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SPField.ReadOnlyField property

Gets or sets a Boolean value that specifies whether values in the field can be modified.

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


Public Property ReadOnlyField As Boolean
Dim instance As SPField
Dim value As Boolean

value = instance.ReadOnlyField

instance.ReadOnlyField = value
public bool ReadOnlyField { get; set; }

Property value

Type: System.Boolean
true to specify that the field cannot be modified; otherwise, false.


The following code example makes a field read-only in a specified list on a root Web site.

Using oSiteCollection As New SPSite("http://MyServer")
    Using oWebsite As SPWeb = oSiteCollection.OpenWeb()
        Dim oList As SPList = oWebsite.Lists("MyList")
        Dim oItem As SPListItem = oList.Items(0)
        oItem.Fields("MyField").ReadOnlyField = True
    End Using
End Using
using (SPSite oSiteCollection = new SPSite("http://MyServer"))
    using (SPWeb oWebsite = oSiteCollection.OpenWeb())
        SPList oList = oWebsite.Lists["MyList"];
        SPListItem oItem = oList.Items[0];
        oItem.Fields["MyField"].ReadOnlyField = true;


Certain objects implement the IDisposable interface, and you must avoid retaining these objects in memory after they are no longer needed. For information about good coding practices, see Disposing Objects.

See also


SPField class

SPField members

Microsoft.SharePoint namespace