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![Query for list items using CAMLUse for loop to iterate through list itemsIterate through List Itemslet fsugMeetings = web.Lists.GetByTitle("FSUG Meetings")let query = new CamlQuery()query.ViewXml <- "<View><Query><OrderBy>...let listItems = fsugMeetings.GetItems(query)ctx.Load(fsugMeetings);ctx.Load(listItems);ctx.ExecuteQuery();for meeting in listItems do print <| "Meeting: " + meeting.["Title"].ToString()](https://image.slidesharecdn.com/exploringsharepointwithfsharp-110731195737-phpapp01/85/Exploring-SharePoint-with-F-27-320.jpg)
![Query for list items using CAMLUse for loop to iterate through list itemsIterate through List Itemslet fsugMeetings = web.Lists.GetByTitle("FSUG Meetings")let query = new CamlQuery()query.ViewXml <- "<View><Query><OrderBy>...let listItems = fsugMeetings.GetItems(query)ctx.Load(fsugMeetings);ctx.Load(listItems);ctx.ExecuteQuery();for meeting in listItems do print <| "Meeting: " + meeting.["Title"].ToString()](https://image.slidesharecdn.com/exploringsharepointwithfsharp-110731195737-phpapp01/75/Exploring-SharePoint-with-F-27-2048.jpg)
Uploaded byTalbott Crowell
Exploring SharePoint with F#
This document summarizes a presentation about exploring SharePoint with the F# programming language. It discusses the history and characteristics of functional programming and F#, including that F# is a functional-first language developed by Microsoft Research. It also covers how to use the F# Client Object Model to connect to and query SharePoint, including loading references, creating a client context, and querying sites, lists, and list items. The presentation demonstrates iterating through lists and items and retrieving properties.
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Exploring SharePoint with F#
- 1. Exploring SharePoint withF#Talbott Crowell (MVP)@TalbottSharePoint Saturday New York CityJuly 30, 2011
- 2. Learn something new(exercise for the brain)Trend in functional programmingJava -> Clojure, ScalaErlangLINQ added to VB and C#Microsoftâs official (and only) functional programming languageWhy F#
- 3. Functional programming hasbeen around a long timeNot newLong historyFunctional programming is safeA concern as we head toward manycore and cloud computingWhy another language?
- 4. 1930âs: lambda calculus(roots)1956: IPL (Information Processing Language) âthe first functional language1958: LISP âa functional flavored languageâ1962: APL (A Programming Language)1973: ML (Meta Language)1983: SML (Standard ML)1987: Caml (Categorical Abstract Machine Language ) and Haskell1996: OCaml (Objective Caml)Functional programming has been around a long time
- 5. Functional language developedby Microsoft ResearchBy Don Syme and his team, who productized GenericsBased on OCaml (influenced by C# and Haskell)History2002: F# language design started2005 January: F# 1.0.1 releases to publicNot a product. Integration with VS2003Works in .NET 1.0 through .NET 2.0 beta, Mono2005 November: F# 1.1.5 with VS 2005 RTM support2009 October: VS2010 Beta 2, CTP for VS2008 & Non-Windows users2010: F# is âproductizedâ and baked into VS 2010What is F#
- 6. Interactive Scripting UsesREPL (Read Evaluate Print Loop)Good for prototypingSuccinct = Less codeType InferenceStrongly typed, strictAutomatic generalization (generics for free)Few type annotations1st class functions (currying, lazy evaluations)Pattern matchingKey Characteristics of F#
- 7. Functional firstMutable keywordFunctionsare first class valuesBlend of functional and imperativeObject oriented capabilitiesBuilt on .NET FrameworkPracticalLeverage existing codeWhat I like about F#
- 8. What is manycore?Lotsof processors on one chipTens or hundredsIntel â Future (Task parallelism)NVIDIA GPU â Today (Data parallelism)500+ cores on chipGraphics, gaming, 3D renderingUse CUDA for financial or research computingProgram in C or C++
