Asp.net - Custom HttpHandler Error: Could Not Load Type 'FileProtectionHandler'
Jun 30, 2011
I am trying to implement a Custom HttpHandler (for the first time), I have been given a tutorial to follow but couldn't get it to work. I then found another tutorial but couldn't get that to work, they are both giving me the same error message.
The custom handler is to protect people from downloading certain file types, although i think the error is somekind of configuration problem as I can't get the website to work at all once I add the httpHandlers to the Web.Config file.
Description: An error occurred during the processing of a configuration file required to service this request. review the specific error details below and modify your configuration file appropriately.
Parser Error Message: Could not load type 'FileProtectionHandler'.
Source Error:
Line 47: </compilation>
Line 48: <httpHandlers>
[Code].....
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Feb 4, 2011
I'm still trying to follow this sample:
[URL]
Under Visual Studio it's working fine but, when I try to publish on IIS it doesn't works. This is the situation: under my Website I created a Upload.vb class under App_Code folder that implements IHttpHandler, IRequiresSessionState. On web.xml I wrote this rows:
<remove verb="POST,GET" path="Upload.axd"/>
<add verb="POST,GET" path="Upload.axd" type="Upload"/>
On Page.aspx I added this code:
<FlashUpload:FlashUpload ID="flashUpload" runat="server"
UploadPage="Upload.axd"
FileTypeDescription="Images" FileTypes="*.doc; *.xls; *.pdf; *.docx; *.xlsx"
UploadFileSizeLimit="0" TotalUploadSizeLimit="0" />
I followed the sample and my class has not namespace. I read on internet that this error happens when IIS is not able to find the class.
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Aug 17, 2011
I have a windows application created using Visual Studios 2005.I recently added a custom control - after I built it, I was able to see it on the toolbox and I placed it from there to my form. All was good till at some point, when I tried to go to the design view of my form that the control is on, I get this error: Could not load file or assembly 'acdbmgd, Version=17.2.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified. [code]I can still run my app and see the control that's on the form, but I'm wondering what this error means? If I rem out the code behind my custom control, I can then view the control on the page again when I design the form.
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Jun 21, 2011
I recently downloaded VB 2010 Express so i am quite new to the language, but i have worked with dark basic, which seems to b very similar.Anyway, my problem is that i cannot seem to correctly set out my array of a custom type/class. i am trying to create two arrays, one of available entities and another of selected entities of which the user selects the entities to be dealt with in irrelevant ways. i have creates a button (called test) which adds some entities to the available list and all the entities come back the same value but they shouldnt be as you'll c in the code. i have run the step into command a found that "available.item(#).Name = " will change all of the entity's names.As of current i am working with lists as the array kept asking for a 'new' statement but i couldnt figure out where to put it.[code]
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Jan 25, 2012
I'm trying to run a Visual Basic (4.0) program that has run on every flavor of Windows so far. Using Windows 7 I get the following error message:
Can't load (or register) custom control: 'comdlg32.ocx'
This file is in the same directories as it is in a WinXP machine where it runs just fine.
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Feb 3, 2011
I'm a newb to ASP.NET and I made an app in VS2010 using NET 4.0 (Working all fine in debug mode) I tried to host my app @ aspspider and I'm getting the following error: Parser Error Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately. Parser Error Message: Could not load type 'AuthStealerPanel._Default'. Source Error: Line 1: <%@ Page Language="vb" AutoEventWireup="false" CodeBehind="Default.aspx.vb" Inherits="AuthStealerPanel._Default" %> I also tried to rebuild the .dll and upload it to the /bin/ and application's root.
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Apr 13, 2011
i get this error
.:Error:.
Server Error in '/' Application.
--------------------------------------------------------------------------------
Parser Error
Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately.
[code]....
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Jun 10, 2010
I have been trying to solve a problem related to using RolesProviders in MVC.Basically I would like to an additional set of criteria to the roles table so that a user can switch roles based on what they are doing on the site.However as simple as it may sound its proving to be a nightmare. I cannot for love nor money come up with a solution. I have tried overloading the provider, creating extension methods (which never work with the Roles class) but finally I decided to simply create a reference to my own custom provider and just completely bypass the whole User, Roles class.Now I am getting a ridiculous error which states that I cannot cast MyProvider class to an instance of MyProvider class? All I am doing is calling the Roles.Provider method and casting its return value to my custom provider class (which inherits from RolesProvider). The asp.net forums are a waste of time since no one ever answers the questions and there are simply no examples of extending the Roles/Membership model without using SQL server.
