I was recently doing some work on a website which has a mixture of older Classic ASP pages and ASP.NET Web Forms pages and ran into problems with custom error pages.

If you have an ASP.NET Web Forms page with multiple UpdatePanels and multiple UpdateProgress controls, sometimes you may want one or more UpdateProgress controls associated with a specific UpdatePanel, and one or more UpdateProgress controls that have no association with an UpdatePanel so are shown when any UpdatePanel is updated.

Although you can easily create inline checkboxes and radio buttons using ASP.NET CheckBoxes and RadioButtons using Bootstrap's checkbox-inline and radio-inline classes, it's not so easy with ASP.NET CheckBoxList and RadioButtonList controls.

I came across an issue where I was setting Page.Title in my ASPX page's Page_Load event, but it was appearing blank when I was attempting to retrieve the value in the MasterPage's Page_PreRender event.

I have been working on an ASP.NET Web Forms project that is being converted to Bootstrap 3 and have run into a few issues with Modals.

Following on from my last post about improving Bootstrap styling and accessibility for ASP.NET RadioButtonLists and CheckBoxLists, in this post I offer a solution for styling these controls within Bootstrap horizontal forms.

I have wanted to add protection from vavigating away from some of my web forms but most of the solutions I have seen do not work well with ASP.NET with it's many possible ways of posting back and AJAX using Update Panels.

My latest web project is Ghost Tour Bookings, a website where ghost tours are advertised and people can make enquiries or book the tour.

If you come across a problem where you set the Visible property of an ASP.NET control to true in a code behind file, but even when you debug it still shows the value as being false then the problem is most likely to be that the control is inside another control such as a Panel or PlaceHolder that has its Visible property set to false.

I recently experienced an issue with an ASP.NET Web Forms page with various UpdatePanels. The page has two DropDownLists, the selection of one results in populating of possible values in the other, and the selection of the other results in enabling of a Button. Then if the Button is clicked the user is redirected to another website, based on their selection.

Web forms makes it really easy to create a simple website, but it is also really difficult to crate a complicated website. These are some of the things you will need to know sooner or later.

Personally I can never remember which of the Request object properties I need to use to get the requested URL or certain parts of the requested URL.

On database-driven websites it is commonplace to execute multiple database queries to generate just one page. For example, on the home page of an ecommerce website you might get a list of categories, a list of banner advertisements to display, a list of featured products, and a list of top selling products. I investigate whether it was more efficient to put these multiple queries into one stored procedure and use the SqlDataReader's Next Result method to get the data all in one go.

If you are using Entity Framework and have received this error message and have been frustrated by not being able to see what the actual problem is in Visual Studio then there is a simple solution.

If you use ASP.NET UpdatePanels, most of the time you want to maintain the window scroll position but there are occasions when you don't want to scroll back to the top or to a specific control.

I often use the standard ASP.NET ValidationSummary to display form validation error messages but often struggle what to write for the Headertext property.

Looking at the Google search results, it seems that there has been plenty of demand to share Session values between Classic ASP and ASP.NET. This is usually a result of supporting legacy Classic ASP.NET with new development in ASP.NET.

Review of webSupergoo's ABCPDF.

Solution to the ASP.NET UpdatePanel lost focus on post back issue.

Many or perhaps most websites have the need for a search facility to search the website content or other things like products. Ideally you want an intelligent search, a bit like a search engine, where search results are ordered by relevancy, misspellings are tolerated, and maybe even word stemming is used (so a search for "teach" also returns results for "teacher", "teaches", "teaching", "taught", etc).

Following up on my previous article about ASP.NET HtmlForms, this sample code illustrates how to handle file uploads.

There are times when I really like ASP.NET and times when I don't. Usually the times that I don't are when I don't have as much control over the final HTML markup as I would like, or when I look at the amount of JavaScript, ViewState and other markup that ASP.NET has added.

I needed to add a login with Facebook button to a website and wanted a simple solution that would check whether the user successfully logged in and return their email address and name. I considered using the C# SDK but couldn't find much in the way of documentation or samples to accomplish this task.

Using Linq to SQL and need to order by NULLS last?