# ADO LockType Property

Complete Recordset Object Reference

The LockType property sets or returns a LockTypeEnum value that specifies the type of locking when editing a record in a Recordset. Default is adLockReadOnly. This property is read/write on a closed Recordset and read-only on an open Recordset.

Note: Set this property before opening the Recordset.

Note: Not all providers support all lock types. If the requested LockType setting is not supported, the provider will choose another type of locking. You can use the Supports method to determine the actual locking functionality available in a Recordset object.

Note: adLockPessimistic is not supported if CursorLocation is set to adUseClient.

### Syntax

objRecordset.LockType

### Example

<%
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
rs.Close
conn.Close
%>

### LockTypeEnum Values

Constant | Value | Description
--- | --- | ---
adLockUnspecified | -1 | Unspecified type of lock. Clones inherits lock type from the original Recordset.
adLockReadOnly | 1 | Read-only records
adLockPessimistic | 2 | Pessimistic locking, record by record. The provider lock records immediately after editing
adLockOptimistic | 3 | Optimistic locking, record by record. The provider lock records only when calling update
adLockBatchOptimistic | 4 | Optimistic batch updates. Required for batch update mode

Complete Recordset Object Reference

### WEB HOSTING

UK Reseller Hosting

### WEB BUILDING

FREE Website BUILDER Free HTML5 Templates

### W3SCHOOLS EXAMS

HTML, CSS, JavaScript, PHP, jQuery, XML, and ASP Certifications

### SHARE THIS PAGE

### Color Picker

### HTML/CSS

HTML Tutorial HTML5 Tutorial CSS Tutorial CSS3 Tutorial Bootstrap Tutorial

### JavaScript

JavaScript Tutorial jQuery Tutorial jQuery Mobile Tutorial AngularJS Tutorial AJAX Tutorial JSON Tutorial

### Graphics

Canvas Tutorial SVG Tutorial Google Maps Tutorial

### Server Side

SQL Tutorial PHP Tutorial ASP Tutorial ASP.NET Tutorial VBScript Tutorial AppML Tutorial

### Web

Web Building Web Statistics Web Certification

### XML

XML Tutorial DTD Tutorial Schema Tutorial XML DOM Tutorial XPath Tutorial XSLT Tutorial XQuery Tutorial XSL-FO Tutorial RSS Tutorial WSDL Tutorial

### HTML/CSS

HTML Tag Reference HTML Event Reference HTML Color Reference CSS 1,2,3 Reference Bootstrap Reference

### JavaScript

JavaScript Reference HTML DOM Reference jQuery Reference jQuery Mobile Reference Google Maps Reference

### Server Side

PHP Reference SQL Reference ASP Reference VBScript Reference Razor Reference ASP.NET Reference

### XML

XML DOM Reference XSLT Reference XSL-FO Reference XPath Reference XQuery Reference Schema Reference RSS Reference SVG Reference

### HTML Charsets

HTML Character Sets HTML ASCII HTML ANSI HTML Windows-1252 HTML ISO-8859-1 HTML Symbols HTML UTF-8

### HTML/CSS

HTML Examples CSS Examples

### Browser Scripting

JavaScript Examples HTML DOM Examples jQuery Examples jQuery Mobile Examples AngularJS Examples AJAX Examples

### Server Scripting

PHP Examples ASP Examples VBScript Examples Razor Examples .NET Examples

### XML Languages

XML Examples DTD Examples XML DOM Examples XSL Examples XSLT Examples XPath Examples XQuery Examples Schema Examples RSS Examples SVG Examples