Unable to view image on webserver from child (content) page

I have developed a web application on Visual studio with ASP.NET and C#.
I am using master and child pages
I am able to view the image when running the studio on the local server but not able to view it on the webserver from the child (content) page
On aspx page the code is
 <asp:Image ID="imgApplPhoto" runat="server" Height="125px" Width="124px" />
The code (c#) is
imgApplPhoto.ImageUrl = MapPath("~/App_UserPhotos/") + strtempfn;
I have seen the source in the webpage to identify the reason for non-display of image
  <img id="Main_imgApplPhoto" src="D:\HostingSpaces\suhitamc\oslersacademy.suhitam.com\wwwroot\App_UserPhotos\34_ppsphoto.jpg" style="height:125px;width:124px;" />
AS expected in master and content pages, the image id on the client page is changed Main_imgApplPhoto from its original id imgApplPhoto

I do not whether it makes a difference, in the web server, the web application is a sub-domain accessed with URL

http://www.oslersacademy.suhitam.com

One may wish to login using  credentials for a temporary user
user ID: student2
PW: student2
It is the first page after login i.e. userswitchboard.aspx

Can anyone resolve the issue?
Srinivas ManthaConsultant Anesthesiologist and Pain PhysicianAsked:
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Dave BaldwinFixer of ProblemsCommented:
An image link is one of the things that you shouldn't be using 'MapPath' for.  It generates an absolute path on the server and the web browser does not have access to that.  Try this...
imgApplPhoto.ImageUrl = "~/App_UserPhotos/" + strtempfn;

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Kamal KhaleefaInformation Security SpecialistCommented:
the image path should be like this

../App_UserPhotos/34_ppsphoto.jpg

and not the full path
also
make sure that the folder App_UserPhotos is exist in your project
emp.png
Srinivas ManthaConsultant Anesthesiologist and Pain PhysicianAuthor Commented:
Thank you for prompt support
Dave BaldwinFixer of ProblemsCommented:
You're welcome.
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