#EPPlus

[componentsource]

EPPlus 6.2.7

[codingspot]

Microsoft Excel has the basic features of all spreadsheets, using a grid of cells arranged in numbered rows and letter-named columns to organize data manipulations like arithmetic operations. It has a battery of supplied functions to answer statistical, engineering and financial needs.Today we will see c# read excel file. We use EPplus library for reading data from excel. There are different versions are available in Epplus library.There are different versions are available in Epplus library.

[ryadel]

ASP.NET How to set the proper Data Type of MS Excel cells with EPPlus

If you've stumbled upon this post you most likely already know EPPlus, one of the best open-source libraries to programmatically read, create and edit MS Excel files in XLS and XLSX format: a great alternative to the Microsoft.Office.Interop.Excel official package, at least for web applications. We already talked about it in a couple posts on this blog, explaining how to programmatically create and/or edit a MS Excel XLSX file and how to apply style and format rules to it. In this post we'll try to address a few issues experienced by some EPPlus users when trying to format the cell and/or column values using format-specific data types such as Numeric, Date, DateTime, Currency and so on. Here are some of these issues that can be found on StackOverflow: https://stackoverflow.com/questions/24933947/excel-date-column-returning-int-using-epplus https://stackoverflow.com/questions/31537981/using-epplus-how-can-i-generate-a-spreadsheet-where-numbers-are-numbers-not-text https://stackoverflow.com/questions/40209636/epplus-number-format Since most of the solutions and workarounds mentioned in these threads are not effective for all scenarios, we tried to give our two cents with the following lines of code. For the sake of simplicity, we used the source code used here as a boilerplate, changing only the main foreach statement in the following way: Despite being a rather general purpose approach, these if-then-else conditional rules fixed all our issues with data types: all the cells will have their "proper" format: such method also supports NULL values in each cell.

Conclusion

That's it, at least for now. The code itself is quite self-explanatory, all you need to do if you want to use and/or change it to suit your needs is read the comments and act accordingly. Have a good time with ASP.NET and EPPlus!   Read the full article

[everythingaboutcode-blog]

Import Excel Data To Objects In C#

It is not difficult to write a simple generic method in C# to import data from an Excel file to a list of objects. Here is the article which explains about my code written for importing an excel using EPPlus nuget package.

https://link.medium.com/I8bPEXIqjib

[sergey-tihon]

F# Weekly #22, 2019 – Winners of Applied F# Challenge

F# Weekly #22, 2019 – Winners of Applied F# Challenge

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

Results of Applied F# Challenge 2019

FSharp.Formatting is identifying maintainers

Winners of Applied F# Challenge

Natallia Dzenisenka: Failure Detection and Consensus in Distributed Systems with F#

Joerg Beekmann: Cloudflare Workers in F#

Tim Forkmann: Juniper- a high level computation expression on top of the EPPlus excel…

[alanlcole]

To Create Excel With DataTable And Chart Using EPPLUS C#

EPPLUS library can be installed by using the NuGet Package Manager. In this blog, we will learn how to create an Excel with DataTable and Chart. source https://www.c-sharpcorner.com/Blogs/to-create-excel-with-data-table-and-chart-using-epplus-c-sharp from C Sharp Corner http://bit.ly/2OUfwMQ

[carlajsmith]

To Create Excel With DataTable And Chart Using EPPLUS C#

EPPLUS library can be installed by using the NuGet Package Manager. In this blog, we will learn how to create an Excel with DataTable and Chart. from C-Sharpcorner Latest Content http://bit.ly/2I8yU8f

from C Sharp Corner https://csharpcorner.tumblr.com/post/184035401871

[componentsource]

EPPlus 6.2.4

[codingspot]

In software development may be excel used to read data from excel and store in project database. Developers are getting so difficult when come how to get image from excel. In this post we give innovative solution for it to developer.

[csharpcorner]

To Create Excel With DataTable And Chart Using EPPLUS C#

EPPLUS library can be installed by using the NuGet Package Manager. In this blog, we will learn how to create an Excel with DataTable and Chart. from C-Sharpcorner Latest Content http://bit.ly/2I8yU8f

[ryadel]

