Tracking only the modified values within the asp.net repeater - a step-by-step guide

In my editable nested repeater, I have data that is displayed to the user and also used for saving any updates made by the user. I am looking for a way to detect when a specific cell/row has been modified so that I can update only that row in the database without saving all the data again. Should I use JavaScript or server-side code to accomplish this? What would be the best technique?

Resource   | Week1  Week2  Week3  | Total
ABC        | XYZ    10     15     20    | 45

This is the structure of the repeater with the middle section (Weeks showing hours worked by resource) being the editable nested repeater. The values can only be changed within the nested repeater. Each resource has a unique ID maintained in a hidden field.

Do you have any suggestions on how I can achieve this functionality effectively?

c#javascriptasp.net

Answer №1

Your ORM typically handles this task, but you have the option to take care of it yourself if desired. This concept is known as 'change tracking', where the usual practice involves retrieving the data from the database, comparing it to new values, and then updating it accordingly.

Depending on your approach to concurrency, you may also consider using a hash of the initial values sent to the client, saved in a hidden field for reference. This allows you to compare the original data with what is currently stored in the database to prevent unintended overwrites of other users' modifications.

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