Yes, it is.
The question is: how far down the rabbit hole do you want to go? Do you want completely dynamic objects, for instance? Or strongly typed objects in code that dynamically load from a database? Is the assumption that the object structure in code the same as the database, or are there certain fields in the database you don't want in your type (or vice-versa)? Do you want the code to inspect the database and dynamically create a type based on whatever is in there?
Lots of design questions, but yes, it is very doable. I have some similar code in about 250 lines. Not tested enough to post, sadly.
Thank you for answering the question. Your answer sounds like an excellent article for codeproject
Topic tags
- f# × 3705
- websharper × 1897
- compiler × 286
- functional × 201
- ui next × 139
- c# × 121
- classes × 97
- web × 97
- .net × 84
- book × 84
- async × 76
- ui.next × 67
- bug × 54
- core × 49
- website × 49
- server × 45
- parallel × 43
- ui × 43
- enhancement × 41
- parsing × 41
- testing × 41
- trywebsharper × 41
- typescript × 37
- html × 35
- javascript × 35
- owin × 35
- asynchronous × 30
- monad × 28
- ocaml × 28
- tutorial × 27
- warp × 27
- haskell × 26
- sitelet × 25
- linq × 22
- workflows × 22
- wpf × 20
- fpish × 19
- introduction × 19
- silverlight × 19
- sitelets × 19
- monodevelop × 17
- rpc × 17
- suave × 17
- piglets × 16
- collections × 15
- feature request × 15
- jquery × 15
- templates × 15
- getting started × 14
- pipeline × 14
- kendoui × 13
- reactive × 12
- 4.1.0.171 × 11
- monads × 11
- opinion × 10
- 4.0.190.100-rc × 9
- deployment × 9
- fixed × 9
- formlets × 9
- in × 9
- json × 9
- plugin × 9
- proposal × 9
- scheme × 9
- solid × 9
- basics × 8
- concurrent × 8
- highcharts × 8
- how-to × 8
- python × 8
- 4.1.1.175 × 7
- complexity × 7
- documentation × 7
- visual studio × 7
- 4.1.2.178 × 6
- lisp × 6
- real-world × 6
- released in 4.0.192.103-rc × 6
- remoting × 6
- resources × 6
- scala × 6
- websharper ui.next × 6
- workshop × 6
- xaml × 6
- 4.0.193.110 × 5
- 4.2.3.236 × 5
- aspnetmvc × 5
- authentication × 5
- azure × 5
- bootstrap × 5
- conference × 5
- dsl × 5
- formlet × 5
- java × 5
- list × 5
- metaprogramming × 5
- ml × 5
- released in Zafir.4.0.188.91-beta10 × 5
- sql × 5
- visualstudio × 5
- websharper.forms × 5
- zafir × 5
- 4.0.192.106 × 4
- 4.0.195.127 × 4
- 4.1.0.38 × 4
- 4.2.1.86 × 4
- 4.2.6.118 × 4
- css × 4
- example × 4
- extensions × 4
- fsi × 4
- fsx × 4
- html5 × 4
- jqueryui × 4
- lift × 4
- reflection × 4
- remote × 4
- rest × 4
- spa × 4
- teaching × 4
- template × 4
- websocket × 4
- wontfix × 4
- 4.0.196.147 × 3
- 4.1.0.34 × 3
- 4.1.6.207 × 3
- 4.2.1.223-beta × 3
- 4.2.11.258 × 3
- 4.2.4.114 × 3
- 4.2.4.247 × 3
- 4.2.5.115 × 3
- 4.2.6.253 × 3
- 4.2.9.256 × 3
- ajax × 3
- alt.net × 3
- aml × 3
- asp.net mvc × 3
- canvas × 3
- cloudsharper × 3
- compilation × 3
- database × 3
- erlang × 3
- events × 3
- extension × 3
- file upload × 3
- forums × 3
- inline × 3
- issue × 3
- kendo × 3
- macro × 3
- mono × 3
- msbuild × 3
- mvc × 3
- pattern × 3
- piglet × 3
- released in Zafir.4.0.187.90-beta10 × 3
