Hi,
I have to display a logo in crystal report in runtime. I have tried two solutions given in
http://www.devx.com/codemag/Article/33658/1954 (Tip 6: Better Handling of Dynamic Images)
Dim data As New DataSet()
Dim row As DataRow
Step1 (Passing Image URL into dataset): my code is as follows
Private Sub LoadImgUrl()
Try
data.Tables.Add("Image")
data.Tables("Image").Columns.Add("Name")
row = data.Tables(0).NewRow()
row(0) = Server.MapPath("DI.bmp")
data.Tables(0).Rows.Add(row)
rptDoc.Load(Server.MapPath("rptImgUrl.rpt"))
rptDoc.SetDataSource(data)
Response.Clear()
Response.Buffer = True
Response.ClearContent()
Response.ClearHeaders()
Response.ContentType = "application/pdf"
rptDoc.ExportToHttpResponse(CrystalDecisions.Shared.ExportFormatType.PortableDocFormat, Response, False, "")
Response.Flush()
Response.End()
Catch ex As Exception
End Try
End Sub
--------------
Step2 (Storing Image into dataset): my code is as follows
Private Sub LoadImgDS()
Try
data.Tables.Add("Image")
data.Tables("Image").Columns.Add("Logo", System.Type.GetType("System.Byte[]"))
Dim fs As New System.IO.FileStream(Server.MapPath("DI.bmp"), System.IO.FileMode.Open, IO.FileAccess.Read)
Dim br As New System.IO.BinaryReader(fs)
row = data.Tables("Image").NewRow()
row("Logo") = br.ReadBytes(br.BaseStream.Length)
data.Tables("Image").Rows.Add(row)
rptDoc.Load(Server.MapPath("rptImgDS.rpt"))
rptDoc.SetDataSource(data)
Response.Clear()
Response.Buffer = True
Response.ClearContent()
Response.ClearHeaders()
Response.ContentType = "application/pdf"
rptDoc.ExportToHttpResponse(CrystalDecisions.Shared.ExportFormatType.PortableDocFormat, Response, False, "")
br.Close()
fs.Close()
br = Nothing
fs = Nothing
Catch ex As Exception
End Try
End Sub
--------
In both case i am getting error "cannot obtain value" in following line:
rptDoc.ExportToHttpResponse(CrystalDecisions.Shared.ExportFormatType.PortableDocFormat, Response, False, "")
Need help to solve this. Its very urgent.
Thanks
