Hello, Quick intro, My name is Jason and recently a work colleague retired and had developed several ASPX websites of which I have been tasked to support. My previous background of programming is around Delphi, Intersystems Cache and more recently C# but these websites that I'm now supporting are all written in VB.net, asp.net, aspx or whatever language it is called, as you have probably guessed by now I have never used Visual Studio or produced code that created aspx files. Anyway as a newbie to this language I have run into a problem that you experts will have learnt in school :-) I have a webpage (student.aspx) that contains this snippet of code :

I have added the "onChange" bit and this bit of code is also existing

So basically the page contains several combo boxes and several check boxes I need to do some logic for 2 of them, code above. If the combo box contains text (from database) with the word Nursing, Nurse, Nurses etc. lets say "*Nurs* then teh tick box needs to be disabled so it cannot be ticked This is the code I have done in the code behind file student.aspx.vb, it just contains a comment now

Function CheckNerveCenter() As Object
    'If ID="ddlCourse" contains any word like "\*Nurs\*" then 
    'uncheck ID="chkNerveCentre" and then disable ID="chkNerveCentre"
End Function

At first I tried to get it to display a message to show that it was calling the function from the "onChange" but it doesn't seem to work. As I'm new to this language would you please just help a newbie in the right direction I did try and use the OnChangeText in visual studio but it just kept showing me this error "Property Value not valid","Error HRESULT E_FAIL has been returned from a call to a COM component." I have no idea what this means That's why I decided to try and use a function of my own but now stuck Any ideas please? Jason