- svg × 3
- type provider × 3
- view × 3
- 4.1.1.64 × 2
- 4.1.5.203 × 2
- 4.1.7.232 × 2
- 4.2.10.257 × 2
- 4.2.3.111 × 2
- 4.2.5.249 × 2
- android × 2
- asp.net × 2
- beginner × 2
- blog × 2
- chart × 2
- client × 2
- client server app × 2
- clojure × 2
- computation expressions × 2
- constructor × 2
- corporate × 2
- courses × 2
- cufp × 2
- d3 × 2
- debugging × 2
- direct × 2
- discriminated union × 2
- docs × 2
- elm × 2
- endpoint × 2
- endpoints × 2
- enterprise × 2
- entity framework × 2
- event × 2
- f# interactive × 2
- fable × 2
- flowlet × 2
- formdata × 2
- forms × 2
- fsc × 2
- google maps × 2
- hosting × 2
- http × 2
- https × 2
- iis 8.0 × 2
- install × 2
- interactive × 2
- interface × 2
- iphone × 2
- iteratee × 2
- jobs × 2
- jquery mobile × 2
- keynote × 2
- lens × 2
- lenses × 2
- linux × 2
- listmodel × 2
- mac × 2
- numeric × 2
- oauth × 2
- obfuscation × 2
- offline × 2
- oop × 2
- osx × 2
- packaging × 2
- pattern matching × 2
- performance × 2
- pipelines × 2
- q&a × 2
- quotation × 2
- reference × 2
- released in Zafir.4.0.185.88-beta10 × 2
- rx × 2
- script × 2
- security × 2
- self host × 2
- seq × 2
- sockets × 2
- stm × 2
- tcp × 2
- trie × 2
- tutorials × 2
- type × 2
- url × 2
- var × 2
- websharper.charting × 2
- websharper4 × 2
- websockets × 2
- wig × 2
- xna × 2
- zh × 2
- .net interop × 1
- 2012 × 1
- 4.0.194.126 × 1
- 4.1.3.184 × 1
- 4.1.4.189 × 1
- 4.2.0.214-beta × 1
- 4.2.12.259 × 1
- 4.2.2.231-beta × 1
- 4.2.8.255 × 1
- Canvas Sample Example × 1
- DynamicStyle Animated Style × 1
- Fixed in 4.0.190.100-rc × 1
- Released in Zafir.UI.Next.4.0.169.79-beta10 × 1
- SvgDynamicAttribute × 1
- WebComponent × 1
- abstract class × 1
- accumulator × 1
- active pattern × 1
- actor × 1
- addin × 1
- agents × 1
- aggregation × 1
- agile × 1
- alter session × 1
- animation × 1
- anonymous object × 1
- apache × 1
- api × 1
- appcelerator × 1
- architecture × 1
- array × 1
- arrays × 1
- asp.net 4.5 × 1
- asp.net core × 1
- asp.net integration × 1
- asp.net mvc 4 × 1
- asp.net web api × 1
- aspnet × 1
- ast × 1
- attributes × 1
- authorization × 1
- b-tree × 1
- back button × 1
- badimageformatexception × 1
- bash script × 1
- batching × 1
- binding-vars × 1
- bistro × 1
- body × 1
- bundle × 1
- camtasia studio × 1
- cas protocol × 1
- charts × 1
- clarity × 1
- class × 1
- cli × 1
- clipboard × 1
- clojurescript × 1
- closures × 1
- cloud × 1
- cms × 1
- coding diacritics × 1
- color highlighting × 1
- color zones × 1
- combinator × 1
- combinators × 1
- compile × 1
- compile code on server × 1
- config × 1
- confirm × 1
- content × 1
- context × 1
- context.usersession × 1
- continuation-passing style × 1
- coords × 1
- cordova × 1
- cors × 1
- coursera × 1
- cross-domain × 1
- csla × 1
- current_schema × 1
- custom content × 1
- data × 1
- data grid × 1
- datetime × 1
- debug × 1
- declarative × 1
- delete × 1
- devexpress × 1
- dhtmlx × 1
- dictionary × 1
- directattribute × 1
- disqus × 1
- distance × 1
- do binding × 1
- doc elt ui.next upgrade × 1
- docker × 1
- dojo × 1
- dol × 1
- dom × 1
