Update README.md

Author: AlexanderKovalenko

README.md

@@ -1,25 +1,23 @@
-# Product/Platform - Task
+# Dashboard for ASP.NET Core - How to change database connection in the dashboard designer using UI
 
-This is the repository template for creating new examples. Describe the solved task here.
+The main purpose of this example is to illustrate how to pass custom parameters (not [Dashboard Parameters](https://docs.devexpress.com/Dashboard/117062/web-dashboard/create-dashboards-on-the-web/data-analysis/dashboard-parameters)) to from the client side to the server to implement conditional logic for Dashboards. In this specific example we switch the database connection.
 
-Put a screenshot that illustrates the result here.
+To complete this task we add two buttons in the [Designer Toolbar](https://docs.devexpress.com/Dashboard/403426/web-dashboard/ui-elements-and-customization/designer-toolbar). Once any button is clicked, we put the custom parameter to the [AjaxRemoteService.headers](https://docs.devexpress.com/Dashboard/js-DevExpress.Dashboard.AjaxRemoteService#js_devexpress_dashboard_ajaxremoteservice_headers) dictionary. After that, the [DashboardControl.reloadData](https://docs.devexpress.com/Dashboard/js-DevExpress.Dashboard.DashboardControl#js_devexpress_dashboard_dashboardcontrol_reloaddata) method call initiates a data reloding callback (See also: [Manage an In-Memory Data Cache](https://docs.devexpress.com/Dashboard/400983/web-dashboard/dashboard-backend/manage-an-in-memory-data-cache)).
 
-Then, add implementation details (steps, code snippets, and other technical information in a free form), or add a link to an existing document with implementation details. 
+On the server, the [IHttpContextAccessor](https://docs.microsoft.com/en-us/aspnet/core/fundamentals/http-context?view=aspnetcore-3.0) with dependency injection is used to access the passed working mode in code (`HttpContext.Request.Headers["database"]`) in the [DashboardConfigurator.ConfigureDataConnection](https://docs.devexpress.com/Dashboard/DevExpress.DashboardWeb.DashboardConfigurator.ConfigureDataConnection) event handler. Note that we use the [CustomStringConnectionParameters](https://docs.devexpress.com/CoreLibraries/DevExpress.DataAccess.ConnectionParameters.CustomStringConnectionParameters) class instance to initialize and apply a custom connection string in a convenient manner
 
 ## Files to Review
 
-- link.cs
-- link.js
-- ...
+* [Program.cs](./CS/Program.cs)
+* [Index.cshtml](./CS/Pages/Index.cshtml)
 
 ## Documentation
 
-- link
-- link
-- ...
+* [Designer Toolbar](https://docs.devexpress.com/Dashboard/403426/web-dashboard/ui-elements-and-customization/designer-toolbar)
+* [Manage an In-Memory Data Cache](https://docs.devexpress.com/Dashboard/400983/web-dashboard/dashboard-backend/manage-an-in-memory-data-cache)).
 
 ## More Examples
 
-- link
-- link
-- ...
+* [Dashboard for ASP.NET Core - How to Limit Data Displayed in Designer Mode](https://github.com/DevExpress-Examples/asp-net-core-dashboard-limit-designer-data)
+* [Dashboard for ASP.NET Core - How to Use Parameters to Update a Specific Dashboard Item Without Refreshing the Entire Dashboard](https://github.com/DevExpress-Examples/asp-net-core-dashboard-refresh-item-on-parameter-change)
+* [Dashboard for ASP.NET Core - How to implement authentication](https://github.com/DevExpress-Examples/aspnet-core-dashboard-jwt-authentication)