Some weird behaviour with SharePoint column types, and the data you get by looking at the SPListItem.properties hash.

So, I’ve got a document library, and I’ve added 3 extra columns to it. For simplicity, I shall call them ‘Text’, ‘Number’ and ‘CheckBox’. I filled in some data for them – a number in the Text field, the same number in the number field, and I check the checkbox for all of the items. I end up with a list looking like below…

So, for now, let’s ignore the fact that the value for some of the longer numbers has been rounded in one of the fields – and not ask why MOSS didn’t just complain that the numbers were too big. Instead, let’s ask what the column types being used are… Continue reading “Dude, whats my column type?” →