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ASP.NET Web Forms

Exporting data to Excel

February 16, 2016 By _tasos Leave a Comment

In this article we will see how we can export data to an Excel file in a web application where the Interop library might no be available. We saw a similar approach in a previous article but that approach generates a file that is not a proper Excel file, rather it was a text file […]

Filed Under: .NET Development, ASP.NET Tagged With: ASP.NET MVC, ASP.NET Web Forms, Data backup

URL rewriting in an ASP.NET application

October 7, 2014 By _tasos 1 Comment

When ASP.NET 4.0 was released, a really cool feature, routing, was available in both ASP.NET MVC and ASP.NET Web Forms. But there are scenarios that cannot be answered with routing and we need to perform URL rewriting.

Filed Under: ASP.NET Tagged With: ASP.NET Web Forms, Url rewriting

CORS upload to Amazon S3 from an ASP.NET application

July 18, 2014 By _tasos Leave a Comment

With CORS, you can securely upload files directly into an S3 bucket, directly from the browser, without using an intermediate proxy (e.g. your web server).

Filed Under: .NET Development, ASP.NET, JavaScript Tagged With: ASP.NET MVC, ASP.NET Web Forms, AWS, HTML5

Use Dropbox with your ASP.NET application

November 7, 2013 By _tasos 21 Comments

In this article we will see how we can use Dropbox in a ASP.NET application. We will implement the basic functions of a file manager. Since there is no official SDK for .NET, we will use the HigLabo library for our interaction with the Dropbox API.

Filed Under: .NET Development, ASP.NET Tagged With: ASP.NET MVC, ASP.NET Web Forms, HigLabo

‘‘ is ambiguous in the namespace

April 22, 2013 By _tasos Leave a Comment

There are times where this error appears in our web application, without a specific reason. ‘<name>’ is ambiguous in the namespace ‘<namespace>’ This error has the following error code Error ID: BC30560.

Filed Under: ASP.NET, IIS Tagged With: ASP.NET Web Forms

Avoiding the ‘A potentially dangerous Request.Form value was detected’

January 28, 2013 By _tasos 3 Comments

This is a common error that ASP.NET developers have run into many times. We will see in this article a few ways on how to avoid it, both in Web Forms and MVC.

Filed Under: ASP.NET, IIS Tagged With: ASP.NET MVC, ASP.NET Web Forms

Export GridView or Repeater to Excel

November 20, 2012 By _tasos Leave a Comment

In this article we will see how we can use the GridView control for this task. This approach still limits us to use a GridView, so after that we will see how we can make a Repeater (or any other control) that renders an HTML table to an excel file.

Filed Under: ASP.NET Tagged With: ASP.NET Web Forms, Data backup

ASP.NET and Ajax. All about update panels, web methods, page methods and jQuery

February 26, 2012 By _tasos 5 Comments

In this article, we will discuss what ASP.NET offers and a few tips on how to use them. Finally we will leave ASP.NET and see how we can achieve the same functionality with jQuery.

Filed Under: ASP.NET, JavaScript Tagged With: ASP.NET Ajax, ASP.NET Web Forms, jQuery

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