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Updating dbml files

updating dbml files-86

It does not support Xml Serializer or Binary Formatter. This approach eliminates the name/namespace collision. I get an error when I drag tables out of a SQL Server Compact 3.5 database. The Object Relational Designer does not support SQL Server Compact 3.5, although the LINQ to SQL runtime does. You must provide information such as the discriminator column, base class discriminator value, and derived class discriminator value. Code generation in LINQ to SQL supports Data Contract Serializer serialization. When I have multiple DBML files that share some tables in common, I get a compiler error. Set the Context Namespace and Entity Namespace properties from the Object Relational Designer to a distinct value for each DBML file. In other cases, you should manually set Is Db Generated= Q.

This section explains how to enable the save button and implement save functionality for LINQ to SQL objects.Finally, the steps for using stored procedures to replace the default LINQ to SQL logic for sending updates from the entity classes to the database are provided.During this walkthrough, you will learn how to perform the following tasks: Your computer might show different names or locations for some of the Visual Studio user interface elements in the following instructions.The following sections answer some common issues that you might encounter when you implement LINQ. For more information, see Learning by Walkthroughs. I made a change to data in the database, but when I reran my application, the change was no longer there. Make sure that you call Submit Changes to save results to the database. In common scenarios where each object is processed only one time, the streaming model is superior in both Q. Additional issues are addressed in Troubleshooting. Can I update table data without first querying the database? Although LINQ to SQL does not have set-based update commands, you can use either of the following techniques to update without first querying: Q. This walkthrough provides the steps that you must follow to create LINQ to SQL entity classes mapped to the Customers and Orders tables in the Northwind database and display the data on a Windows Form.

In addition to the steps for displaying the data from the table, the steps for binding data to a LINQ query are also provided.

Surely there is a more suitable way to update DBML files in Visual Studio 2008?

In this way you dont have to delete the SP from dbml and re-add it to get the updates.

Note also that LINQ to SQL requires the Named Pipes protocol to be enabled. If you expect to take time to process all the results and are not opposed to caching the results, apply To List to the query. LINQ to SQL provides several tools for inspecting the SQL code it generates.

Make sure your connection string is correct and that your SQL Server instance is running. A connection typically remains open until you consume the query results.

There is no way DBML file gets updated as and when you change the SP. Edit the dbml file as xml file (you can use open as xml in VS only) and save the dbml file.