- domain × 1
- du × 1
- duf-101 × 1
- dynamic × 1
- eastern language × 1
- eclipse × 1
- edsl × 1
- em algorithm × 1
- emacs × 1
- emotion × 1
- enums × 1
- error × 1
- etw × 1
- euclidean × 1
- eventhandlerlist × 1
- examples × 1
- ext js × 1
- extension methods × 1
- extra × 1
- facet pattern × 1
- failed to translate × 1
- fake × 1
- fantomas × 1
- fear × 1
- float × 1
- form × 1
- form-data × 1
- forum × 1
- fp × 1
- frank × 1
- fsdoc × 1
- fsharp × 1
- fsharp.core × 1
- fsharp.powerpack × 1
- fsharpx × 1
- fsunit × 1
- function × 1
- functional style × 1
- game × 1
- games × 1
- gc × 1
- generic × 1
- geometry × 1
- getlastwin32error × 1
- getting-started × 1
- google × 1
- google.maps × 1
- grid × 1
- group × 1
- guide × 1
- hash × 1
- headers × 1
- hello world example × 1
- heroku × 1
- highchart × 1
- history × 1
- how to × 1
- html-templating × 1
- http405 × 1
- httpcontext × 1
- hubfs × 1
- i18n × 1
- ie 8 × 1
- if-doc × 1
- iis × 1
- image × 1
- images × 1
- inheritance × 1
- initialize × 1
- input × 1
- install "visual studio" × 1
- installer × 1
- int64 × 1
- interfaces × 1
- internet explorer × 1
- interop × 1
- interpreter × 1
- io × 1
- iobservable × 1
- ios × 1
- iot × 1
- ipad × 1
- isomorphic × 1
- javascript optimization × 1
- javascript semanticui resources × 1
- jquery-plugin × 1
- jquery-ui × 1
- jquery-ui-datepicker × 1
- js × 1
- kendo datasource × 1
- kendochart × 1
- kendoui compiler × 1
- knockout × 1
- l10n × 1
- learning × 1
- library × 1
- libs × 1
- license × 1
- licensing × 1
- lineserieszonescfg × 1
- local setting × 1
- localization × 1
- logging × 1
- loop × 1
- macros × 1
- mailboxprocessor × 1
- mapping × 1
- maps × 1
- markerclusterer × 1
- markup × 1
- marshal × 1
- math × 1
- mathjax × 1
- message × 1
- message passing × 1
- message-passing × 1
- meta × 1
- metro style × 1
- micro orm × 1
- minimum-requirements × 1
- mix × 1
- mobile installation × 1
- mod_mono × 1
- modal × 1
- module × 1
- mouseevent × 1
- mouseposition × 1
- multidimensional × 1
- multiline × 1
- multithreading × 1
- mysql × 1
- mysqlclient × 1
- nancy × 1
- native × 1
- nested × 1
- nested loops × 1
- node × 1
- nunit × 1
- object relation mapper × 1
- object-oriented × 1
- om × 1
- onboarding × 1
- onclick × 1
- optimization × 1
- option × 1
- orm × 1
- os x × 1
- output-path × 1
- override × 1
- paper × 1
- parameter × 1
- persistence × 1
- persistent data structure × 1
- phonegap × 1
- pola × 1
- post × 1
- powerpack × 1
- prefix tree × 1
- principle of least authority × 1
- privacy × 1
- private × 1
- profile × 1
- programming × 1
- project × 1
- project euler × 1
- projekt_feladat × 1
- protected × 1
- provider × 1
- proxy × 1
- ptvs × 1
- public × 1
- pure f# × 1
- purescript × 1
- qna × 1
- quant × 1
- query sitelet × 1
- question × 1
- quotations × 1
- range × 1
- raphael × 1
- razor × 1
- rc × 1
- reactjs × 1
- real-time × 1
- ref × 1
- region × 1
- released in 4.0.190.100-rc × 1
- reporting × 1
- responsive design × 1
- rest api × 1
- rest sitelet × 1
- restful × 1
- round table × 1
- router × 1
- routing × 1
