Gets or sets a value indicating whether the value of the field can be modified in edit mode.
Assembly: System.Web (in System.Web.dll)
Use the property to prevent the values displayed in a BoundField object from being modified. When a data-bound control is in edit mode, fields that are read-only are displayed as plain text, without any editing controls.
The property applies only to edit mode. To prevent fields from showing up in insert mode, use the InsertVisible property.