Updating records using linq Futa dating site

13-Apr-2017 18:21

While you are at it, you will also change the user interface to make data entry easier. NET Framework component that adds native data querying capabilities to . In other words LINQ has the power of querying on any source of data (Collection of objects, database tables or XML Files).Note: This is not a very good example from the standpoint of keeping the Adventure Works database clean and correct, we are only interested in meeting each of the SQL Constraints, not the business logic. Creating a new record keeps with the mind set of working with objects, so you simply create a new object of the appropriate record type and set its properties.will wrap up all of the changes you have made to the database and submit them as a single transaction, this is good news because if any of them changes fail, they all fail. When linking two records together, you have two choices, both of which I have given an example of.

Is this a possibility in LINQ (I'm completely new to LINQ)?

Introduction In this article I am performing simple operations like save, delete, update and search operations in a Windows Forms application. Then I am calling the Execute Non Query() method in a try block.

In this example my database name is "STUDENT" and database table is "student_detail" which has four columns as "roll_no", "s_name", "age" and "course". In the next, an instance of a Sql Command class is created and a SQL statement for inserting values into the database table is specified.

When I tried to call above function to update Person with ID 1, I encountered with below exception To get rid of above exception, you need to call attach with original entity as well.

We need to pass modified entity as well as original entity to make a call.

Is this a possibility in LINQ (I'm completely new to LINQ)?Introduction In this article I am performing simple operations like save, delete, update and search operations in a Windows Forms application. Then I am calling the Execute Non Query() method in a try block. In this example my database name is "STUDENT" and database table is "student_detail" which has four columns as "roll_no", "s_name", "age" and "course". In the next, an instance of a Sql Command class is created and a SQL statement for inserting values into the database table is specified.When I tried to call above function to update Person with ID 1, I encountered with below exception To get rid of above exception, you need to call attach with original entity as well.We need to pass modified entity as well as original entity to make a call.I think this is enough code to make sense of what I'm doing, but if more is needed just let me know and I can post it up as well.