ASP.NET - Generate Excel files programmatically with EPPlus

If you've stumbled upon this post it most likely means that you're looking for a way to generate MS Excel XLS / XLSX files within your ASP.NET web application. The typical scenario for such needis the following one: you have a DBMS from where you pull off some data - using a OleDBConnection, a SqlConnection, an EntityFramework model or anything database-fetching technique  - which you want to send to your users through a downloadable MS Excel file. In purely theoretical terms, you might think about doing this using the MS Office Interop libraries, using a technique similar to what we explained in a couple other articles: Programmatically convert MS Word DOC and DOCX files to PDF using Office Interop Programmatically Access, Read and Edit MS Word DOC and DOCX files using Office Interop However, if you are here (or if you already read those posts) you most likely already know that the Microsoft Office primary interop assemblies (PIAs), better known as Office Interop, are not something you should rely upon: although there is an ASP.NET library package specifically designed to handle MS Excel files, the whole Office.Interop set of libraries is not meant to be used in web applications and will definitely cause you some nasty setup and configuration issues, such as those we enumerated (and tried to deal with) there. Luckily enough, there's a good news for you: a NuGet library package that does basically the same tasks you might want to use the Microsoft.Office.Interop.Excel namespace for, while working way better than that in a typical web application scenario: and it's also completely free to use! We're talking of EPPlus, a great library developed by Jan Kallman and available either on GitHub and as a compiled, full-flegded NuGet package. The project is licensed under the GNU Library General Public License (LGPL), meaning that it can be used everywhere. In this post we'll briefly show how we can install this great tool on a typical Visual Studio environment and then use it to generate a MS Excel file from a standard ASP.NET DataTable which we (ideally) pulled off by a DBMS of some sort.

Installing EPPlus

The most practical way to install EPPlus from Visual Studio is to open the NuGet Package Manager Console (View > Other Windows > Package Manager Console) and type the following command: If you prefer to install it through the .NET CLI, you can use this command from an elevated command prompt or powershell prompt: Version notes It's worth noting that this test-drive was performed using EPPlus version 4.5.3.1, which was the latest available version at the time of writing: such version is fully compatible with all the most recent versionf of the .NET Framework, from 3.5 to 4.7.x (we tested it with 4.7.2).

EPPlus usage example

Without further ado, here's a full source code sample that will convert a standard DataTable to a XLSX Excel file and then send it to the user for the download: As we can see, this is an ActionResult method that could fit on any ASP.NET MVC Controller: if you're not using ASP.NET MVC you can still use it, just copy the method content wherever you need to (classic ASP.NET, Console Application, Windows Forms, and so on). The code is quite self-explanatory and full of comments  that should hopefully explain the various processing steps. However, let's briefly summarize what are we doing here: We fetch a DataTable object using a custom Data Provider method. We create a ExcelPackage object, which is the main container used by EPPlus for the XLSX file. We add a ExcelWorksheet inside the ExcelPackage, which is the worksheet we'll put the data in. We iterate the DataTable columns, adding them to the first row of our worksheet to build our header row. We iterate the DataTable rows, adding each one of them to our worksheet (starting from row 2), so that each DataTable row will result in a corresponding worksheet row. Once the conversion between the DataTable and the ExcelPackage is done, we create a MemoryStream to store the ExcelPackage binary data, then convert it to a byte array. We prepare the HTML response and send the XLSX file to the user with Content-Disposition attachment, so that the browser will force the download of the file. It's worth noting that we used a one-liner function to retrieve the proper mime-type for XLSX files (which is "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"): such function is available only since .NET Framework 4.5 and it's the preferred method to retrieve mime-types since then. If you need to retrieve the mime-type with older .NET Frameworks, you can use one of the various workaround described in this other post.

Conclusion

That's basically it, at least for now: I will definitely write again about the topic in the near future and share additional code samples. Meanwhile, feel free to use or modify the above code to your specific needs and enjoy the DataTable-to-XSLX conversion thanks to EPPlus!   Read the full article

[samuellproffitt]

Import And Export Data Using EPPlus.Core

In this post, we will see how we can import and export excel data in Asp.net Core. We are using EPPlus.Core library which helps us to perform import and export operations. I hope you will like it. from http://www.c-sharpcorner.com/article/import-and-export-data-using-epplus-core/

from C Sharp Corner - Blog http://csharpcorner.weebly.com/blog/import-and-export-data-using-eppluscore

[alanlcole]

Using EPPlus To Import And Export Data In ASP.NET Core

In this article, we will use EPPlus to import and export Excel files in ASP.NET Core. source https://www.c-sharpcorner.com/article/using-epplus-to-import-and-export-data-in-asp-net-core/ from C Sharp Corner https://ift.tt/2C5RPvM

[carlajsmith]

Using EPPlus To Import And Export Data In ASP.NET Core

In this article, we will use EPPlus to import and export Excel files in ASP.NET Core. from C-Sharpcorner Latest Content https://ift.tt/2H1bfpS

from C Sharp Corner https://csharpcorner.tumblr.com/post/183243708451

[componentsource]

EPPlus 6.2.0

[csharpcorner]

Using EPPlus To Import And Export Data In ASP.NET Core

In this article, we will use EPPlus to import and export Excel files in ASP.NET Core. from C-Sharpcorner Latest Content https://ift.tt/2H1bfpS