Skip to main content
BuyLog In
ASP.NET Web Forms Controls
Search in…
Docs > Common Concepts > Web.config Modifications > Web.Config Options
A newer version of this page is available. .
All docs
V20.2
ASP.NET Web Forms Controls
Prerequisites
What's Installed
Get Started
Upgrade to a New Version
Common Concepts
Web.config Modifications
ASPxHttpHandlerModule
ASPxUploadProgressHttpHandler
Web.Config Options
Accessibility Compliant
Availability of Themes Assembly
Callback Compression
Callback State Encryption
Check References To External Scripts
Custom Theme Assemblies
Document Type Mode
Embed Third-Party Libraries
IE Compatibility Version
Page HTML Compression
Redirection on a Callback Error
Resource Compression
Resource Merging
Right to Left Support
Style Sheet Theme Name
Theme Base Color
Theme Font Settings
Theme Name
configSource Attribute
Supported Document Types
Cookies Support
Client-Side Functionality
Handle Callback Exceptions
Icon Collection
Appearance Customization - Theming
CSS Image Sprites
HTML Encoding
Performance Optimization
Accessibility Support
Right to Left Support
Localization
SharePoint Support
Mobile Support
Office Document Management
Cloud Storage Account Management
Web Farm and Web Garden Support
Components
Redistribution and Deployment
Troubleshooting
Get More Help
.NET Framework API Reference
Client API Reference
Download CHM

Web.Config Options

  • 2 minutes to read

A DevExpress section is automatically created within the Web.Config file when any DevExpress web control is added to the Design area in Visual Studio. This section lists all available default DevExpress options that control various features.

The default registration of this section in Web.Config is as follows. 

<configuration>
  <configSections>
    <sectionGroup name="devExpress">
      <section name="themes" type="DevExpress.Web.ThemesConfigurationSection, DevExpress.Web.v20.2, Version=20.2.13.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" requirePermission="false" />
      <section name="compression" type="DevExpress.Web.CompressionConfigurationSection, DevExpress.Web.v20.2, Version=20.2.13.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" requirePermission="false" />
      <section name="settings" type="DevExpress.Web.SettingsConfigurationSection, DevExpress.Web.v20.2, Version=20.2.13.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" requirePermission="false" />
      <section name="errors" type="DevExpress.Web.ErrorsConfigurationSection, DevExpress.Web.v20.2, Version=20.2.13.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" requirePermission="false" />
      <section name="resources" type="DevExpress.Web.ResourcesConfigurationSection, DevExpress.Web.v20.2, Version=20.2.13.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" requirePermission="false" />
    </sectionGroup>
  </configSections>
  ...
  <devExpress>
    <themes enableThemesAssembly="true" styleSheetTheme="" theme="Metropolis" customThemeAssemblies="" baseColor="Green" font="30px 'Callibri'"  />
    <compression enableHtmlCompression="false" enableCallbackCompression="true" enableResourceCompression="true" enableResourceMerging="true" />
    <settings doctypeMode="Html5" rightToLeft="false" ieCompatibilityVersion="edge" />
    <errors callbackErrorRedirectUrl="" />
    <resources>
      <add type="ThirdParty" />
      <add type="DevExtreme" />
    </resources>
  </devExpress>
</configuration>

The following DevExpress options are available within a web project’s Web.Config file.

Note

If IIS compression is configured on the server, disable DevExpress Web.config options related to compression (Page Html Compression, Callback Compression, Resource Compression and Resource Merging options) to avoid behavior issues.