I have problem with ajax manager :
JavaScript:
I used this function to allow me download a file from gridview
- function onRequestStart(sender, args)
- {
- if (args.get_eventTarget().indexOf("imgDownload") >= 0)
- args.set_enableAjax(false);
- }
My Ajax Manager:
My GridView Where I The button for download exist:
- CommandName="download_file" Height="22px" Width="22px" ToolTip="Request Download"
- CommandArgument='<%# Eval("ID") %>' />
CodeBehind:
- Protected Sub AttachmentRadGridView_ItemCommand(sender As Object, e As GridCommandEventArgs) Handles AttachmentRadGridView.ItemCommand
- If e.CommandName = "download_file" Then
- Dim ditem As GridDataItem = CType(e.Item, GridDataItem)
- Dim AttachID As Long = CLng(ditem("ID").Text)
- DownloadFileAttachment(AttachID)
- End If
- End Sub
- Protected Sub DownloadFileAttachment(ByVal FileId As Long)
- 'Dim id As Integer = Integer.Parse(TryCast(sender, LinkButton).CommandArgument)
- Dim bytes As Byte()
- Dim fileName As String, contentType As String
- Dim constr As String = dbpath
- Using con As New SqlConnection(constr)
- Using cmd As New SqlCommand()
- cmd.CommandText = "select FileName, ImageData, FileType from FileStore where FileId=@FileId"
- cmd.Parameters.AddWithValue("@FileId", FileId)
- cmd.Connection = con
- con.Open()
- Using sdr As SqlDataReader = cmd.ExecuteReader()
- sdr.Read()
- bytes = DirectCast(sdr("ImageData"), Byte())
- contentType = sdr("FileType").ToString()
- fileName = sdr("FileName").ToString() & "." & contentType
- End Using
- con.Close()
- End Using
- End Using
- Dim path As String = MapPath("/Download/" & fileName)
- Response.Clear()
- Response.Buffer = True
- Response.Charset = ""
- Response.Cache.SetCacheability(HttpCacheability.NoCache)
- Response.ContentType = contentType
- Response.AppendHeader("Content-Disposition", "attachment; filename=" + fileName)
- Response.BinaryWrite(bytes)
- Response.Flush()
- Response.End()
- End Sub
Downloading file working well , but anything else stoped like filtering gridview ,sorting gridview and etc (look like ajax post back stoped)
how can I force ajax manager working again after downloading file ( after calling onRequestStart)
Please Help me
Thank in advance
Eyad ShahrouryPosted May 16, 2020, 1:53 PM
Vertika ChauhanPosted May 16, 2020, 12:43 PM
Salman BegPosted May 16, 2020, 11:03 AM