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Apr 17, 2012
there is one search button to see the report on datagridview using year..so when the more items are there in database correspond it year(say 2012)... the above exception is thrown by filling the datgridview,the problem happens when it tries to connect with crystal report,it shows error...Remember that i face this problem only if there are more records in my database(exactly more than 100 rows)...when i delete few rows from the database,it works fine..I have created a table and added that table to a dataset,then assigned that table1 as datasource for crystal report
[Code]...
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Sep 3, 2009
there is one search button to see the report on datagridview using year..so when the more items are there in database correspond it year(say 2012)... the above exception is thrown by filling the datgridview,the problem happens when it tries to connect with crystal report,it shows error...Remember that i face this problem only if there are more records in my database(exactly more than 100 rows)...when i delete few rows from the database,it works fine..I have created a table and added that table to a dataset,then assigned that table1 as datasource for crystal report
Public Class crystalform1
Dim r As DataRow
Dim t As DataTable
[code]....
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Jun 13, 2011
I have a finished app that when built runs fine on my PC ... its when i try to use the app on another PC in the building here it doesnt seem to be working right at all and im also getting an error
[Code]....
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Dec 16, 2009
I have a dll application that has its own app.config file associated with it. It has custom sectiongroups, sections, element collections, etc. The application name is WireShopAutomation.dll, so the built config ends up as WireShopAutomation.dll.config.The problem is that I seem to be unable to open the section group. The error message is:
"Could not load type 'WireShopAutomation.cfgSectionGroup_WireShopMain' from assembly 'WireShopAutomation'"
It seems to find the config file, but not the class handler for the section group and possibly the assembly itself. The class handler for this is in the same project as the application itself.The configSections section of the app.config file is as follows:
<configSections>
<sectionGroup name="userSettings" type="System.Configuration.UserSettingsGroup, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" >
[code]....
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Nov 24, 2009
I just put all my aspx files on the local folder and made a website in IIS7. I added a virtual directory to it and then converted the virtual directory to application. The website loads properly but when i click the link that calls my application i get this error message.
Description: An error occurred during the parsing of a resource required to service this request. review the following specific parse error details and modify your source file appropriately.
Parser Error Message: Could not load type 'XXXX.xxxx'.
The error line in code is this -
Line 1: <%@ Master Language="VB" Inherits="_XXXX.xxxx" Codebehind="XXX.xx.vb" %>
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Aug 25, 2011
I've just finished installing VS2010 on my computer. I have a project I built in 2003 that I'm trying to open in 2010. It went through the conversion process and generated this error: System.SystemException - The type library importer encountered an error during type verification. Try importing without class members. : System.MissingMethodException - Method not found: 'Void
[Code]...
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Mar 24, 2010
Here's my Application_OnError event sink in global.asax.vb:
Sub Application_OnError(ByVal sender As Object, ByVal e As EventArgs)
Dim innerMostException As Exception = getInnerMostException(Me.Context.Error)
[code].....
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Jun 2, 2011
I'm creating a webhandler and want to include classes from another file. How do I do this?
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Feb 14, 2012
I just can't get it to work. I have an array of bytes, read from a png file. I'm trying to write a (very) simple HttpHandler to render the image:
context.Response.AddHeader("Content-Type", "image/png")
context.Response.BinaryWrite(bytes)
context.Response.End()
[Code].....
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Nov 30, 2009
We are trying to add SQL Reporting Services to a .Net 2.0 Web Application. SRS has been installed on the server successfully, but we get an error when we try to load a report or access the report manager:
Server Error in '/Reports' Application.Configuration Error Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately. Parser Error Message: Could not load file or assembly 'netGmrc' or one of its dependencies. The system cannot find the file specified.
The error is being coming from a line in the web.config where an httpHandler called Upload.axc is being added to the web application. The entire httpHandler section is listed below.
<httpHandlers>
<add verb="*" path="Upload.axd" type="netGmrc.Upload, netGmrc"/>
<remove verb="*" path="*.asmx"/>
[code]....
When we remove the Upload.axd handler from Web.Config, everything in SRS works fine. What is the proper way to have Reporting Services work along side the web application with this httphandler?
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Oct 3, 2011
I'm working on an uploader built with an HttpHandler. I would like to create a routine to handle all uncaught errors including content length error.
