   System.Web.UI.Page.RaisePostBackEvent(NameValueCol lection postData)
   System.Web.UI.Page.ProcessRequestMain()


Sanjeet

__________________
Sanjeet