Web.config

<?xml version="1.0" ?><!--
  For more information on how to configure your ASP.NET application, please visit
  http://go.microsoft.com/fwlink/?LinkId=169433
  -->
<configuration>
  <configSections>
    <sectionGroup name="devExpress">
      <section name="themes" type="DevExpress.Web.ASPxClasses.ThemesConfigurationSection, DevExpress.Web.v12.2, Version=12.2.15.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" requirePermission="false" />
      <section name="compression" type="DevExpress.Web.ASPxClasses.CompressionConfigurationSection, DevExpress.Web.v12.2, Version=12.2.15.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" requirePermission="false" />
      <section name="settings" type="DevExpress.Web.ASPxClasses.SettingsConfigurationSection, DevExpress.Web.v12.2, Version=12.2.15.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" requirePermission="false" />
      <section name="errors" type="DevExpress.Web.ASPxClasses.ErrorsConfigurationSection, DevExpress.Web.v12.2, Version=12.2.15.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" requirePermission="false" />
    </sectionGroup>
  </configSections>
  <system.web>
    <compilation debug="true" targetFramework="4.5">
      <assemblies>
        <add assembly="DevExpress.Web.v12.2, Version=12.2.15.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" />
      </assemblies>
    </compilation>
    <httpModules>
      <add type="DevExpress.Web.ASPxClasses.ASPxHttpHandlerModule, DevExpress.Web.v12.2, Version=12.2.15.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" name="ASPxHttpHandlerModule" />
    </httpModules>
    <globalization culture="" uiCulture="" />
    <httpRuntime maxRequestLength="4096" requestValidationMode="2.0" executionTimeout="110" />
    <pages validateRequest="false" clientIDMode="AutoID">
      <controls>
        <add assembly="DxButtonLink" namespace="DXX" tagPrefix="dxx" />
      </controls>
    </pages>
  </system.web>
  <system.webServer>
    <modules runAllManagedModulesForAllRequests="true">
      <add type="DevExpress.Web.ASPxClasses.ASPxHttpHandlerModule, DevExpress.Web.v12.2, Version=12.2.15.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" name="ASPxHttpHandlerModule" />
    </modules>
    <validation validateIntegratedModeConfiguration="false" />
    <security>
      <requestFiltering>
        <requestLimits maxAllowedContentLength="30000000" />
      </requestFiltering>
    </security>
  </system.webServer>
  <devExpress>
    <themes enableThemesAssembly="true" styleSheetTheme="" theme="DevEx" customThemeAssemblies="" />
    <compression enableHtmlCompression="false" enableCallbackCompression="true" enableResourceCompression="true" enableResourceMerging="true" />
    <settings rightToLeft="false" />
    <errors callbackErrorRedirectUrl="" />
  </devExpress>
</configuration>