C# - Dynamic Inheritance Using A Factory?
Oct 11, 2010
I think I know the answer to this but hoping someone has a neat solution. We are currently using two kinds of drop down controls (telerik and .net). I'm hoping to combine these into one control but struggling with a user friendly design.
Ideally the control would be created in the design file with a bool property of say "SimpleBox", to determine which kind of control to inherit. The instantiation would then be generated in the code behind design file and the constructor would then dynamically load the base (which isn't possible). The easy solution would be for me to create a IDropDown interface then have a factory create the correct one. The only real problem with this is the fact the instantiation has to be manually written every time. Which is a hassle, and does not speed up our process at all.
Although it isn't directly possible i'm looking for a solution along the lines of a factory which is ran inside the object constructor for setting the base, based on a bool property.
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Jul 17, 2010
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Feb 22, 2011
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Retrieving the COM class factory for component with CLSID {00024500-0000-0000-C000-000000000046} failed due to the following error: 80040154.
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.Runtime.InteropServices.COMException: Retrieving the COM class factory for component with CLSID {00024500-0000-0000-C000-000000000046} failed due to the following error: 80040154.
Source Error:
Line 499: object misValue = System.Reflection.Missing.Value;
Line 500:
Line 501: xlApp = new Excel.ApplicationClass();
Line 502: xlWorkBook = xlApp.Workbooks.Add(misValue);
Line 503: xlWorkSheet = (Excel.Worksheet)xlWorkBook.Worksheets.get_Item(1);
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Jan 16, 2014
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Jul 30, 2010
I am facing one problem that when i try to access a page in the website, i am getting the following error,
Retrieving the COM class factory for component with CLSID {58A02778-16FC-423D-91AC-4619BD71257F} failed due to the following error: 80040154.
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.Runtime.InteropServices.COMException: Retrieving the COM class factory for component with CLSID {58A02778-16FC-423D-91AC-4619BD71257F} failed due to the following error: 80040154.
Source Error:
[Code]....
Source File:
d:IEL_HELPDESKIEL-HelpDeskIELHelpDeskl_ticket_approval.aspx.cs
Line: 23 Stack Trace:
[Code]....
I went to that particular class file which is in the form of dll and in codebehind page of that class , builded the application, but it is not showing any compile time errors, but i put a break point it fails.
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Jun 8, 2010
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Retrieving the COM class factory for component with CLSID
{11BD5260-15B6-412D-80DB-12BB60B8FE50} failed due to the following error: 80070005. 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.UnauthorizedAccessException: Retrieving the COM class factory for component with CLSID {11BD5260-15B6-412D-80DB-12BB60B8FE50} failed due to the following error: 80070005.
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}ASPNET 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="true"/>, the identity will be the anonymous user (typically IUSR_MACHINENAME) or the authenticated request user.
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Feb 15, 2011
[Code]....
While trying execute the above code in server, I am getting COM class factory error, as mentioned below
System.Runtime.InteropServices.COMException (0x80040154): Retrieving the COM class factory for component with CLSID {91493441-5A91-11CF-8700-00AA0060263B} failed due to the following error: 80040154.
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My Crystal Reports works perfectly when I have it on my local host, once I upload it to the server I get the error listed below. I ran the following MSI on the dedicated server: CRRedist2008_x86.msi.. If it is a permission issue, I am using Plesk Panel so there is no ASPNET user, it is different users, what user and what specific folder do I have to give permissions to? Retrieving the COM class factory for component with CLSID {5FF57840-5172-4482-9CA3-541C7878AE0F} failed due to the following error: 80070005.
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.UnauthorizedAccessException: Retrieving the COM class factory for component with CLSID {5FF57840-5172-4482-9CA3-541C7878AE0F} failed due to the following error: 80070005.
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When people talk about extending a control are they just talking about inheritance?
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Inherits="System.Web.Mvc.ViewPage<List<GEApproval.Models.CoursePrefix>>"
But I also want to include the table Course as follows:
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I went ahead and created a composite class as follows:
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{
public class Listings: GEApproval.Models.CoursePrefix, GEApproval.Models.ICourse
{
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public List<Course> CourseObjList { get; set; }
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{
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}
}
}
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Jul 6, 2010
I am facing below error
"Retrieving the COM class factory for component with CLSID {00024500-0000-0000-C000-000000000046} failed due to the following error: 80070005."
"at WebApplication1._Default.GenerateExcel(String xmlString) in E:\TestWebApp\WebApplication1\WebApplication1\Default.aspx.cs:line 110
at WebApplication1._Default.Page_Load(Object sender, EventArgs e) in E:\TestWebApp\WebApplication1\WebApplication1\Default.aspx.cs:line 30
at System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e)
at System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e)
at System.Web.UI.Control.OnLoad(EventArgs e)
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)"
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