Propiedad CursorType de ADO
❮ Referencia completa de objetos de conjunto de registros
La propiedad CursorType establece o devuelve el tipo de cursor que se utilizará al abrir un objeto Recordset. Esta propiedad puede tomar un valor CursorTypeEnum . El valor predeterminado es adOpenForwardOnly.
Nota: si la propiedad CursorLocation se establece en adUseClient, la única configuración válida para la propiedad CursorType es adOpenStatic.
Nota: No se producirá ningún error si se establece un valor no compatible; en su lugar, el proveedor simplemente cambiará a un Tipo de cursor compatible.
Sintaxis
objRecordset.CursorType
Ejemplo
<%
set conn=Server.CreateObject("ADODB.Connection")
conn.Provider="Microsoft.Jet.OLEDB.4.0"
conn.Open(Server.Mappath("northwind.mdb"))
set rs = Server.CreateObject("ADODB.recordset")
sql="SELECT * FROM Customers"
rs.CursorLocation = adUseClient
rs.CursorType = adOpenStatic
rs.LockType = adLockBatchOptimistic
rs.Open sql, conn
%>
Valores de CursorTypeEnum
| Constant | Value | Description |
|---|---|---|
| adOpenUnspecified | -1 | Does not specify the type of cursor. |
| adOpenForwardOnly | 0 | Default. Uses a forward-only cursor. Identical to a static cursor, except that you can only scroll forward through records. This improves performance when you need to make only one pass through a Recordset. |
| adOpenKeyset | 1 | Uses a keyset cursor. Like a dynamic cursor, except that you can't see records that other users add, although records that other users delete are inaccessible from your Recordset. Data changes by other users are still visible. |
| adOpenDynamic | 2 | Uses a dynamic cursor. Additions, changes, and deletions by other users are visible, and all types of movement through the Recordset are allowed, except for bookmarks, if the provider doesn't support them. |
| adOpenStatic | 3 | Uses a static cursor. A static copy of a set of records that you can use to find data or generate reports. Additions, changes, or deletions by other users are not visible. |
❮ Referencia completa de objetos de conjunto de registros