TypeConverter for a StringCollection or a Generics list

Discussion in 'ASP .Net Building Controls' started by Imar Spaanjaars, Apr 8, 2008.

  1. Hello everyone,

    I am trying to write a TypeConverter for a property of type StringCollection
    or List<string> that I want to persist as a comma separated value in my own
    server control. E.g. in markup I want to be able to use this:

    <isp:SomeControl Value="1,2,3" runat="server" ID=MyControl" />

    While in code, I want to be able to use something like:

    MyControl.Value.Add(1);

    Can anyone point me in the right direction on how to do this? I looked at
    the StringArrayConverter in the WebControls namespace which seems close to
    what I want to accomplish but I couldn't make it work.

    I tried different flavors of code involving ITypeDescriptorContext, various
    CanConvert* methods etc but none seem to work so far. I either get no
    results, or I get run-time errors.

    In case anyone wants to give this a try, here's the code for the actual
    control with the StringCollection property and the converter:

    (Converter)
    http://imar.spaanjaars.com/Downloads/Other/ServerControls/StringCollectionTypeConverter.txt

    (Control)
    http://imar.spaanjaars.com/Downloads/Other/ServerControls/ModuleSettings.txt

    Any help would be greatly appreciated. I posted this question a few months
    ago as well, but never got a response. Hopefully, things will be different
    this time. If you need more information, please let me know

    Warm regards,

    Imar
    http://imar.spaanjaars.com/
    Imar Spaanjaars, Apr 8, 2008
    #1
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