FileUpload and UpdatePanel: FileUpload.HasFile is always FALSE.
Feb 15, 2010 10:48 AM|VansFannel|LINK
Hello.
I'm developing an ASP.NET application with C# and Visual Studio 2008 SP1. I'm using WebForms. Dark souls save editor v3.0.7.0 download.
I have an ASPX page with two UpdatePanels, one on the left that holds a TreeView and other on the right where I load dynamically user controls.
One user control, that I used on right panel, has a FileUpload control and a button to save that file on server. The ascx code to save control is:
Asp File Upload Code
![Upload Upload](https://www.aspsnippets.com/Handlers/DownloadFile.ashx?File=841f6faf-1eb9-41e3-9504-1b48d9a93bae.png)
<asp:UpdatePanel runat='server' RenderMode='Inline'
UpdateMode='Conditional'>
<ContentTemplate>
<asp:Button runat='server' Text='Guardar'
CssClass='button' />
</ContentTemplate>
<Triggers>
<asp:PostBackTrigger ControlID='Save' />
</Triggers>
</asp:UpdatePanel>
I make a full postback to upload the file to the server and save it to database. Windows server 2008 r2 remote desktop license crack. But I always getting False on FileUpload.HasFile.
I problem is the right UpdatePanel. I need it to load dynamically the user controls. This panel has three UpdatePanels to load the three user controls that I use.
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Maybe I can use an Async File Uploader or delete the right Update Panel and do a full postback to load controls dynamically.
Any advice?
Thank you.
Why Posted File is NULL and HasFile is false when FileUpload is inside AJAX UpdatePanel in ASP.Net
Here Mudassar Ahmed Khan has explained why are the FileUpload control properties PostedFile is NULL and HasFile is false when FileUpload control is placed inside ASP.Net AJAX UpdatePanel.
This happens because FileUpload control does not work with partial PostBack which is done in UpdatePanel. FileUpload control requires a full PostBack.
Hence when you place FileUpload control in AJAX UpdatePanel and try to upload the file asynchronously using the PostedFile property is always NULL and the HasFile property is always false.
Asp Net File Upload Control Hasfile Always False
Upload File Asp Net Core
![File File](https://www.talkingdotnet.com/wp-content/uploads/2017/11/Export-excel-in-ASP.NET-Core-2.0-Razor-Pages.gif)