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I'm running into a specific issue with my web.config when trying to serve XML files. As soon as I add this rule: <add name="XmlFile" path="*.xml" verb="GET,HEAD" ...
Mohammad Taha Moghaddasi's user avatar
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I am new to HTML, CSS and Javascript. I am building a website that has a shopping cart feature and I am able to list my products, and and remove to the shopping cart and have the UI update the ...
iOSProgrammingIsFun's user avatar
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2 answers
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I'm trying to call a simple static WebMethod in my ASP.NET Webforms page using jQuery Ajax, but it doesn't seem to be working. I've tried enabling anonymous authentication and other fixes suggested ...
Aswinth's user avatar
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I am looking for a freeware grid control for ASP.NET C# Webforms. It would behave similar to Excel. The rows will be sequential dates, and the columns are my equipment numbers. I want to be able to to ...
Kim's user avatar
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Error message: Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>). Other solutions tell one to modify the markup syntax in various ways, but I've ...
FloverOwe's user avatar
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2 votes
2 answers
210 views

I'm trying to add a dropdown to the connectorsSettings section in the form builder using FormsConnectorDefinitionsExtender. My field gets added but only the first choice is rendered and is rendered as ...
Muhammad Ahmod's user avatar
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2 answers
81 views

I have an .aspx web form. When Ajax Calendar is changed, I'm not being able to capture date since there is no Selection_changed event firing. I tried to fire one, but that is also not working. Not ...
SilverFish's user avatar
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1 answer
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I have integrated Keycloak v26.4.0 into a legacy .net 4.8 webforms app and enabled Microsoft as a provider. This is all working fine, but I need to disable the Keycloak username/password option so ...
Barnsley's user avatar
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I am trying to populate my fast report with dummy data using .NET code DataTable dt = new DataTable(); dt.Columns.Add("name", typeof(string)); dt.Columns.Add("days", typeof(string))...
Proba EPUS's user avatar
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I have an ASP.NET webforms project (A) which references two other webforms projects (B and C) that I'm trying to publish with precompilation enabled from the command line with MSBuild using a publish ...
James Mazikowski's user avatar
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I have this rewrite rule in web.config in my C# / .NET project: <rule name="URL Rewrite Test" stopProcessing="true"> <match url="(rewrite|testrewrite)-([0-9]+)/?&...
saXen's user avatar
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I am debugging into ASP.Net Identity 2.x assemblies since when I call Signout from an aspx Webforms page in an ASP.NET web site targetting .NET 4.8, the auth coookie never gets deleted and the user ...
Sunil's user avatar
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I have a following set up: <asp:Label Text="User Name" AssociatedControlID="inputUserName" runat="server"> <uc1:UserName ID="inputUserName" runat="...
abcid d's user avatar
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1 answer
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I have a RadToolBar (RadToolBar1) placed inside a RadGrid. When I use Tab to focus a RadToolBarButton and press Enter, the server-side event doesn’t fire (e.g., CommandName="InitInsert"). ...
Tylin's user avatar
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One particular page in our old monolith .NET Framework 4.8 webapp gets the connection_abandoned_by_reqQeue error thrown to the HTTPERROR log and immediately after IIS crashes and 5011 is logged, which ...
QuilleyPowers's user avatar
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1 vote
2 answers
139 views

I am currently upgrading a major MVS project and I am converting all the static GridViews to dynamically built HTML tables with Bootstrap CSS. The tables are created and look/function great. However, ...
potatoman1600's user avatar
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2 votes
1 answer
94 views

In C# and ASP.NET, I've been sending a value to another page via Request.Querystring for years, but just recently I've come against a page error that I cannot explain. If I send a string that has 0X ...
FlashTrev's user avatar
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2 answers
70 views

I'm working on a .NET Framework 4.8 project using Web Forms (the one with .aspx pages). During development, I used a WebMethod tasked with fetching and validating data, returning either a success (...
BrePi's user avatar
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We are implementing OWIN authentication to our legacy ASP.NET Webforms app through Keycloak. In Keycloak, we have two external identity providers. On our login page, there's two buttons as well ...
Neil Garcia's user avatar
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We've recently upgraded from standalone Report Viewer 2015 runtime to the NuGet package in our ASP.NET webapp (.NET Framework 4.7.2): https://www.nuget.org/packages/Microsoft.ReportingServices....
MrG's user avatar
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1 vote
1 answer
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In my ASP.NET web application I have a form submit with checkboxes. If in the first option 2 or 3 are selected, then a new questionnaire opens with 7 more questions. It's necessary to select all ...
user110502's user avatar
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0 answers
48 views

I'm working on a program, but veracode is detecting that part of my code is vulnerable to XSS CWE 80. Here is the snippet that is being flagged: ltLinkDoc.Text = '<script>$(window).bind("...
Nguyen Xuan Nghia's user avatar
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1 answer
98 views

I have a very simple webforms page with a button and literal that when I click the button it logs data twice. I don't understand why it's loading 2 times. <%@ Page Language="VB" ...
lleemon's user avatar
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1 vote
0 answers
22 views

I am trying to get some performance metrics for various controls (.ascx) that are on an ASP.NET webforms page. There's no problem with the whole page, but for user controls I can't get a good ...
jmoreno's user avatar
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2 votes
1 answer
143 views

I have to make the gridview using C# and ASP.NET. The gridview shown below get data from this SQL Server 2019 table dbfiddle I have searched numerous times both on google and in Stackoverflow threads ...
the_uncle_vince's user avatar
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-1 votes
1 answer
69 views

