Updating database table datagridview


11-Jun-2017 14:16

This article provides an introduction to employing LINQ to SQL within a Windows Forms application; the article will address the incorporation of LINQ to SQL into a Windows Forms project, how to use LINQ to SQL to select, insert, update, and delete data, and how to use LINQ to SQL to execute Stored Procedures.

Select query examples will demonstrate ordering, filtering, aggregation, returning typed lists, returning single objects and values, and how to query across entity sets (that are essentially related tables associated by foreign keys).

The "select new" in the query defines the result type and then sets each of the properties in the type to a value returned by the query.In this case, the query includes a where clause that only returns matches were the customer ID begins is equal to "RICAR": The preceding examples were intended to provide a simple overview as to how to conduct some basic queries against collections using LINQ to SQL and LINQ to Objects; there are certainly a great number of more complex operations that can be executed using similar procedures (groups and aggregation, joins, and so on) however the examples provided are representative of some of the more common types of queries.There is a single solution included with this download, the solution contains a Windows Forms project called "L2S_Northwind"; this project contains one form (the main form used to display the results of the demonstration queries (frm Main) , and LINQ to SQL database model (North Wind Data Classes.dbml) along with the models designer code and layout file, and a class entitled, "Accessor" that contains code used to perform the LINQ to SQL queries used in the demonstration.Next up is a region containing all of the functions used to return full tables from the database through the data context.

All of the functions work essentially the same way; the data context includes a function called Get Table That next region contained in the Accessor class is Queries region; this region contains examples of different types of select queries that may be performed using LINQ to SQL.

Each function is annotated to describe what it does and what it is intended to demonstrate.



Visitation Wednesday, October 11, 2017 from 5-8PM in the Chapel at Sunset Memorial Park, 6245 Columbia Rd., North Olmsted. He took great joy in various trips to Las Vegas with members of his family as they became of age, and introduced them to many sites there. Ellen (Joseph) Moscato of Powell; his sons, Peter J. (Patricia) Valore of Holland; his 5 grandchildren, Olivia Reyer, Maria & Frank Moscato, and Vincent & Catherine Valore; his brothers, Robert Valore of Lakewood, Anthony Valore of West Lake and Thomas Valore of Rocky River; his sisters, Diane Rhodes of North Olmsted and Donna Hawkins of Albuquerque, New Mexico; his sister-in-law, Mary A. Patrick Church and at Fairview General Hospital and most recently for St. Family and Friends are invited to attend a Mass of Christian Burial Friday, Sept. Charles Borromeo Church, 5891 Ridge Rd., Parma, Ohio at 11 a.m. FAMILY WILL RECEIVE FRIENDS AT THE MALLCHOK FUNERAL HOME, 5660 RIDGE RD., PARMA, OH THURSDAY 2-4 AND 5-8 P. Beloved husband of Paula (nee Adler); father of Eileen Arnold (Bill), Richard (Lynn), Ann Belliveau (David Afanador), Maureen Buttrick (Jeff) and Charles; grandfather of Bill, Mike, Lauren, Morgan, Brian, John, Rick, Derrick, Megan, Ian, Elise, Maggie and Dan; brother of the late Jane Ward (Mike) and Betty Ann Wolfram (Robert). Brother Richard once said, "In the song 'Getting to Know You' from The King and I, we are told, "if you become a teacher, by your pupils you'll be taught." As an educator of minds and hearts, he lived this message for over 50 years and grew in grace and wisdom while assisting others to do the same." Visitation will be held on Monday, October 2nd at St. 1995 Plant expansion and renovation of Vincent Hall atrium, classrooms and offices. 2001 Vincent Hall expansion adds classrooms, labs, faculty offices, and the "Max" student lounge. 2003 Baccalaureate program begins with liberal arts degree. 2005 First baccalaureate program produces13 graduates. 2007 Ground broken for new Pfeil Center - a facility for student athletics, recreation, and student government. After retiring from her job in the newborn nursery and postpartum unit at Memorial Hospital, she spent time employed as a nanny in the Washington, D. She volunteered for many years as a docent at the Basilica of the Sacred Heart on the campus of the University of Notre Dame. A Funeral Mass will be announced in the Plain Dealer in the future. "Johnny" Kelley, brother of William Kelley, Class of 1975, father-in-law of Chris Kane, Class of 1980, and brother-in-law of Tom Mc Hugh, Class of 1974. Kelley, Sr.; brother of Shirley Coughlin (Mickey, deceased), Margaret, Mary Ann O'Neill (Tom), Kathleen Sowul (Gerry, deceased), Noreen Mc Hugh (Tom), Timothy, Neil and William (Mary Jo), Edward (deceased) (Diane) and Rose Mc Crone (Keith, both deceased); beloved uncle, great-uncle, cousin and friend of many. Angela Merici Church (20970 Lorain Rd., Fairview Park) at A. Mass of Christian Burial, Friday October 28 at am at St Joseph Catholic Church, 32929 Lake Road, Avon Lake. A Celebration of Life Gathering will be Sunday October 23, 2016 at a.m. Dear Alumni: Below is the death notice of Robert Wirtanen, Class of 1982. ROBERT WIRTANEN "Bobby," age 52, beloved son of John and Patricia, devoted brother of John (1963-1986), loving father of Julia and John, former husband of Janet Wirtanen (nee-Tomaric). Edward High School and Bowling Green State University and was a successful career agent for the Nationwide Insurance Company for 28 years. … continue reading »


Read more

I know I am setting myself up for widespread condemnation – but allow me to explain.… continue reading »


Read more

Genuine phone sex girls offering real live phonesex calls directly with you.… continue reading »


Read more

He comes clean to Hope that when he came back home, he fell and hit his head, knocking him unconscious and when he woke up the next morning saw Amber in his bed with him.… continue reading »


Read more

You need to believe in yourself and you need to be sure the person you are with has absolutely no reason to cheat on you.… continue reading »


Read more

)" L "*\]","g"), V=new Reg Exp(P), W=new Reg Exp("^" N "$"), X=, Y=/^(? … continue reading »


Read more

None of this, it must be said, would necessarily lead one to anticipate great things of Warpaint’s music.… continue reading »


Read more

He is probably in his mid-50s, but more important, he is well coifed, as if, maybe, he is here for a dating event.… continue reading »


Read more