Request Is Not Available In Context
May 28, 2011Exception Details: System.Web.HttpException: Request is not available in this context.[code]
View 3 RepliesException Details: System.Web.HttpException: Request is not available in this context.[code]
View 3 RepliesWhen bulk renaming files (14000 of them) i get this error: The CLR has been unable to transition from COM context 0x4cefd8 to COM context 0x4cf148 for 60 seconds. The thread that owns the destination context/apartment is most likely either doing a non pumping wait or processing a very long running operation without pumping Windows messages. This situation generally has a negative performance impact and may even lead to the application becoming non responsive or memory usage accumulating continually over time. To avoid this problem, all single threaded apartment (STA) threads should use pumping wait primitives (such as CoWaitForMultipleHandles) and routinely pump messages during long running operations.
My code is as follows:
Private Sub frmTest_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim asd As List(Of String) = FileIO.FileSystem.GetFiles("D:Music").ToList
Dim rs As New ADODB.RecordSet("SELECT * FROM Songs", My.Settings.Files_Database__Connection)
[code].....
I have recently started using Request("key") instead of Request.QueryString("key") to access my querystring values. However I have read that:
'Gets the specified object from the System.Web.HttpRequest.Cookies, System.Web.HttpRequest.Form, System.Web.HttpRequest.QueryString, System.Web.HttpRequest.ServerVariables'
Therefore, if I have a querystring key and cookie key which are the same, which value is returned?
I got this message because of a long process: ContextSwitchDeadlock was detected
Message: The CLR has been unable to transition from COM context 0x3dc190 to COM context 0x3dc300 for 60 seconds. The thread that owns the destination context/apartment is most likely either doing a non pumping wait or processing a very long running operation without pumping Windows messages. This situation generally has a negative performance impact and may even lead to the application becoming non responsive or memory usage accumulating continually over time.
To avoid this problem, all single threaded apartment (STA) threads should use pumping wait primitives (such as CoWaitForMultipleHandles) and routinely pump messages during long running operations. I've poked around on the internet and on a forum, someone suggested to use application.doevents(). I did that and the messaged goes away. In an earlier thread a member wrote that using application.doevents rarely was used appropriately. Is my situation a proper usage of application.doevents or is there something else I should be doing?
Im trying to send data from a Windows Form to an aspx page and send back a response. Im running around in circles trying to make this work. The data im trying to send is 4 strings. So fare I have this in my code, using the build-in webclient in visual studio 2010, in the windows form sending to the aspx
[Code]...
I have recently started using Request("key") instead of Request.QueryString("key") to access my querystring values. However I have read that:
'Gets the specified object from the System.Web.HttpRequest.Cookies, System.Web.HttpRequest.Form, System.Web.HttpRequest.QueryString, System.Web.HttpRequest.ServerVariables'
[code].....
VB express 2008 .net 3.5 or .net 4.0 VB express 2010?I have written application to convert RTF to HTML. The main Purpose of the application is to copy VS code to the clipboard and covert it then put it back into the clipboard as a HTML Document so that it can be pasted into a HTML document such as Windows Live Mail. I found that code copied and pasted is spaced out in in the wrong positions.
The applications works perfect with no bugs so far. I then asked Myself how to go about doing the copy with the least amount of operator interaction. So I added an Icon to the Icon Tray with a right click menu to use to convert once the Rich Text Format was copied to the clipboard. This works fine except you have Five steps, Select the text, Copy to clipboard, Right Click the icon, Select the Converter and Paste. The normal is three steps.
To this the best solution is to add a context menu item to the active form such as the RTF editor or window. So that when you select the Rich Text to copy and right click on the form to bring up that menu then to Just Select the menu Item such as "Copy RT and Convert" I searched and found about 544000 Items and tried to restrict down to no avail. I read until I finally gave up. I did not find any code examples of this. Almost every thing I found related to the web or some other explicit document like Excel and not to the Various windows that could be active with RT in it.
how do you add a context menu item to the context menu of an active rich text format window such as WordPad or VB?I have test in my application that tests to see if it is a RTF in the clipboard so if it is not the converter does nothing.
Imports System.Threading
Imports System.IO
Imports System
[code]....
My Request.Form keys are all prefixed with ctl00$container name$ and then the key I want.How can I get the regular key name working?
Visual example from the immediate window:I want to use:
? request.Form.Item("stationIdea")
but it won't work because the key is:
ctl00$content_innovation_body$stationIdea
as retrieved by
? request.Form.Keys("4")
so only this works:
? request.Form("ctl00$content_innovation_body$stationIdea")
I have to send a request to Webservice and I have a working PHP solution, that I have to translate in VB.net
Here's the code working in PHP
//fill in the details of the contacts.userId is obtained from loginResult.
$contactData = array('lastname'=>'Valiant', 'assigned_user_id'=>$userId);
//encode the object in JSON format to communicate with the server.
[code]....
Naturally I imported a reference to a Json library and Imported (Imports Newtonsoft.Json)?
i have created one script in vb.net which request webpage from server and parse it. initially Application making request to server and server response it too properly .But after making around 80 to 85 request i got following error in my code.
Code:
ex = {"The remote server returned an error: (400) Bad Request."}
But i am able to access all webpage more than 85 if i use browser.
Ok, Can i use, a if statement in VB net?
Like If (textbox1.text = ("Username")) && (textbox2.text = ("Password")); Make form blank or open another form?
I want to make two request to submit a form of another web application. How can I create post and get request. And how can I use secure this.PS. I don't want to create ajax request. Just httpwebrequest.