I need help updating <appsettings> value in the Web.config, I keep getting the following error message: A configuration file cannot be created for the requested Configuration object. I've ...
AlDiz's user avatar
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75 views

It is an ASP.NET web application written in C#. This is happening when I use: Server.Transfer("Reports.aspx"). I get this error: Unhandled exception when executing the current Web request. ...
Javier Fuentes's user avatar
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30 views

We’re using ClickPatrol’s form protection. To integrate it with HubSpot, we need to modify the main HubSpot JavaScript. Normally, this allows us to add custom inputs such as prefilled email addresses, ...
Mathieu Vloei's user avatar
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0 answers
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Don't know why my Visual Studio / ASP.NET webforms app suddenly stopped running on my local machine. If I upload the compiled project to the dev server, it also starts to produce this error. The ...
Haoest's user avatar
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0 answers
33 views

i have implemented the SignalR into my project and i have 10k data to upload and it is time consuming because, the background task for insertion will goes on by i can't able to see the real progress ...
Vishal Chavan's user avatar
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5 votes
0 answers
307 views

here is my code: using HttpClient client = new HttpClient(); try { HttpResponseMessage response = await client.GetAsync("http://131.189.89.86:11920/SetupWizard.aspx/yNMgLvRtUj"); } ...
Inside Man's user avatar
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0 votes
2 answers
100 views

The current interaction behavior is that after I click submit the form, it should have delayed time with spinner and success message but they're still not showing only modal close in setTimeout() ...
CChickii's user avatar
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0 votes
1 answer
50 views

I'm working on an ASP.NET WebForms application where I have a custom UserControl that acts as a filter control. It contains a Repeater, and each item in the repeater has a LinkButton representing a ...
puneet kumar's user avatar
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0 votes
1 answer
98 views

I am trying to create a web form where a user uses some drop down information and then a container appears and the user has to select one of the two radio options OK or NOT OK. The web form is created ...
1337TJ's user avatar
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0 votes
1 answer
94 views

My button is not getting enabled again. I want to enable the my_btn button when the text in my_txt changes, but it's not working. here's my code <asp:Button ID="my_btn" runat="server&...
PP K's user avatar
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0 votes
1 answer
106 views

I'm using webforms and VB.net. I am calling Stripe to perform an ACH transaction. I have a standalone program that works, however when I put the code in my production application, the flow is not ...
user30042976's user avatar
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0 votes
0 answers
52 views

I've been implementing Launchdarkly within a old .net framework webforms application. Things were going well until I came to this issue and I'm not sure the best method to mitigate it. Problem: I ...
Mike's user avatar
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1 vote
0 answers
40 views

In this code I am using Signal + WebRTC to live video. Brief description: The host is live streaming his video to all viewers and viewers when they click on the link will see the host's live video. ...
Chim Di Tru's user avatar
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1 vote
1 answer
138 views

My markup is: <asp:GridView ID="grvGroup" runat="server" AutoGenerateColumns="False" Width="100%" AllowPaging="True" PageSize="10" ...
Dev's user avatar
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0 votes
1 answer
199 views

I'm trying to integrate the SustainSys library as part of a single-sign-on integration I'm doing for an older .NET Framework (4.8) WebForms app. I'm using the HttpModule instructions located here: ...
Phil's user avatar
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0 votes
1 answer
95 views

I have a problem when trying to change the project URL in my ASP.NET webforms project. I want to change this because, for security reasons, an application does not allow testing locally, as it ...
Giorgio's user avatar
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0 votes
1 answer
91 views

(https://i.sstatic.net/gwpy5b6I.png) (https://i.sstatic.net/AjNqkJ8J.png) I am experiencing an unusual issue with one of my projects in Visual Studio. This problem does not occur in any of my other ...
Melih's user avatar
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0 votes
0 answers
56 views

My webforms website has started to experience the following exceptions: StackTrace 12/03/2025 00:00:38 Object reference not set to an instance of an object. Source File: /UserLogin.aspx?ReturnUrl=%...
David's user avatar
  • 1,078
-1 votes
1 answer
61 views

As the title says: I was to be able to do a search bring the search data back into a gridview that has clickable rows and once a row is clicked i will need to grab some info from that row and place it ...
ghostfly's user avatar
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0 votes
0 answers
37 views

I am trying to interact with a WebForms site via a WebView inside an Android application. I need to include a javascript interface to be able to send messages to the webview. However whenever a page ...
LairdPleng's user avatar
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0 votes
0 answers
35 views

StackTrace 3/9/2025 11:15:55 AM Object reference not set to an instance of an object. Source File: /UserLogin.aspx?ReturnUrl=%2f Stack Trace: at System.Web.HttpApplication.GetFactory(String type) ...
David's user avatar
  • 1,078
0 votes
0 answers
152 views

I am using YARP to migrate a legacy Web Forms application to Blazor (8.0) one module at a time (Strangler Fig pattern). My new Blazor application is running on port 5017. The legacy app is located on ...
Gary O. Stenstrom's user avatar
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0 answers
35 views

I have this webforms application that is giving me trouble understanding what I am doing wrong. I basically want that when a user changes the value of a textbox, it triggers an OnTextChanged event ...
Kinyanjui Kamau's user avatar
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1 answer
88 views

This is what I'm trying to implement: <form id="form1" runat="server" action="<%= AllowedURL() %>"> The other variable is without = <form id="form1&...
kaz00ie's user avatar
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0 answers
67 views

To anyone that can help me: I have been trying to batch print a page that has pagination functionality. Each page needs to load to properly display the page to print. I was using window.print, but ...
dspyank's user avatar
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