Choose Columns for Your View in SharePoint 2010
When you choose the columns to display in your SharePoint 2010 view, you see many columns that are usually behind the scenes, including Edit menu options. These include
Edit (Linked to Edit Item): Displays an icon that a user can click to edit the item. This column is useful when you don’t want to display the Title column.
Title (Linked to Item): Displays the Title column with a hyperlink to the list item or document. When a user clicks the hyperlinked title, a web page opens and displays the list item or opens the document.
Title (Linked to Edit with Edit Menu): When a user hovers her mouse over this column, the Edit menu appears.
Other columns you may have available to add to your view include
ID displays the identity number of the item. The ID number is used to display the item’s values in a form.
Version displays the version number of the item or document. This allows you to easily see what the latest version of a document is.
Checked Out shows who has the document checked out.
Folder Item Count displays the number of folders contained within a folder.
Child Item Count displays the number of items contained with a folder.
Content Type displays the content type associated with the list item or document. When this column is displayed in Datasheet view, you can change the content type associated with the item.
When you create a view, you often realize that you want to display a column that's based on a value calculated from another column. For example, if your list displays an anniversary date, you may want to calculate years of service. You can do that by creating a new column and then displaying it in your view.