Thanks for your reply.
This is on my html side
<body>
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server" />
<div>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate >
<asp:FileUpload ID="FileUpload1" runat="server" />
<asp:Button ID="Button1" runat="server" Text="Upload"
OnClick="Button1_Click" />
</ContentTemplate>
</asp:UpdatePanel>
</div>
</form>
</body>
On coding side I write just one line
Protected Sub Btnupload_Click(ByVal sender As Object, ByVal e As System.EventArgs)
FileUpload1.PostedFile.SaveAs(Server.MapPath("./") & "uploadimg.jpg")
End Sub
Error is :-
Object Reference Not Set to an instance of object.
I know this is very small error .We can over come this error by creating Instance to that object By using 'New' keyword.
At this time i'm feeling difficulty.
Help me.
Fileupload in Ajax
Linear Mode