- 9. The Power Wall:CPU Clock SpeedManycore->Multicore->Single core->From Katherine Yelickâs âMulticore: Fallout of a Hardware Revolutionâ
- 10. Road to manycore1970â 2005Single core on the âdesktopâ and laptop2006 â 2011Single core on the smartphone/tabletMulti core on the âdesktopâMulti core in the cloud2012 â 2020Multi core on the smartphone/tablet2021Manycore probably will be common on many devices and computers
- 11. Multicore for Smartphones/TabletsAndroid2.2 already supports multicoreNVIDIA dual core test with one core shut off1.5 to 1.6x faster with two coreshttp://bit.ly/nvidiadualcoreNVIDIA quad core on its waySmartphones by holiday season 2011Faster than 2 GHz notebook Core 2 Duo (T7200)http://bit.ly/eWMOsuQualcomm quad core SnapDragonDevices expected in 2013Intel announcing entry into Smartphone market
- 12. Declarative programming style Easierto introduce parallelism into existing codeImmutability by defaultCanât introduce race conditionsEasier to write lock-free codeFunctional Programming
- 13. Type inferenceExpressionsF# Basicsletx = 5let y = 5.0 let files = Directory.GetFiles(@"C:\images\original")let x = 5 * 5let y = 5.0 / 3.0let width = image.Width / 8
- 14. FunctionAnonymous functionsF# Functionsletsqr x = x * xsqr 5(fun x -> x * x) 5
- 15. The |> CombinatorâPipe Forwardâ ExampleF# Combinators x |> f is the same as f x let sqr x = x * xsqr 5 5 |> sqr
- 16. The <| CombinatorâPipe Backwardâ ExampleF# Combinators f <| x is the same as f x let sqr x = x * xsqr 5sqr <| 3 + 2 not same as sqr 3 + 2
- 17. Similar to operatoroverloading ExampleSymbolic Functions let (operatorName) left right = <function> open System.Text.RegularExpressions let (===) str regex = Regex.Match(str, regex).Success
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- 21. For more infoon Client Object ModelSee âUsing the SharePoint Foundation 2010 Managed Client Object Modelâhttp://msdn.microsoft.com/en-us/library/ee857094(office.14).aspx
- 22. Load References FSXScriptOpen namespaceClient Object Model Assemblies#r @"..\ReferenceAssemblies\Microsoft.SharePoint.Client.dll" #r @"..\ReferenceAssemblies\Microsoft.SharePoint.Client.Runtime.dll"open Microsoft.SharePoint.Client
- 23. Create SharePoint ClientContextPass CredentialsClient Context and Credentialslet ctx = new ClientContext("http://fsug.org")ctx.Credentials <- new NetworkCredential( user, password, domain)
- 24. Helper function toLoad and QueryRetrieve Site CollectionLoad and Query Contextlet load(ctx:ClientContext)(item:'a) = ctx.Load(item)ctx.ExecuteQuery() let site = ctx.Site load ctx site
- 25. Site Collection (Site)and Site (Web)Site Collection and Sitelet site = ctx.Site load ctx site let web = site.RootWeb load ctx weblet title = web.Title
- 26. Use for loopto iterate through listsIterate through Lists load ctxweb.Lists for list in web.Lists do print <| "List Title: " + list.Title
- 27. Query for listitems using CAMLUse for loop to iterate through list itemsIterate through List Itemslet fsugMeetings = web.Lists.GetByTitle("FSUG Meetings")let query = new CamlQuery()query.ViewXml <- "<View><Query><OrderBy>...let listItems = fsugMeetings.GetItems(query)ctx.Load(fsugMeetings);ctx.Load(listItems);ctx.ExecuteQuery();for meeting in listItems do print <| "Meeting: " + meeting.["Title"].ToString()
- 28. Use for loopto iterate through listsIterate through Lists load ctxweb.Lists for list in web.Lists do print <| "List Title: " + list.Title
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- 30. Future of F#Solutionfor the Data DelugeType ProvidersVideo by Keith Battocchi
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- 32. Thank YouReferences:http://TryFsharp.orgPlay withF# on browserTutorialLoad and save fileshttp://fsharp.netMore information
- 33. My InfoTalbott CrowellF#MVPhttp://fsug.orgNew England F# User Grouphttp://twitter.com/talbott @talbott@BASPUGBoston Area SharePoint User Grouphttp://ThirdM.comThird Millennium, Inc. Chief Architect