View 1 RepliesI am using VB.NET
My problem is that, I have got below request.querystring
http:[url]......Now I want to pass all the above three querystring in a sql stored procedure parameter.for example,
Try
Dim conString As String = WebConfigurationManager.ConnectionStrings("LocalSqlServer").ConnectionString
Dim con As New SqlConnection(conString)[code]....
But I am able to get the request querystring value in my parameter.
I am building an app where i need to request user name and enter it into the database along with some other fields.
Is there an easy way to request a username using vb.net?
ie username = 'Home/JimJones'
I'm attempting to login to a cPanel using a POST Request in VB.Net. I have the correct credentials when logging in and when posting I still get an 'Unauthorized (401)' response when it should be '301' (analysed using Tamper Data Firefox Add-On). Below is my post request information and function.[code...]
View 1 RepliesI'm attempting to update a legacy VB6 component (not written by me) to the .NET platform. There is one function which posts an XML string to a URL:
Function PostToUrl(ByRef psUrl, ByRef psData, Byref psResponseText, ByRef psErrorMsg, ByRef psUsername, ByRef psPassword)
On Error Resume Next
Dim objWinHTTP
[CODE]...
I've updated this to:
Public Function PostXml(ByVal XML As String) As Boolean
Try
Dim URL As String = My.Settings.NTSPostURL
'TODO: supply username and password! '
[CODE]...
However when I run the .NET code the server returns the error '403 Forbidden - protocol error' on the line: Using Response As HttpWebResponse = DirectCas (HTTPRequest.GetResponse(), HttpWebResponse). The VB6 code runs fine. identify any discrepancies between the two that might be causing this?
I have an ASP.net page which has fields for filtering a dataset. When I apply the filter (through a button), the results load fine. If I navigate to another page (on the same session), and then come back to the page, I'm re-setting the value of the filter fields on page load
View 9 RepliesI need to get the host out of the Request object. Which property should I use and why?
From MSDN:Uri.DnsSafeHost Property A String that contains the unescaped host part of the URI that is suitable for DNS resolution; or the original unescaped host string, if it is already suitable for resolution.
vs
Uri.Host Property A String that contains the host name. This is usually the DNS host name or IP address of the server.
My testing has been with the ASP.NET Development Server. Both of these always return localhost. Even when I put in 127.0.0.1, both return localhost.Reading on, the DnsSafeHost property will handle IPv6 addresses, as well as Unicode to ASCII conversion if needed. It can also account for IRI and IDN. Even though I currently don't care about these things, should I just use the DnsSafeHost property to be safe?
I am writing a program to try and centralise alot of data i have on my network so i can use them as templates and guides. My intension was to have an easy to browse program with links in the program which open the particular file (eg. Word document, excel spreadsheet, pdf file etc).I have very limited programming knowledge and in my research i came across this code in VB which allows the program to open the determined file:
Public Class _010101ProgramTemplate
Dim procstart As New ProcessStartInfo("explorer")
Private Sub btnProgTemp01_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnProgTemp01.Click
Dim winDirProgTemp01 As String = System.IO.Path.GetDirectoryName("g:Project Management SystemPMS TemplatesSetupProgramDD-IFC PROGRAM.xls")
[code]....
I cant grab the whole response because it is 200 MB- what can I do to JUST GET THE URLHere is my code:
Dim request1 As HttpWebRequest = DirectCast(HttpWebRequest.Create(urlvimeohd), HttpWebRequest)
request1.UserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.1 (KHTML, like
[code].....
I am using visual studio 8, using vb.net. I am trying without success to make a post request to a web form as shown below.
[Code]....
I dont think that I am posting the right information. Am i supposed to post just the information or do I post the the tags and the information/
In my page URL, there is a property taskgrpid - In my code I would like to use the value as an integer. Listed below is the URL from the page and here is my request for the string
View 1 RepliesWorking on a program that makes use of a third party API. That API can be found here:[URL]I'm a beginning/intermediate VB.Net developer, and have written other programs, but not using something like this. I suspect I'll need to create a Web.Request (Secure) object and 'POST' to the URL with a stream of XML text. That's the general idea, right? The actual URL is internal to our network and I have that information of course.
View 9 RepliesI have this code to make a Request to my ftpserver
Imports System.Net
Imports System.IO
Module Module1
Sub Main()
[Code]...
I found the below sample to retrieve webpages. I need to request a lot of pages from the same website which requires authentication. Because there are a lot of pages to retieve I like to speed up the requests and like to avaoid to send the credentials and also the certificate. Is it somehow possible to stay connected?
[Code]...
Is it possible to create a request password on a combo box? Ideally I would like to create a number pad which comes up and prompts the user to enter thier password once they try to edit the data in the combo box?
View 2 RepliesI,m creating a website that checks to see if the User's browser supports png images at startup.I found this Script in Javascript:
function CheckBrowser()
{
[code].....
When I try to do the following:
Dim Request As Net.WebRequest
Dim Response As System.Net.WebResponse
Dim Reader As System.IO.StreamReader
[code].....
I need to send a cookie along with every GET request in VB.NET? I already searched for codes but I can't find something that works for me. Can someone give me a simple code to do this?
View 1 RepliesI am developing an application in VS2008, SQL SERVER 2005 , VB Script .There is a portion where I need to send a request through API for a responce. It is working , the response is coming as JSON fomat.
I need the simplest way to change the JSON response to an array.as in PHP: json_decode($bad_json)
I have used Newtonsoft.Json but did not help. Throws exception while runtime.
Anything else what to do. Kindly help me. I can explain more if its not clear.