Good day or night,
1)I have a problem with Sharepoint.
2)Ineed to make filter from multimle lookup second listbox2.(It is on NewForm.aspx in sharepoint designer)
3)Problem: get items in C# from lookup listbox2 on sharepoint site.
What i have: Multiple lookup. With button "add" from listbox1 we can add multiple items to listbox2.
I need get this item to C#. It needs for listbox3(which I create in C#) with CALM query to filter all items what connected only form items what we have choose in listbox2.
4)My tryings: On Shapepoint page with F12 I open source code select listbox2 and get name and ID
In C# with recursion find all controls with names and ID.
And find usefull control. After that with recursion and table name get litbox2 control than wont get all items from listbox2. Igave control but it anything contain, all time a have null.
I thought that problem with page life cycle. Use Page Onload, PreRender but result is null.
Problem with control?
Can you advice how i can get items in C# from listbox2 or better with simple example (all in NewForm.axp when we wont make new row in sharepoint)?
But in script is problem the PATH i dont know how to put properly to sharepoint page.
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