Public Function Browse3( _
   ByVal itemID As String, _
   ByVal elementType As Integer, _
   ByVal filterCriteria As String, _
   ByVal sTypeFilter As Type, _
   ByVal accessRightsFilter As OPCDA.OPCACCESSRIGHTS, _
   ByRef nodes As List(Of NodeElement) _
) As Integer

public int Browse3( 
   string itemID,
   int elementType,
   string filterCriteria,
   Type sTypeFilter,
   OPCDA.OPCACCESSRIGHTS accessRightsFilter,
   out List<NodeElement> nodes
)

Parameters

itemID

elementType

IN: branch and/or leaf filter
Bit 0 (1) - returns nodes that don't have children (items)
Bit 1 (2) - returns nodes that have children (branches)

filterCriteria

A server specific filter string. This is entirely free format and may be entered by the user via an EDIT field. Although the valid criteria are vendor specific, source code for a recommended filter function is included in an Apppendix at the end of this document. This particular filter function is commonly used by OPC interfaces and is very similar in functionality to the LIKE function in Visual Basic. A pointer to a NUL string indicates no filtering.

sTypeFilter

Data type filter specified as a .Net data type
Filter the returned list based in the available datatypes (those that would succeed if passed to AddItem). Type void indicates no filtering.

accessRightsFilter

Filter based on the AccessRights bit mask (OPC_READABLE or OPC_WRITEABLE). The bits passed in the bitmask are 'ANDed' with the bits that would be returned for this Item by AddItem, ValidateItem or EnumOPCItemAttributes. If the result is non-zero then the item is returned. A 0 value in the bitmask indicates that the AccessRights bits should be ignored during the filtering process.

nodes

OUT: List withXDASrvfound nodes.

Return Value

Target Platforms: Windows 7/8/10, Windows Server 2008/2012/2016, .NET 4.7.2

See Also