Web.config parameters

The system settings include appSettings keys and other settings, such as connection string placed in appropriate sections of the web.config file.

Key

Description

Sample Value

CMSDirectoryProviderAssembly

Name of the assembly that should be used for operations in the file system. You can choose from the following options:

•	CMS.DirectoryProviderDotNet - this is a managed code library that uses System.IO methods for disk operations. It is useful for environment that allows only managed code. This is the default value.

•	CMS.DirectoryProviderWin32 - this is an unmanaged code library that uses Win32 API for disk operations. It is useful for environment that requires Win32 API calls.

CMSProgrammingLanguage

Indicates the programming language used in transformations and in custom code added to web parts.

The default value is C#.

CMSSearchProviderAssembly

Name of the assembly that is used for full-text search. The default assembly is CMS.SearchProviderSQL.

CMSSendErrorsToEmail

E-mail address to which all exceptions are sent.

CMSSendErrorsFromEmail

E-mail address from which exceptions are sent.

CMSTrialKey

Contains a temporary trial key. You can remove this value after installation.

CMSUseAutomaticScheduler

Indicates if automatic scheduling should be used. The default value is false.

Automatic scheduler periodically requests the cmspages/scheduler.aspx page which ensures that scheduled tasks are processed automatically.

If it's turned off (false - by default), the tasks are processed at the end of page request. If it's true, the cmspages/scheduler.aspx page is requested periodically.

CMSUseCustomHandlers

Indicates if custom handlers should be executed to process the system events.

The default value is false.

CMSWebFarmServerName

Code name of the web farm server. This value is used for native web farm synchronization support.

CMSWYSIWYGFixXHTML

Indicates if the WYSIWYG editor should automatically try to fix XHTML incompatibilities in the code.

Supported values are "true" and "false". The default value is true.

CMSUseIFrameForHTMLEditorToolbar

Indicates if the WYSIWYG editor shared toolbar should be displayed in an iframe to avoid issues with design in the editing mode. The default value is false.

CMSUseVirtualPathProvider

Indicates if the virtual path provider should be used (true by default). Before you switch off the virtual path provider, please read chapter Pre-compilation (Publish function).

CMSDefaultSpellCheckerCulture

Specifies the default culture of the built-in spell-checker. This culture is used when the dictionary for the currently selected content culture is not found.

CMSShowLogonCultureSelector

Indicates if the logon page should display the CMS Desk should display a dropdownlist with available user interface languages.

CMSUsePermanentRedirect

Indicates if Response.Redirect (302, default mode) should be replaced with static redirect (301).

CMSShowWebPartCodeTab

Indicates if the Code tab is displayed in the web part properties. This parameter is used for backward compatibility.

CMSShowWebPartBindingTab

Indicates if the Binding tab is displayed in the web part properties. This parameter is used for backward compatibility.

CMSShoppingCartExpirationPeriod

Number of days after which the shopping cart content is deleted from the database. It's used for deleting unused shopping carts of anonymous users that are stored in the database with ID stored in the browser cookie.

CMSUseCurrentSKUData

Indicates if the E-commerce module should use the price from the existing order items or from the current SKU data when re-calculating the order.

You will use the following settings only in special cases when you encounter problems with deadlocks when updating a document:

Key	Description	Sample Value
CMSTransactionIsolationLevel	Isolation level for explicit transactions.	<add key="CMSTransactionIsolationLevel" value="ReadCommitted" />
CMSDefaultIsolationLevel	Isolation level for all queries, even without transactions. It's used only if the value is not ReadCommitted. The settings below modify the behavior for ReadUncommitted.	<add key="CMSDefaultIsolationLevel" value="ReadUncommitted" />
CMSUseDefaultIsolationLevelOnlyWithOpenTransactions	If true, the default isolation level is used only when some transaction is already running.	<add key="CMSUseDefaultIsolationLevelOnlyWithOpenTransactions" value="true" />
CMSAllowSimultaneousTransactions	If false, there can be only one transaction running at the same time.	<add key="CMSAllowSimultaneousTransactions" value="true" />
CMSMaxTransactionWaitTimeout	Indicates how many seconds a transaction should wait for completion of another running transaction if simultaneous transactions are not allowed.	<add key="CMSMaxTransactionWaitTimeout" value="1" />

The database used by Kentico CMS engine is specified by the connection string CMSConnectionString in the /configuration/connectionStrings section. Here's an example of such connection string: