This method adds a column to the list of columns (IColumn interfaces).
Syntax
IColumns.Add(Name, Description, Type, PropGuid, PropPid, Index, Retrieve, Length)
Parameters
Name
The name of the column. Sets the Name property of the resulting column to this value.
Description
A textual description of the column. Sets the Description property of the resulting column to this value.
Type
The data type of the column. Sets the Type property of the resulting column to this value.
| Type | VBScript VarType |
| BOOL | vbBoolean |
| FILETIME | vbDate |
| I4 | vbLong |
| LPSTR | vbString |
| LPWSTR | vbString |
PropGuid
The property set GUID. Sets the PropGuid property of the resulting column to this value.
PropGuid and PropPid uniquely identify a column for indexing, searching, and retrieving.
PropPid
The property ID. Sets the PropPid property of the resulting column to this value.
Index
If True, Search indexes the information in this column.
Retrieve
If True, Search retrieves the information in this column; if False, Search does not retrieve the information in this column. Sets the Retrieve property of the resulting column to this value.
Length
Length is reserved and should always be set to zero.
Remarks
Search does not validate the values of this method's parameters until you call the ISearchSchema.Save method.
You should check the Err.Number property after both the Add and the ISearchSchema.Save methods to ensure that the column was added successfully.
Example
The following example adds the HitCount column to the schema for the KMSampleCatalog1 catalog definition.
Option Explicit
On Error Resume Next
Dim objSearchAdmin, objBuildServer, objCatalogs, objCatalog, objSchema, objColumns, objColumn
Dim Name, Description, Type, PropGuid, PropPid, Index, Retrieve, Length
Set objSearchAdmin = CreateObject("Search.SearchAdmin.1")
Set objBuildServer = objSearchAdmin.BuildServer
Set objCatalogs = objBuildServer.BuildCatalogs
Set objCatalog = objCatalogs("KMSampleCatalog1")
Set objSchema = objCatalog.objSchema
Set objColumns = objSchema.objColumns
Name = " HitCount"
Description = "The number of hits (words matching query) in file"
Type = "I4"
PropGuid = "49691c90-7e17-101a-a91c-08002b2ecda9"
PropPid = "4"
Index = False
Retrieve = True
Length = 0
Set objColumn = objColumns.Add Name, Description, Type, PropGuid, PropPid,
Index, Retrieve, Length
...
'Release objects
Set objColumn = Nothing
Set objColumns = Nothing
Set objSchema = Nothing
Set objCatalog = Nothing
Set objCatalogs = Nothing
Set objBuildServer = Nothing
Set objSearchAdmin = Nothing
See Also
Clear, Count, IColumn interface, Remove