Generated Form Data Automatically

Seeking advice on achieving a specific functionality in ASP.NET Web Form that is similar to the AutocompleteExtender, but requires more flexibility. Here is what I aim to accomplish:

  • There are 2 TextBox fields on the form: CompanyName and CompanyRef (a unique abbreviated identifier for companies).
  • User enters the CompanyName.
  • Once there are 3 characters in the CompanyName field, an internal webservice is triggered (possibly AJAX).
  • The webservice evaluates the entered text and generates a 3-character representation - for example, "Stack" might result in STA0001.
  • If STA0001 already exists in the database, the webservice would return STA0002 or the next available variation.
  • The generated value will be populated into the CompanyRef TextBox.
  • Users should have the ability to edit the CompanyRef if needed.

I am not looking for specific code examples, but rather guidance on how to approach this task at a higher level. If there are any missing components or resources you can suggest, it would be greatly appreciated as my searches online haven't yielded helpful results so far. Maybe I'm not using the right search terms.

asp.netjavascriptajaxwebforms

Answer №1

Creating the CompanyRef can be a straightforward process. Numerous resources are available that provide information on combining an autonumber or counter with a string. However, I have reservations about your approach of allowing users to manipulate the reference and create their own. What is the purpose behind this?

[UPDATE - Response to comment]

The character limit in the comment box prevented me from fully addressing your query (and I am still adjusting to the guidelines here...)

You could utilize AJAX to access the web service and retrieve the current available values, then use javascript to update the field accordingly. Yet, there is a potential issue where a user may select a value that becomes unavailable by the time it reaches the database. Consequently, you may need to conduct a final check, resulting in a message to inform the user that they cannot use the value they initially chose. The likelihood of this occurrence depends on the number of simultaneous users on your platform.

I have written an article on utilizing jQuery to call web services, which might serve as a helpful starting point for implementing the AJAX feature:

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