Helper.LookupDouble Method (WorkflowContext, Guid, Int32, String)
Retrieves the double value from a field for a specified SharePoint Foundation list item when the list GUID is known.
Namespace: Microsoft.SharePoint.WorkflowActions
Assembly: Microsoft.SharePoint.WorkflowActions (in Microsoft.SharePoint.WorkflowActions.dll)
Syntax
'Declaration
Public Shared Function LookupDouble ( _
context As WorkflowContext, _
listId As Guid, _
listItem As Integer, _
fieldName As String _
) As Double
'Usage
Dim context As WorkflowContext
Dim listId As Guid
Dim listItem As Integer
Dim fieldName As String
Dim returnValue As Double
returnValue = Helper.LookupDouble(context, _
listId, listItem, fieldName)
public static double LookupDouble(
WorkflowContext context,
Guid listId,
int listItem,
string fieldName
)
Parameters
context
Type: Microsoft.SharePoint.WorkflowActions.WorkflowContextWorkflowContext object that contains properties that are associated with the active workflow instance.
listId
Type: System.GuidA string that represents the GUID of the SharePoint Foundation list identifier (ID). May also be the display name of the list.
listItem
Type: System.Int32An integer that represents the SharePoint Foundation list item in a specified list.
fieldName
Type: System.StringA string that represents the name of the field in the list from which you want to retrieve a double value.
Return Value
Type: System.Double
A double value from the specified field.
Remarks
The LookupDouble method reads the value of the specified field and stores it as an object. Then it modifies or casts the value of the object, depending on the SPFieldType of that field.