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Convert Generic List to datatable

Posted on 2011-09-21
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Last Modified: 2013-11-27
I have a payment stream that gets created as a generic list

I want to convert it to a Datatable to pass into SQL

This will be on a vb web page.
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Question by:lrbrister
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Bob Learned earned 500 total points
ID: 36573988
If you have access to LINQ (framework version 3.5 or greater), than there is LINQ to DataSet extensions.

Creating a DataTable From a Query (LINQ to DataSet)
http://msdn.microsoft.com/en-us/library/bb386921.aspx


Dim book1 As New Book()
book1.Id = 1
book1.Price = 13.5
book1.Genre = "Comedy"
book1.Author = "Gustavo Achong"

Dim book2 As New Book
book2.Id = 2
book2.Price = 8.5
book2.Genre = "Drama"
book2.Author = "Jessie Zeng"

Dim movie1 As New Movie
movie1.Id = 1
movie1.Price = 22.99
movie1.Genre = "Comedy"
movie1.Director = "Marissa Barnes"

Dim movie2 As New Movie
movie2.Id = 1
movie2.Price = 13.4
movie2.Genre = "Action"
movie2.Director = "Emmanuel Fernandez"

Dim items(3) As Item
items(0) = book1
items(1) = book2
items(2) = movie1
items(3) = movie2

' Create a table with a schema that matches that of the query results.            
Dim table As DataTable = New DataTable()
table.Columns.Add("Price", GetType(Integer))
table.Columns.Add("Genre", GetType(String))

' Query for items with price greater than 9.99.
Dim query = From i In items _
            Where i.Price > 9.99 _
            Order By i.Price _
            Select New With {i.Price, i.Genre}

query.CopyToDataTable(table, LoadOption.PreserveChanges)

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Author Closing Comment

by:lrbrister
ID: 36574026
Perfect.  Thanks
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