ASP. NET encountered "system. unauthorizedaccessexception: Access Denied" when operating the Excel component ." Solution

Access denied.

Note:An error occurred while executing the current Web request. Check the stack trace information to learn about this error andCodeDetailed information about the cause of the error.

Exception details:System. unauthorizedaccessexception: access is denied.

ASP. NET is not authorized to access the requested resources. Consider granting the ASP. NET Request identity the permission to access this resource. ASP. NET has an applicationProgramNo base process ID used for simulation (usually {MACHINE} \ ASPnet on IIS 5 and Network Service on IIS 6 ). If the application is simulating through <identity impersonate = "true"/>, the identity will be an anonymous user (usually IUSR_machinename) or an authenticated user.

To grant ASP. NET write access to a file, right-click the file in resource manager, select "properties", and select the "Security" tab. Click Add to add an appropriate user or group. Highlight the ASP. NET account and select the corresponding access permission box.

Source error:

Row 62: Row 63: excel. Application APP = new excel. Application ();

. Net framework1.1 + Windows2003 (IIS6)

Solution: in the web. config file, add:
<Identity impersonate = "true"/>

The. NET documents are described as follows:

Attribute	Option	Description
Impersonate		Specifies whether to use the client for each request .

Well, then run it again.