how to make text box mandatory on dropdown change

[NK7]

Hi I have one dropdown contain status information. Status are 1. Finished 2. Open 3. Progress Also one date textbox. I want to set the text box is editable and mandatory when i select the status as finished in the dropdown. Otherwise it should accept null values(not mandatory) and read only. Can any one help me please. its urgent. It should be in C# or java script Regards K7

kesavan

[J4amieC]

I would have a requiredfieldvaliadtor on the textbox (and perhaps a regularexpressionvalidator too to ensure a date is entered) but set enabled to false. Then, when the user selects "FInished" from the dropdown, enable the validators.

[Abhijit Jana]

You can simply implement it using AJAX Update Panel or JavaScript. You need to check the Selected value from dropdown list, and based on that you have enable/disable the Textbox. To avoid the un-necessary postback you have to use AJAX Updatepanel or Javscript :)

Abhijit Jana | Codeproject MVP Web Site : abhijitjana.net Don't forget to click "Good Answer" on the post(s) that helped you.