system.IO.File.Exists doesn't working for file that is outside my virtual directory

[Max]

hi

i have file browser control to select any file and a button to upload
file on my web page now when i select any file. now on click of upload
button i have check that file exist or no

if system.IO.File. Exist(file path) then
....
end if
now when ever i choose file system.IO.File. Exist(file path) return
false, but if i select file from my virtual directory then only it
return true.

so how to select file from any folder on my PC and chech that it exist
or not

[Kevin Spencer]

Re: system.IO.File. Exists doesn't working for file that is outside my virtual directory

It all depends on what the value of "file path" is. Perhaps you could give
us an example of a "file path" that is not found?

--
HTH,

Kevin Spencer
Microsoft MVP
Chicken Salad Surgery

Accept the Unexpected.

"Max" <mahesh.anjani@ gmail.comwrote in message
news:1155221942 .579024.234910@ b28g2000cwb.goo glegroups.com.. .

hi
>
i have file browser control to select any file and a button to upload
file on my web page now when i select any file. now on click of upload
button i have check that file exist or no
>
if system.IO.File. Exist(file path) then
...
end if
now when ever i choose file system.IO.File. Exist(file path) return
false, but if i select file from my virtual directory then only it
return true.
>
so how to select file from any folder on my PC and chech that it exist
or not
>

[Reg Edit]

Re: system.IO.File. Exists doesn't working for file that is outside my virtual directory

Sounds like you would need to use Server.MapPath - are you using it?

http://support.microsoft.com/default.aspx?scid=kb;en-us;323245

[Max]

Re: system.IO.File. Exists doesn't working for file that is outside my virtual directory

followin is on of the file that gives error

Server Error in '/' Application.
--------------------------------------------------------------------------------

Access to the path
"L:\Webhosting\ home.gujarat.go v.in\homeapps\i magefiles\image s.jpg" is
denied.
Description: An unhandled exception occurred during the execution of
the current web request. Please review the stack trace for more
information about the error and where it originated in the code.

Exception Details: System.Unauthor izedAccessExcep tion: Access to the
path "L:\Webhosting\ home.gujarat.go v.in\homeapps\i magefiles\image s.jpg"
is denied.

ASP.NET is not authorized to access the requested resource. Consider
granting access rights to the resource to the ASP.NET request identity.
ASP.NET has a base process identity (typically {MACHINE}\ASPNE T on IIS
5 or Network Service on IIS 6) that is used if the application is not
impersonating. If the application is impersonating via <identity
impersonate="tr ue"/>, the identity will be the anonymous user
(typically IUSR_MACHINENAM E) or the authenticated request user.

To grant ASP.NET write access to a file, right-click the file in
Explorer, choose "Properties " and select the Security tab. Click "Add"
to add the appropriate user or group. Highlight the ASP.NET account,
and check the boxes for the desired access.

Source Error:

An unhandled exception was generated during the execution of the
current web request. Information regarding the origin and location of
the exception can be identified using the exception stack trace below.


Stack Trace:


[UnauthorizedAcc essException: Access to the path
"L:\Webhosting\ home.gujarat.go v.in\homeapps\i magefiles\image s.jpg" is
denied.]
System.IO.__Err or.WinIOError(I nt32 errorCode, String str) +393
System.IO.File. Delete(String path) +165
CMSAPPS.mas_WMK D_entry.Save_AD D() in
D:\dnSource\HOM EAPPS_mahesh\ma s_WMKD_entry.as px.vb:248
CMSAPPS.mas_WMK D_entry.bttn_Sa ve_Click(Object sender, EventArgs e)
in D:\dnSource\HOM EAPPS_mahesh\ma s_WMKD_entry.as px.vb:221
System.Web.UI.W ebControls.Butt on.OnClick(Even tArgs e) +108

System.Web.UI.W ebControls.Butt on.System.Web.U I.IPostBackEven tHandler.RaiseP ostBackEvent(St ring
eventArgument) +57
System.Web.UI.P age.RaisePostBa ckEvent(IPostBa ckEventHandler
sourceControl, String eventArgument) +18
System.Web.UI.P age.RaisePostBa ckEvent(NameVal ueCollection postData)
+33
System.Web.UI.P age.ProcessRequ estMain() +1292

[Max]

Re: system.IO.File. Exists doesn't working for file that is outside my virtual directory


Reg Edit wrote:

Sounds like you would need to use Server.MapPath - are you using it?
>
http://support.microsoft.com/default...b;en-us;323245

i have used server.mappath following is my code

If file.Exists(Ser ver.MapPath("im agefiles/") & Session("upload img"))
Then
img = file.OpenRead(S erver.MapPath(" imagefiles/") &
Session("upload img"))
ReDim byteArr(img.Len gth)
img.Read(byteAr r, 0,
System.Convert. ToInt32(img.Len gth))
img.Close()
end if

[Ken Cox [Microsoft MVP]]

Re: system.IO.File. Exists doesn't working for file that is outside my virtual directory

That's caused by the security settings that prevent subscribers of one web
from poking around in the code of another web. Is it an ISP's server?

"Max" <mahesh.anjani@ gmail.comwrote in message
news:1155306104 .384207.320410@ i3g2000cwc.goog legroups.com...

followin is on of the file that gives error
>
Server Error in '/' Application.
--------------------------------------------------------------------------------
>
Access to the path
"L:\Webhosting\ home.gujarat.go v.in\homeapps\i magefiles\image s.jpg" is
denied.
Description: An unhandled exception occurred during the execution of
the current web request. Please review the stack trace for more
information about the error and where it originated in the code.
>
Exception Details: System.Unauthor izedAccessExcep tion: Access to the
path "L:\Webhosting\ home.gujarat.go v.in\homeapps\i magefiles\image s.jpg"
is denied.
>
ASP.NET is not authorized to access the requested resource. Consider
granting access rights to the resource to the ASP.NET request identity.
ASP.NET has a base process identity (typically {MACHINE}\ASPNE T on IIS
5 or Network Service on IIS 6) that is used if the application is not
impersonating. If the application is impersonating via <identity
impersonate="tr ue"/>, the identity will be the anonymous user
(typically IUSR_MACHINENAM E) or the authenticated request user.
>
To grant ASP.NET write access to a file, right-click the file in
Explorer, choose "Properties " and select the Security tab. Click "Add"
to add the appropriate user or group. Highlight the ASP.NET account,
and check the boxes for the desired access.
>
Source Error:
>
An unhandled exception was generated during the execution of the
current web request. Information regarding the origin and location of
the exception can be identified using the exception stack trace below.
>
>
Stack Trace:
>
>
[UnauthorizedAcc essException: Access to the path
"L:\Webhosting\ home.gujarat.go v.in\homeapps\i magefiles\image s.jpg" is
denied.]
System.IO.__Err or.WinIOError(I nt32 errorCode, String str) +393
System.IO.File. Delete(String path) +165
CMSAPPS.mas_WMK D_entry.Save_AD D() in
D:\dnSource\HOM EAPPS_mahesh\ma s_WMKD_entry.as px.vb:248
CMSAPPS.mas_WMK D_entry.bttn_Sa ve_Click(Object sender, EventArgs e)
in D:\dnSource\HOM EAPPS_mahesh\ma s_WMKD_entry.as px.vb:221
System.Web.UI.W ebControls.Butt on.OnClick(Even tArgs e) +108
>
System.Web.UI.W ebControls.Butt on.System.Web.U I.IPostBackEven tHandler.RaiseP ostBackEvent(St ring
eventArgument) +57
System.Web.UI.P age.RaisePostBa ckEvent(IPostBa ckEventHandler
sourceControl, String eventArgument) +18
System.Web.UI.P age.RaisePostBa ckEvent(NameVal ueCollection postData)
+33
System.Web.UI.P age.ProcessRequ estMain() +1292
>