Asp.net - Get Request.Form.Item By Matching Request.Form.Key?
Jul 6, 2010
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")
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Mar 29, 2012
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]...
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Aug 1, 2011
I have written a HTTP server in VB.NET but I don't know how to use the Request.Form() method on a windows application. I need it to read HTML data sent in a HTML form.
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Oct 7, 2010
I hope this is in the right category. If its not, direct me for where it should go. I'm quite a, what you would call "noob" to visual basic. I'm trying to make a web-based (LOCAL ONLY) Tech Request system for my LOCAL machines (Only 1 noted for use). I want a login area (I think I know what to do for that.), a open request area, a OPENED requests area, a way to CLOSE requests (by staff only), and and started/not started field for staff to use.
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Oct 15, 2010
This seems really simple, but for some reason Im stumped.Im dynamically generating an HTML Select Box, lets call it myselect. Im creating this select box based on some database values Im generating an HTML Select Box.. almost like a string that Im just spitting out to the page. So it's never a control in the codebehind, just part of a string thats rendered as HTML by the browser. If I submit my form, and in my codebehind I perform:
Dim myVal as String = Request.Form("myselect")
That code will give me the VALUE of the myselect select box. How can I refer to this control to cast it as a System.Web.UI.HtmlControls.HtmlSelect control? Request.Form seems to give me the value, but I want to reference the object itself..
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Apr 3, 2009
I have a form that have many text fields and all are being validated, I also added the NiceEdit plugin to be able to format text in my text areas, but it is raising errors like:
A potentially dangerous Request.Form value was detected from the client Now I can simply go to the top of the page and in the page directive add ValidateRequest="false" but this will deprive me from all the validation that I really need, so how can I switch validation OFF for my text areas ???VB.net, ASP.net 3.5, VWD 2008 Express...
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Oct 29, 2011
I am trying to get values from a select multiple box like this but the breakpoint at 'For Each Item in box' is nothing, what am I doing wrong?
[Code]...
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May 5, 2009
When I use Request.Form("myInput") and the input field "myInput" is blank, I get a server error.
How do I handle this?
Is there a way to check if "myInput" has not been filled?
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Jul 30, 2011
How can one pass http get or post methods to a windows application? I require a webserver to send a get method to my windows form application that will querry a database then reply back to a webserverI'm developing a windows based search engine that searches a MySQL database. It receives a keyword from an SMS gateway software as a HTTP get request and should reply to the gateway software using the same HTTP request.This is my code. It is correctly searching the database but I don't know how to receive the get methods on the application however it's sending the messages to SMS gateway.
Private Sub bSend_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles bSend.Click
Dim request As HttpWebRequest
[code].....
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Feb 4, 2011
why I am getting the following error? I have debugging enabled.Server Error in '/' Application.A potentially dangerous Request.Form value was detected from the client (strContent="<p>test</p>").
Description: Request Validation has detected a potentially dangerous client input value, and processing of the request has been aborted. This value may indicate an attempt to compromise the security of your application, such as a cross-site scripting attack. You can disable request validation by setting validateRequest=false in the Page directive or in the configuration section. However, it is strongly recommended that your application explicitly check all inputs in this case.
Exception Details: System.Web.HttpRequestValidationException: A potentially dangerous Request.Form value was detected from the client (strContent="<p>
test</p>
").
Source Error: The source code that generated this unhandled exception can only be shown when compiled in debug mode. To enable this, please follow one of the below steps, then request the URL:
1. Add a "Debug=true" directive at the top of the file that generated the error. Example:
<%@ Page Language="C#" Debug="true" %>
or:
2) Add the following section to the configuration file of your application:
<configuration>
<system.web>
<compilation debug="true"/>
[code]....
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Jul 5, 2010
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?
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Nov 8, 2010
I use... $.post("/StoreHtml", { 'html': $("#txtHtml").val(), , function (data) { }); to store html user enters, but method above fails with an "A potentially dangerous Request.Form value was detected from the client". How do I encode the html before sending it? ... and how do I decode it in vb.net?
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Mar 17, 2010
I'm noticing this error more and more in my error logs. I've read through the questions here talking about this error, but they don't address what I would like to do (see below).
I'm considering three options, in the order of preference:
1) When submitting a form (I use formviews almost exclusively, if that helps), if potentially dangerous characters are detected, automatically strip them out and submit.
2) When submitting a form, if potentially dangerous characters are detected, alert the user and let them fix it before trying again.
3) After the exception is generated, deal with it and alert the user.
I'm hoping one of the first two options might be able to do somewhat globally...I know for the 3rd I'd have to alter a TON of Try-Catch blocks I already have in place. Doable, but labor intensive. I'd rather be proactive about it if at all possible and avoid the exception all together.
Perhaps one approach to #1 would be to write a block of code that could loop through all text entry fields in a formview, during the insert/update event, and strip the characters out. I'm ok with that, but I'd rather not have to heavily alter all my Insert/Update events to accomplish this. Or maybe I just create a different class to do the text checking/deleting, and only insert 1 line of code in each Insert/Update event. If anyone can come up with some example code of any of these approaches that would be a
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Sep 22, 2009
I used to use windwos.form.webbrowser along with cast of its activeXinstance to shdocvw's webbrwoser to get the newwindows event to force new windows in another tab instead of popup. also capture right click new window requests to another instance of browser in another tab but keeping the security context
[Code]...
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Sep 4, 2009
we are making our program in other computer it runs, without errors, but then when we transfer the program to another computer it has an error that says
An error occurred creating the form. See Exception.InnerException for details.The error is: Request for the permission of type
'System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
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Jan 5, 2011
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].....
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Jun 13, 2011
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)?
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May 25, 2012
Regarding my college project. i'm working on a sales system . i have a form which consist of all the following information( item code , item name , item price , quantity of item ) which is display using a data grid . data input by user using text box and all this information will be stored in a database(sales database) i'm using ms access 2007. the grand total will be displayed in a text box . and amount paid will be input in a text box too , my major problem now is how to i create a reciept that will have all this information of the purcase. i have a reciept button . what the next step ? i dont have any idea how to get the reciept done.
Imports System.Data.OleDb
Public Class Form5
Dim con As New OleDbConnection
[CODE].......................
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Nov 1, 2008
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.
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Apr 21, 2010
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?
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Mar 24, 2011
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.
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Oct 5, 2009
I 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.
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Sep 28, 2010
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'
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May 28, 2011
Exception Details: System.Web.HttpException: Request is not available in this context.[code]
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Mar 26, 2012
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...]
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Jun 2, 2009
I'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?
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Nov 14, 2009
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
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Aug 3, 2009
I 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?
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Jan 5, 2009
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]....
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Nov 29, 2011
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].....
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