Updating data in database in asp net
This article shows how to display real time sql server database change notification in ASP.
NET using Signal R and Sql Dependency object which represents a query notification dependency between an application and an instance of SQL Server. On database change, dependency_On Change method is triggered which calls Show method of signal R Hub.
In practical scenario you should use your existing architecture to populate and update the data.
In this article, I am going to take a simple database table that has following fields: Auto ID - Int, Auto Increment, Primary Key Page Name - Varchar(50) Page Description - Varchar(500) Active - Bit(1) In this article, I am not going to explain the workings of Sql objects but focusing on the events and methods of the Grid View that will help us in updating and deleting the records.
Rows in the source are matched with rows in the target based on the join predicate specified in the ON clause. One insert, update, or delete operation is performed per input row.
In this article, I am going to explain how to manipulate data using Grid View control.This article scope is limited to Updating and Deleting records using Grid View and I am not using any readymade Data controls for that but manually writing all event methods.I will be using Sql objects directly into methods to keep the example simple and straight forward.Presume that the Tickets table has a Ticket Template Id field that indicates what template is to be applied to the ticket. Once this value has been assigned, the following UPDATE statement could be executed to copy the template's pre-defined values to the non-assigned data points in the Tickets table: UPDATE Tickets SET Priority Id = ISNULL(Tickets.