- rpc reverseproxy × 1
- runtime × 1
- sales × 1
- sample × 1
- sampleapp × 1
- scriptcs × 1
- scripting × 1
- search × 1
- self hosted × 1
- semanticui × 1
- sequence × 1
- serialisation × 1
- service × 1
- session-state × 1
- sharepoint × 1
- signals × 1
- sitelet website × 1
- sitelet.protect × 1
- sitlets × 1
- slickgrid × 1
- source code × 1
- sqlentityconnection × 1
- ssl × 1
- standards × 1
- static content × 1
- stickynotes × 1
- streamreader × 1
- stress × 1
- strong name × 1
- structures × 1
- submitbutton × 1
- subscribe × 1
- svg example html5 websharper.ui.next × 1
- sweetalert × 1
- system.datetime × 1
- system.reflection.targetinvocationexception × 1
- table storage × 1
- targets × 1
- tdd × 1
- templates ui.next × 1
- templating × 1
- text parsing × 1
- three.js × 1
- time travel × 1
- tls × 1
- tooltip × 1
- tracing × 1
- tsunamiide × 1
- turkish × 1
- twitter-bootstrap × 1
- type erasure × 1
- type inference × 1
- type providers × 1
- type-providers × 1
- typeprovider × 1
- ui next forms × 1
- ui-next × 1
- ui.next jqueryui × 1
- ui.next charting × 1
- ui.next formlets × 1
- ui.next forms × 1
- ui.next suave visualstudio × 1
- ui.next templating × 1
- unicode × 1
- unittest client × 1
- upload × 1
- usersession × 1
- validation × 1
- vb × 1
- vb.net × 1
- vector × 1
- view.map × 1
- visal studio × 1
- visual f# × 1
- visual studio 11 × 1
- visual studio 2012 × 1
- visual studio shell × 1
- vs2017 compiler zafir × 1
- vsix × 1
- web api × 1
- web-scraping × 1
- webapi × 1
- webcomponents × 1
- webforms × 1
- webgl × 1
- webrtc × 1
- webshaper × 1
- websharper async × 1
- websharper codemirror × 1
- websharper f# google × 1
- websharper forms × 1
- websharper reactive × 1
- websharper rpc × 1
- websharper sitelets routing × 1
- websharper warp × 1
- websharper-interface-generator × 1
- websharper.chartsjs × 1
- websharper.com × 1
- websharper.exe × 1
- websharper.owin × 1
- websharper.ui.next × 1
- websharper.ui.next jquery × 1
- websockets iis × 1
- why-websharper × 1
- windows 7 × 1
- windows 8 × 1
- windows-phone × 1
- winrt × 1
- www.grabbitmedia.com × 1
- xamarin × 1
- xml × 1
- yeoman × 1
- yield × 1
- zafir beta × 1
- zafir websharper4 × 1
- zarovizsga × 1
![]() |
Copyright (c) 2011-2012 IntelliFactory. All rights reserved. Home | Products | Consulting | Trainings | Blogs | Jobs | Contact Us | Terms of Use | Privacy Policy | Cookie Policy |
Built with WebSharper |
Is it possible to make Tomas Petricek's following code sample generic so that a function value can be passed in to perform the populate of the record enclosed in the yield statement? In other words is it possible to make a seq yield generic?
let GetPhotos (albumID:int) = seq {
use conn = new DynamicSqlConnection(connectionString)
use cmd = conn?GetPhotos
cmd?AlbumID <- albumID
cmd?IsPublic <- true
// Run the command and read results into an F# record
conn.Open()
use reader = cmd.ExecuteReader()
while (reader.Read()) do
yield { PhotoID = reader?PhotoID
PhotoAlbumID = reader?AlbumID
PhotoCaption = reader?Caption } }
omas Petricek's excellent blog of dynamicsql connection