דערהייַנטיקן (04/2008): דאס גרויס בלאָג פּאָזיציע ווייזט אַ גוט דזשאַוואַסקריפּט באזירט צוגאַנג צו דעם פּראָבלעם: http://webborg.blogspot.com/2008/04/add-functions-and-events-to-sharepoint.html

דערהייַנטיקן וו: (04/2008): דעם בלאָג פּאָזיציע קוקט פּראַמאַסינג ווי געזונט: http://www.cleverworkarounds.com/2008/03/13/free-mosswss-2007-web-part-hide-controls-via-javascript/

עטלעכע מאל אַ וואָך, אויב נישט טעגלעך, forum users describe a requirement that would normally be met via cascading drop-downs. לעמאָשל, איך האב צוויי פאַלן-אַראָפּ קאָנטראָלס:

• רשימה פון יוז. שטאַטן
• רשימה פון יוז. cities.

As responsible UI providers, we want it to operate like this:

• Paul selects a U.S. state from the drop-down.
• This causes the cities drop-down to filter only those cities that belong to the selected state.
• Paul selects a city from this filtered list.

There is no out-of-the-box support for this feature. אין פאַקט, there is no OOB support for any kind of direct intra-form communication. This includes programmatically hiding/enabling/disabling fields in response to field changes elsewhere on the form.

The real objective of this article to to describe possible solutions and these are the options as I know them:

1. Develop a custom column type. As a custom-column-developer, you have full control over the "world" of that custom column. You can implement a cascading drop-down that way.
2. Consider using workflow. In some cases, you want to automatically assign a value to field based on another field’s value. אין דעם פאַל, you would normally try to use a calculated column, but some times, it just won’t get the job done. SharePoint Designer workflow is a relatively administer-friendly alternative to dropping down into code and visual studio. If you go this route, be aware of the issue addressed by דעם אַרטיקל (http://paulgalvin.spaces.live.com/blog/cns!CC1EDB3DAA9B8AA!405.entry).
3. Event handlers: Like workflow, this is an after-the-fact solution. Your event handler is a .NET assembly (C #, VB.NET) to which SharePoint passes control. The object you develop has access to the data of the list (and the whole object model) and can do any needed calculation.
4. Use SharePoint Designer to create custom entry forms. I don’t have direct experience with this approach, אָבער איך הערן זיי טאָן גוט טינגז מיט NewForm.aspx די טעג 🙂
5. Roll your own ASP.NET data entry function (as a stand-alone web page or as a web part) and use that instead.

If anyone knows other and/or better options, please post a comment and I’ll update the body of this post.

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