I notice a code inside the link - Update Sharepoint List Item can update the SharePoint List. However, I could not find much information on the following matters:
[1] ASPX code to perform reading of items (based on a criteria) inside SharePoint List. (This include deletion of its parent or children items if it is a lookup field)
[2] ASPX code to perform creating item(s) in SharePoint List.
[3] ASPX code to perform delete of items (based on a criteria) inside SharePoint List.
[4] How to create the above ASPX code (is it inside Visual Studio > ASP.NET Web Application or I can just create a single ASPX file using a notepad)?
[5] Do I need to import SharePoint.dll and what are the steps in creating such web application?
Thanks.
Wilson