C rowupdating cancel dr ronn elmore no nonsense dating

I have a gridview and sqldatasource assigned to it. If I do not assign sqldatasource.updatecommand to it (when some condition does not meet), I get error: "Updating is not supported by data source unless Update Command is specified." How can I suppress this error message?Row editing and Row canceling editing working fine; but when I press update after changing the value in textbox, it show the old value not that value that I have change. This cost is much more severe if we unnecessarily create many server roundtrips for a task that could be done in a single roundtrip, namely by using a SQL bulk .

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The below is my connection string which is stored in web.config file. If you are using my database, just copy and paste the code or use the attached application.

You can change this connection string according to your SQL server database setting. If you want use my database file then attach that file. If you are using your database, you need to replace column binding with your database table columns.

) Or, by emulating anonymous blocks using the JDBC batch API (has its limitations), or by writing stored procedures.

The performance gain is not always worth the trouble of moving logic from the client to the server, but very often (as in the above case), the move is a no-brainer and there's absolutely no reason against it.

So, remember: stop doing row-by-row (slow-by-slow) operations when you could run the same operation in bulk, in a single SQL statement.

Hint: Always know what your ORM (if you're using one) is doing, because the ORM can help you with automatic batching/bulking in many cases. This does save a lot of time on the network and all the layers in between.The code looks like this: As shown previously on this blog, there is a significant cost of JDBC server roundtrips, which can be seen in the JDBC benchmark.The difference is much more drastic if each call to the SQL engine has to be done over the network from another process.Again, the benchmark code is available from a gist, and I will paste it to the end of this blog post as well.This function is use to fetch data from the Vendor table, fills data in a Data Table object and find it to a Grid View control using the Data Source property. For more information I am attaching my test application and database, so download it for better result and if you liked this article or you have any advice about my any article don't be hesitate drop me a comment on c-sharpcorner comment section.

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