Storing and retrieving datatable from session

Question

How to store a datatable in session and to retrieve the values from the session in c  net

User · Answer

To store DataTable in Session   DataTable dtTest   new DataTable    Session  dtTest     dtTest     To retrieve DataTable from Session   DataTable dt    DataTable  Session  dtTest

User · Answer

You can do it like that but storing a DataSet object in Session is not very efficient  If you have a web app with lots of users it will clog your server memory really fast   If you really must do it like that I suggest removing it from the session as soon as you don t need the DataSet

User · Answer

Add a datatable into session   DataTable Tissues   new DataTable     Tissues   dal returnTissues  TestID    TestValue      returnTissues        sample     function for adding values   Session Add  Tissues   Tissues     Retrive that datatable from session   DataTable Tissues   Session  Tissues   as DataTable   or  DataTable Tissues    DataTable Session  Tissues

User · Answer

this is just as a side note  but generally what you want to do is keep size on the Session and ViewState small  I generally just store IDs and small amounts of packets in Session and ViewState   for instance if you want to pass large chunks of data from one page to another  you can store an ID in the querystring and use that ID to either get data from a database or a file   PS  but like I said  this might be totally unrelated to your query

User · Answer

A simple solution for a very common problem                      DECLARATION                 HttpContext context   HttpContext Current                  DataTable dt ShoppingBasket   context Session  Shopping Basket   as DataTable                      TRY TO ADD rows with the info into the DataTable                 try                                          Add new Serial Code into DataTable dt ShoppingBasket                     dt ShoppingBasket Rows Add new SerialCode ToString                             Assigns new DataTable to Session  Shopping Basket                       context Session  Shopping Basket     dt ShoppingBasket                                    catch  Exception                                           IF FAIL  EMPTY OR DOESN T EXIST  -                         Create new Instance                       DataTable dt ShoppingBasket  new DataTable                            Add column and Row with the info                     dt ShoppingBasket Columns Add  Serial                        dt ShoppingBasket Rows Add new SerialCode ToString                             Assigns new DataTable to Session  Shopping Basket                       context Session  Shopping Basket     dt PanierCommande                                          PRINT TESTS                 DataTable dt To Print   context Session  Shopping Basket   as DataTable                   foreach  DataRow row in dt To Print Rows                                        foreach  var item in row ItemArray                                                Debug WriteLine  DATATABLE IN SESSION      item

[c#] Storing and retrieving datatable from session

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