List
The Problem: Allowing Only One Submission Per Day Enforcing a limit of one list item submitted per user per day can be important to prevent spamming or abuse. Reasons to enforce this include: Preventing users from flooding lists with multiple items, which can impact performance Restricting promotional posts or inappropriate content Making sure all users…
What is CAML and Why Use Query Operators? Collaborative Application Markup Language (CAML) is an XML-based querying language used in Microsoft SharePoint to define queries against list data. CAML provides a wide range of operators that allow performing powerful lookups, filtering, and shaping of SharePoint list content. Some common CAML query operators include: Eq –…
The Problem: Managing Large Amounts of Data SharePoint offers robust options for organizing and managing content, but loading large amounts of data can be cumbersome without the right approach. CAML queries allow you to insert, update, or delete folders, subfolders and files in bulk while avoiding throttling limits. Querying Folders and Subfolders Overview of folder…
Displaying Long Lists in SharePoint As a SharePoint site collects more data over time, the lists and libraries within can grow extremely long with thousands of items which present challenges for rendering and managing long lists. Out-of-the-box, SharePoint displays only a limited number of list items per page, usually 20 items. So when a list…
The Problem: Recursive vs RecursiveAll When querying items in SharePoint libraries using CAML (Collaborative Application Markup Language), a common challenge is understanding the difference between a recursive and recursiveAll query. Both retrieve items from folders within the library, but have different scope and performance implications. A recursive query retrieves items only from the current folder…
The Problem of Large Lists As SharePoint lists grow to contain thousands or millions of items, significant performance issues emerge when trying to retrieve full sets of list data. The default SharePoint paging approaches load entire result sets into memory before applying limits, resulting in long response times and frequent timeout errors. To avoid full…
Accessing Documents with CAML Queries Collaborative Application Markup Language (CAML) queries allow developers to retrieve items from SharePoint lists and document libraries in a precise and efficient manner. By crafting a CAML query, users can filter, sort, and limit the results to include just the items they need. The CAML language contains specifically defined XML…
What are Cascading Lookup Columns? Cascading lookup columns are a type of lookup field in SharePoint lists and libraries that allow the available options in one lookup column to be determined by the value selected in another lookup column. The selections made in the first lookup column will filter and constrain the options presented in…
What are Filtered Lookup Fields Filtered lookup fields are a type of lookup field in SharePoint that allows users to filter the values available for selection based on predefined criteria. They serve the purpose of only showing relevant options to users by connecting items between SharePoint lists and libraries based on metadata and column values….
The Problem of Slow Batch Deletes Large SharePoint lists with over 100,000 items often experience poor performance when attempting to run batch delete operations. There are several reasons why deleting a large number of items from SharePoint becomes exponentially slower as the list grows. SharePoint stores list items in a SQL Server content database, within…