Skip to main content

SharePoint Collection Enumeration: Did you know that....

This one time I was trying to programmatically modify an SPListCollection, and I stabled into the error "Collection was modified; Enumeration operation may not execute". This error came about during the code block that looped through the SPListCollection and attempting to update the collection.

After some research, I came to find out that it was because I was using "foreach" enumerator, and enumerators can be used to read items in a collection but can not be used to modify them. This was also true for the SPWebCollection, SPListItemCollection, SPFieldCollection etc. I hope this was helpful to someone. Happy coding.



Labels:

Comments

Post a Comment

Popular posts from this blog

Zambia's first K2 BlackPoint roll-out

Reporting to you live from Code|Influence... My colleague and I have been managing our organization's SharePoint infrastructure for some time now and we have just rolled out the first K2 BlackPoint in the country, intended mostly for SharePoint workflow developments.
8 comments
Read more

Zambia's first Helpdesk System on SharePoint

For my 25th birthday today 3rd March, 2009, allow me to present to you another first of its kind in Zambia. Yes we have done it again, having been Project manager, I present to you Zambia's first Helpdesk System which Masialeti and I have developed on Microsoft Office SharePoint Server 2007. The system also implements SharePoint designer workflows, Infopath forms, SharePoint document library and sends email notifications to the relevant personnel. When a user logs in a call, the user automatically receives a mail from the system, telling them that their call has been received and is being attended to, IT section will also receive a notification and the helpdesk manager will assign the call to the right IT guy who will also automatically receive a mail notification from the system. When the call is resolved, the user again automatically gets notified by the system with a mail giving them description of the problem they logged and also how it has been resolved. The user also has an ...
7 comments
Read more

How to document your SharePoint Projects.

Here are the essential documents you need to complete… Initiation Business Case: To justify the financial investment in your SharePoint Project, you need to write a Business Case. It lists the costs and benefits, so everyone knows what the return on investment will be. Feasibility Study: Before you kick-off your SharePoint Project, you need to determine whether your project is feasible, using a Feasibility Study. SharePoint Project Charter: You then need to document the objectives, scope, team, timeframes and deliverables in a SharePoint Project Charter. Planning SharePoint Project Plan: You need to create a Project Plan listing all of the tasks required to undertake your SharePoint Project from start to finish. Every task must be scheduled, so you know what needs to be done and when. Resource Plan: Next, you need to plan your resources by documenting the money, equipment and materials needed for your SharePoint Project. Quality Plan: You then need to set quality targets, so that the S...
4 comments
Read more