Troubleshooting TLS / SSL communication problems for ASP.NET applications making HTTP Web Request or WCF queries to SSL endpoints – Scenario 3

In our first and second posts about troubleshooting the TLS / SSL problems, we worked to fix a “The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel” error message. We made some basic tests, such as a “browser test” and found that the certificate used was not valid and then…


Troubleshooting TLS / SSL communication problems for ASP.NET applications making HTTP Web Request or WCF queries to SSL endpoints – Scenario 2

This is the second part of our series of articles about troubleshooting TLS / SSL communications problems when you make Http Web Request or WCF queries from your ASP.NET applications to SSL endpoints. In our first scenario, we troubleshooted a “The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel” error message. We…


Troubleshooting TLS / SSL communication problems for ASP.NET applications making HTTP Web Request or WCF queries to SSL endpoints – Scenario 1

This is the first part of a series of articles about troubleshooting TLS / SSL communications problem when you make Http Web Request or WCF queries from your ASP.NET applications to SSL endpoints. As explained in the introduction article, we will cover some of the problems for our simple ASP.NET 4.6 application which makes an…


Troubleshooting TLS / SSL communication problems for ASP.NET applications making HTTP Web Request or WCF queries to SSL endpoints – Introduction

This is the introduction post of a series of articles about troubleshooting TLS / SSL communications problem when you make Http Web Request or WCF queries from your ASP.NET applications to SSL endpoints. Consider the following set up: You are running an ASP.NET application which makes an HTTPS request to an endpoint and the response…


Making sure one’s site is compatible with Internet Explorer 11

I have seen a couple of support calls recently that seem to center on various customer ASP.net websites that are not working well (or at all) with Internet Explorer 11. The issues are mostly centered on functionality available on the site’s pages that works well in Internet Explorer 11 in compatibility mode or in other…


Working with ScriptManager and AddHistoryPoint on Master Pages with ASP.net WebForms

While working on my bookmarking site (www.linqto.me), I came up against the following problem: how to make Ajax search pages be persistent even after the user navigates away from them, and then comes back. To illustrate this example, go to www.linqto.me/Links/Search and then search for something like ASP.net – then click on a search result….


Developing ASP.net 4.5 Webforms apps with Visual Studio 2012 – Part 12

The twelfth and final video in the series finishes the implementation of the Repository Pattern in WebForms. The video shows how to move the Insert / Update and Delete entity methods from the code behind to the repository classes, and how to use the ModelMethodContext object to do unit testing on repository methods. << Previous…


Developing ASP.net 4.5 Webforms apps with Visual Studio 2012 – Part 11

The eleventh video in the series looks at implementing the Repository Pattern in ASP.net WebForms. The pattern aims at moving all the code dealing with Data Access Layer out from the code behind of the different web-pages and into the dedicated repository classes. << Previous Chapter | Next Chapter (Implementing CRUD with the Repository Pattern)…


Developing ASP.net 4.5 Webforms apps with Visual Studio 2012 – Part 10

The tenth video in the series looks at sorting and pagination and explores how the code used to select records and load them into the GridView deals with both pagination and sorting using Lazy Loading. It also shows some of the CSS template improvements that come with the standard CSS template shipped with Visual Studio….