27 October 2015 13:58
Handling file uploads has changed quite a bit in ASP.NET 5. This article looks at the new objects that have been introduced to replace the old System.Web based approach from previous versions of ASP.NET.
Viewed 1012 times
19 October 2015 21:09
I have looked at uploading individual files and downloading multiple files in MVC, and I've had a few requests recently asking me to complete the series by showing how to upload multiple files in an ASP.NET MVC application.
Viewed 1066 times
09 October 2015 08:53
This short article examines the baffling issue that a lot of people seem to encounter when attempting to send multiple files to the client from an ASP.NET application, and provides the solution.
Viewed 1265 times
24 September 2015 08:05
This is the fourth in a series of articles that explores ASP.NET 5 by reconstructing the Visual Studio 2015 Web Application template from an Empty template. This article looks at the role of services and the new ASP.NET 5 dependency injection system. The series of articles has been developed using Visual Studio RTM and ASP.NET 5 Beta 6. It will be kept updated along with newer releases.
Viewed 3500 times
04 September 2015 09:32
This is the third in a series of articles that explores ASP.NET 5 by reconstructing the Visual Studio 2015 Web Application template from an Empty template. This article looks at the new configuration system added to ASP.NET 5 and will also cover how services like Entity Framework and MVC itself are added to the project. The series of articles has been developed using Visual Studio RTM and ASP.NET 5 Beta 6. It will be kept updated along with newer releases.
Viewed 2730 times
13 August 2015 21:05
This is the second in a series of articles that explores what's new in ASP.NET 5 by starting with the Visual Studio 2015 Empty site template and progressively adding files to emulate the Web Application template contents and structure. While not actually part of the ASP.NET 5 framework, this article explores the recommended tools for managing client-side dependencies: NPM, Bower and Gulp. These tools are very popular among front-end developers working with other frameworks and now that they have been integrated as first class citizens in Visual Studio 2015, their use is encouraged among .NET developers. The series of articles has been developed using Visual Studio 2015 and ASP.NET 5 Beta 6. It will be kept updated along with newer releases.
Viewed 2569 times
04 August 2015 13:20
When you create a new ASP.NET web application using the Web Application template, you are presented with a raft of new folders and files in a completely new structure. This article is the first in a series that attempts to demystify the new structure and the role that some of these files play. The article series starts with the Empty template and adds the various files that you might see in the web application template progressively to illustrate their purpose. This article uses Visual Studio 2105 RTM and ASP.NET 5 Beta 6. It will be updated in line with future releases.
Viewed 3585 times
29 July 2015 21:56
Viewed 693 times
23 July 2015 20:05
There are a number of reasons why you might get "The 'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine" error when attempting to connect to either an accdb or an xlsx file, depending on what you are doing. This article discusses some of the causes and provides solutions first for uses involving ASP.NET, and then looking at other application uses.
Viewed 48968 times
17 July 2015 13:43
Every time I need to work with the contents of text-based files in an ASP.NET application I invariably start off thinking about using the various static methods on the
System.IO.File class to extract the text and then some string manipulation or Regex to parse the content into some kind of structure. And, just in time, I remember the
TextFieldParser class that hides itself away in the
Microsoft.VisualBasic assembly. The purpose of this article is to introduce this component to a wider audience, but also to serve me as an aide-mémoire in terms of the basic usage, which I always have to look up.
Viewed 1249 times
07 July 2015 13:49
There are countless articles that demonstrate exporting ASP.NET GridViews to Excel. They pretty much all do the same thing - they use the RenderControl method to generate HTML and then save it to a file with a .xls extension. This kind of works, but the resulting file is actually an HTML file masquerading as an Excel file. And that has two flaws: it cannot be used as a data source because providers complain that it is not in an acceptable format, and users of Office 2007 or newer are always confronted with a warning about the contents of the file when they try to open it, causing confusion, suspicion or annoyance. This article shows how to use the free, open source library to export the content of a GridView control to a genuine .xlsx file that doesn't suffer these problems.
Viewed 8231 times
30 June 2015 14:47
This article allows me the opportunity to demonstrate a feature of my newest favourite open source library: EPPlus. EPPlus is a .net library that reads and writes Excel 2007+ files using the Open Office Xml format (xlsx). This fantastic, easy to use (and free) library enables the use of Excel in ASP.NET applications without the need to install the Access Database Engine (ACE) or having to mess about with unsupported Office Automation on the web server (assuming you can even get Office installed there). Prompted by a rash of similar questions that appeared on the ASP.NET forums recently, this article looks at reading the contents of an uploaded Excel file without saving it, and displaying the data in a Web Forms GridView.
Viewed 7364 times
18 June 2015 13:56
This article looks at how to configure Entity Framework to manage many to many relationships based on the same table. This scenario arises the same entity is related to itself in a different role. An example is the related product feature you might see in a "People also bought" section of an ecommerce site. Another is the relationship between clients and agencies in the advertising and marketing world. That scenario will form the basis of the illustration below.
Viewed 3293 times
18 May 2015 13:45
TagHelpers is one of the new features introduced in MVC 6, part of ASP.NET 5. They are used for generating reusable pieces of UI that require some kind of server-side processing. I took a closer look at the built-in collection of TagHelpers in my last article, Introducing TagHelpers in ASP.NET MVC 6. This article shows how to create your own custom TagHelpers. It will illustrate two ways of doing so: through parsing custom attributes; and by binding properties on the TagHelper.
Viewed 5534 times
11 May 2015 13:17
TagHelpers is one of the new features introduced in MVC 6. The TagHelper's role is similar to the one played in previous versions of ASP.NET MVC by HtmlHelpers: they are designed to simplify the work required to author views that need to respond dynamically to the data provided to them. However, the way in which they work and their impact on view design is very different to HtmlHelpers.
Viewed 13890 times
In response to ASP.NET 5: Managing Client-side Dependencies with NPM, Bower and Gulp
i fixed it. i'm not sure *what* it is that VS does, but you get the same result if you do a "npm on...
In response to ASP.NET 5: Managing Client-side Dependencies with NPM, Bower and Gulp
There seems to be a major issue with the dependency manager in VS2015. I haven't yet figured out but...
In response to Getting the identity of the most recently added record
Great contribution friend. Thank you so much for sharing....
In response to ASP.NET 5 Middleware, Or Where Has My HttpModule Gone?
Great article. I have gone through hundreds of articles, finally this gives the comprehensive of...
In response to Import Data From Excel to Access with ASP.NET
While use this code i'm facing on error: "Unrecognized Database format C:\mydabase.accdb" can any...
In response to ASP.NET 5 Project Basics
For a new learner (Fresher) in ASP.NET there is a issue Fresher have to learn two types of , old...
In response to ASP.NET 5 By Numbers
I have to agree fully with Paul, this does sound like an entire mis-mash of technologies. Sort of in...
In response to MVC 5 with EF 6 in Visual Basic - Creating an Entity Framework Data Model
Many thanks Mike to introduce me in the EF6 Code First way of thinking. Exactly what I need for my...
In response to Examining the Details and Delete Methods
Hello, really great tutorial for a beginner like me! Is it possible to have an explanation on how a...
In response to Reading Excel Files Without Saving To Disk In ASP.NET
Could anyone please help me, I am getting : "OfficeOpenXml.ExcelPackage" does not contain a for...