C# - Populate Textbox From Checkbox List Using AJAX

Aug 2, 2010

I have a textbox control and a checkbox list control on my page.

I am first populating my checkbox list with a list of employee objects in the code-behind. An employee has an id and a name. Both are displayed in the checkbox list like so:

Jim (1)
Alex (2)
Gary (3)

When a user checks one of the boxes, the employee's name needs to be populated in the textbox. So if Jim is selected, the textbox value is "Jim". It also needs to support multiple values, so if Jim and Gary are selected, the textbox value is "Jim, Gary".

Also, if a user enters a valid value in the textbox, the correct employee should be checked. This needs to support names and id's. So if I enter "1,Alex" in the textbox and then click outside the textbox, Jim and Alex should be selected.

I'm using ASP.NET and I need to do this using AJAX, but I have no experience with using jQuery and AJAX. Could someone show me a simple example of how to do this?

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