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SPField.Update method

Updates the database with changes that are made to the field.

Namespace:  Microsoft.SharePoint
Assembly:  Microsoft.SharePoint (in Microsoft.SharePoint.dll)

'Declaration
PublicOverridableSubUpdate
'Usage
DiminstanceAsSPField

instance.Update()

ExceptionCondition
SPException

An error was encountered during the operation.

The following code example updates the display name, default value, and description for the specified field.

Dim siteCollection As SPSite = SPContext.Current.Site
Dim list As SPList = 
    siteCollection.AllWebs("Site_Name").Lists("List_Name")
Dim field As SPField = list.Fields("Field_Name")

field.DefaultValue = "Default_Value"
field.Description = "Description"
field.Title = "New_Field_Title"

field.Update() 
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