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transformers Element for webParts (ASP.NET Settings Schema)

  • Articolo

Defines a collection of TransformerInfo objects.

<transformers>
    <add.../>
    <clear />
    <remove.../>
</transformers>

Attributes and Elements

The following sections describe attributes, child elements, and parent elements.

Attributes

None.

Child Elements

Element Description

add

Optional String element.

Adds a Transformers object to the collection.

clear

Optional String element.

Removes all transformers objects from the collection.

remove

Optional String element.

Removes the specified transformers object from the collection.

Parent Elements

Element Description

configuration

The required root element in every configuration file used by the common language runtime and .NET Framework applications.

system.web

Specifies the root element for the ASP.NET configuration settings in a configuration file. Contains configuration elements that configure ASP.NET Web applications and control how the applications behave.

webParts

Allows you to specify a Web Parts personalization provider, set personalization authorizations, and add custom classes that extend the Transformer class for use by Web Parts connections.

Remarks

The transformers specified in configuration are the transformers used when determining compatibility for a potential dynamic connection. Also, the only transformers that can be used on a page, statically or dynamically, are the transformers specified in configuration.

Default Configuration

The following default transformers element is configured in the root Web.config file in the .NET Framework version 2.0.

<transformers>
  <add name="RowToFieldTransformer" 
    type="System.Web.UI.WebControls.WebParts.RowToFieldTransformer" />
  <add name="RowToParametersTransformer" 
    type="System.Web.UI.WebControls.WebParts.RowToParametersTransformer" />
</transformers>

Example

The following example configures transformers for an ASP.NET application.

<webParts>
  <transformers>
    <clear />
      <remove name="RowToKeysTransformer" />
      <add name="RowToFieldTransformer"
        type="System.Web.UI.WebControls.WebParts.RowToFieldTransformer" />
      <add name="RowToFilterTransformer"
        type="System.Web.UI.WebControls.WebParts.RowToFilterTransformer" />
      <add name="RowToParametersTransformer"
        type="System.Web.UI.WebControls.WebParts.RowToParametersTransformer" />
  </transformers>
</webParts>

Element Information

Configuration Section Handler

System.Web.Configuration.WebPartsSection

Configuration Member

System.Web.Configuration.WebPartsSection.Transformers

Configurable Locations

Machine.config

Root-level Web.config

Application-level Web.config

Virtual or physical directory level Web.config

Requirements

IIS 6.0

.NET Framework 2.0

Visual Studio 2005

See Also

Tasks

How to: Configure Specific Directories Using Location Settings
How to: Lock ASP.NET Configuration Settings

Reference

system.web Element (ASP.NET Settings Schema)
configuration Element (General Settings Schema)
webParts Element (ASP.NET Settings Schema)
add Element for transformers for webParts (ASP.NET Settings Schema)
clear Element for transformers for webParts (ASP.NET Settings Schema)
remove Element for transformers for webParts (ASP.NET Settings Schema)
System.Configuration
System.Web.Configuration

Concepts

ASP.NET Configuration File Hierarchy and Inheritance
Securing ASP.NET Configuration
ASP.NET Configuration Scenarios

Other Resources

General Configuration Settings (ASP.NET)
ASP.NET Configuration Settings
Configuring ASP.NET Applications
ASP.NET Configuration Files
ASP.NET Configuration API