Use AsyncFileUpload in a grid view in update panel

Question

I want to use a AsyncFileUpload in a grid view and each record must have a AsyncFileUpload individually. In addition user must be able to upload his/her file for each record. Now how can i access AsyncFileUpload in the grid view and check it if it has a file or not? For common file upload i have used the below cod:

((FileUpload)GridView1.Rows[idx].Cells[0].FindControl("FileUpload1") as FileUpload).HasFile

However, it is not acceptable in this situation. Is there any way to access this Ajax controller in a grid view?

Answer 1

on your asyncfileupload bind OnUploadedComplete event to the method

OnUploadedComplete = "FileUploded"

code:

protected Sub FileUploded(object sender, EventArgs e)

    Dim fu AjaxControlToolkit.AsyncFileUpload

    Dim row As GridViewRow = CType(fu.NamingContainer, GridViewRow)
    Dim idx = row.RowIndex

    fu = ctype(sender,AjaxControlToolkit.AsyncFileUpload)
    If fu.HasFile then
    --do something--
    End If 
End Sub

c#:

protected void FileUploded(object sender, EventArgs e)
{
    AsyncFileUpload fu = (AjaxControlToolkit.AsyncFileUpload)sender;

    GridViewRow row = (GridViewRow)fu.NamingContainer;
    string idx = row.RowIndex.toString();       
}