CODE:
It's critical that I handle any 404.13 (request exceeds request content length) error in the httphandler itself.
I would also like Page_Error to handle any uncaught exceptions but it never fires.
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Apr 27, 2012
I have a webform application. The page has a from which contains a set of textboxes and one ASP:FileUploader. A button called "Upload" will uploaded the file separately from saving the whole form. I set up a httpHandler to upload files in chunks, and it should be fired after user click "Upload". They only way I worked out is set the PostBackURL attribute in the "Upload" button. e.g.
[Code]...
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Apr 12, 2012
I have built working VB.net code that uploads multiple images to the server using Plupload. I am using an HTTPHandler (FileUpload.ashx) to do the uplading and want to add a SQL Statement that will insert each of the images File Names to my SQL Database. I have tried just adding the SQL to the Handler, but when I do I get 4 database entries for each iamge that is uploaded.
Pertainant HANDLER code:
Public Sub ProcessRequest(ByVal context As HttpContext) Implements IHttpHandler.ProcessRequest
[Code].....
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Jun 9, 2011
I would like to be able to return the text generated from an httphandler and insert it into my web page during an onload event. There are examples that show how to return an image by setting the image source to the path of the handler. But how do you do this for just text as in the "hello world" basic template. I would like the text value of a label on my page to be set to "hello world", preferably withour using javascript.
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May 25, 2011
I now have SQL Parameters set up and I'm using them to save/delete/add my data. This all works well, except when it's trying to save a combobox to the datatable it appears with the error above.Majority of my comboboxes have datasources, and the valuemembers of these are the actual list items, not the ID's of the list items.I'm not sure why this error could be happening, I'm fairly sure I've connected everything to the binding source correctly; I've checked it a few times.Does anybody know what the cause of this could be? I've looked around a bit and I haven't found much
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Mar 1, 2012
I've spent quite a bit of time reading up on generics, covariance, etc., and I am failing to understand why I get the aforementioned compiler error in this type of codeLet's say I have a base "Bill" class made up of a collection of Lines..
Public Class Bill(Of L As Line)
Private _lines As List(Of L)
Public Property Lines() As List(Of L)
[code].....
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May 24, 2011
I can't cast my objects. I get: "Unable to cast object of type 'ClassA' to type 'ClassB'".
The service Class:
Public Class svc_Insp
Implements Isvc_Insp
Public Function Test(ByVal pm_income As ClassC) As String Implements Isvc_Insp.Test
[code]....
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Oct 10, 2010
I'm getting the error "Conversion from type 'DBNull' to type 'Date' is not valid."here's the line generating the error.
dtReady.Value = dSet.Tables("Db").Rows(Inc).Item("Fixed_Date")
I'm using a date/time picker control and sending the db value to it. I know that the value is null, but I don't understand why the Picker can't be blank. Is there a way to let it be blank? Or should I set up a way to check for nulls and assign today's date or something just in case?
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Jun 15, 2009
how can I solve this error without having to fill all of my fields. Some of the fields in my database are Nulls and some have records.
Error: Conversion from type 'DBNull' to type 'String' is not valid.
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Dec 22, 2010
I have a series of API calls that are returning J# data types. I have been able to convert most of the data types (Integer, Boolean, Double, Float, etc) just fine.What I need to do now is convert a java.Util.Collection to a VB .NET collection (ArrayList)
Here is my attempt:
Public Function MakeDotNETCollection(ByVal javaCol As java.util.Collection) As Collection
Dim dotNetCol As Collection
[code]....
I keep getting a runtime error "Unable to cast object of type 'AbstractListlistIterator' to type 'System.Collections.IEnumerator.
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Feb 24, 2012
I am using a background worker and am attempting to use the following code. However I keep getting this error on i "Unable to cast object of type 'ObjectCollection' to type 'System.Array'."
Private Sub btnVerify_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnVerify.Click
myArray = listProxies.Items()
BackgroundWorker1.RunWorkerAsync()
End Sub
[code]....
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Aug 9, 2010
I've created a custom control in VB.NET on .Net 3.5, in VS2008, which contains a load of custom properties, including RSS feed address, proxy address and proxy port.This control is an RSS ticker, which works really nicely, but doesn't initially run at all, and from stepping through my code, this is because none of my properties are being passed data from the containing form, until after the control has been initialised, and the code behind the control has run. The code (relevant bits) looks as follows:[code]
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