ASPxQueryBuilder.StaticInitialize() Method

Explicitly starts the Query Builder initialization.

Namespace: DevExpress.XtraReports.Web

Assembly: DevExpress.XtraReports.v18.2.Web.WebForms.dll

Declaration

C#

public static void StaticInitialize()

VB.NET

Public Shared Sub StaticInitialize

Remarks

The ASPxQueryBuilder is automatically initialized when rendering on your application’s Web page, but in specific cases, you need to trigger its initialization explicitly (for instance, when an AppPool is recycled).

The StaticInitialize method does the following:

• Calls the static ASPxQueryBuilder constructor;
• Registers HttpHandlers required for the Query Builder;
• Initializes all services for processing requests to the corresponding handler.

Use the StaticInitialize method at the application startup in the Global.asax file.

Note

To make the Query Builder’s handlers work correctly, you should call this method after specifying the session state and registering additional services.

C#

protected void Application_Start(Object sender, EventArgs e) {
    // ...  
   DevExpress.XtraReports.Web.QueryBuilder.Native.QueryBuilderBootstrapper.SessionState = 
        System.Web.SessionState.SessionStateBehavior.Required;
    // ...  
    DevExpress.XtraReports.Web.ASPxQueryBuilder.StaticInitialize();
}

VB.NET

Protected Sub Application_Start(ByVal sender As Object, ByVal e As EventArgs)
    ' ...  
    DevExpress.XtraReports.Web.QueryBuilder.Native.QueryBuilderBootstrapper.SessionState = 
        System.Web.SessionState.SessionStateBehavior.Required
    ' ...  
    DevExpress.XtraReports.Web.ASPxQueryBuilder.StaticInitialize
End Sub

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the StaticInitialize() method.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

Reporting_how-to-use-the-aspnet-mvc-query-builder-to-provide-data-to-the-gridview-extension-t624853/CS/MvcQueryBuilder/Global.asax.cs#L25

    DevExpress.Web.ASPxWebControl.CallbackError += Application_Error;
    DevExpress.Web.Mvc.MVCxQueryBuilder.StaticInitialize();
}

VB.NET

Reporting_how-to-use-the-aspnet-mvc-query-builder-to-provide-data-to-the-gridview-extension-t624853/VB/MvcQueryBuilder/Global.asax.vb#L27

    AddHandler DevExpress.Web.ASPxWebControl.CallbackError, AddressOf Application_Error
    DevExpress.Web.Mvc.MVCxQueryBuilder.StaticInitialize()
End Sub