update description

Readme.md

@@ -1,24 +1,45 @@
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-*Files to look at*:
-
-* [DataProvider.cs](./CS/App_Code/DataProvider.cs) (VB: [DataProvider.vb](./VB/App_Code/DataProvider.vb))
-* [Default.aspx](./CS/Default.aspx) (VB: [Default.aspx](./VB/Default.aspx))
-* [Default.aspx.cs](./CS/Default.aspx.cs) (VB: [Default.aspx.vb](./VB/Default.aspx.vb))
-* [JavaScript.js](./CS/JavaScript.js) (VB: [JavaScript.js](./VB/JavaScript.js))
-<!-- default file list end -->
-# ASPxGridView - How to implement cascading combo boxes in Batch Edit mode by using WebMethods
+# Grid View for ASP.NET Web Forms - How to use WebMethods to implement cascading combo boxes in batch edit mode
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 **[[Run Online]](https://codecentral.devexpress.com/t356740/)**
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+This example demonstrates how to implement cascading combo box editors in batch mode and use **WebMethods** to populate the editors with data. This example combines the following approaches:
+
+* [Grid View for ASP.NET Web Forms - Cascading Combo Boxes in Batch Edit Mode](https://github.com/DevExpress-Examples/asp-net-web-forms-grid-cascading-comboboxes-in-batch-edit-mode)
+* [Combo Box for ASP.NET Web Forms - How to use the WebMethod attribute to populate a cascading editor with data](https://github.com/DevExpress-Examples/how-to-populate-a-cascading-aspxcombobox-by-using-webmethods-t356687)
+
+![Use WebMethods to implement cascading combo boxes in batch mode](WebMethodsInGrid.png)
+
+## Overview
+
+The main idea is to use [WebMethods](https://learn.microsoft.com/en-us/previous-versions/visualstudio/visual-studio-2008/byxd99hx(v=vs.90)?redirectedfrom=MSDN) to update the secondary editor's data based on the primary editor's value.
 
-<p>This example shows how to implement cascading combo boxes in <a href="https://documentation.devexpress.com/#AspNet/DevExpressWebASPxGridViewEditingSettings_Modetopic">EditingSettings</a> "Batch" mode by using <a href="https://msdn.microsoft.com/en-us/library/byxd99hx(v=vs.90).aspx">WebMethods</a>. The example is based on <a href="https://www.devexpress.com/Support/Center/p/T124512">ASPxGridView - How to implement cascading comboboxes in Batch Edit mode</a> and <a href="https://www.devexpress.com/Support/Center/p/T356687">How to populate a cascading ASPxComboBox by using WebMethods</a> examples. The main idea is to remove EditTemplate from <a href="https://documentation.devexpress.com/#AspNet/clsDevExpressWebASPxGridViewtopic">ASPxGridView</a> and replace the <a href="https://documentation.devexpress.com/#AspNet/clsDevExpressWebASPxComboBoxtopic">ASPxComboBox</a> <a href="https://documentation.devexpress.com/#AspNet/DevExpressWebASPxAutoCompleteBoxBase_Callbacktopic">Callback</a> by <a href="https://msdn.microsoft.com/en-us/library/byxd99hx(v=vs.90).aspx">WebMethods</a> to refresh the child's combo box item collection. This will improve the server's response time and reduce the server's load.<br><br><strong>See also: <br></strong><a href="https://www.devexpress.com/Support/Center/p/T124512">ASPxGridView - How to implement cascading comboboxes in Batch Edit mode</a><strong><br></strong></p>
+```js
+var lastCountryID;
+var lastCityID;
+function CountriesCombo_SelectedIndexChanged(s, e) {
+    var currentCountryID = s.GetSelectedItem().value;
+    lastCountryID = currentCountryID;
+    lastCityID = -1;
+    PageMethods.GetCities(lastCountryID, CitiesCombo_OnSuccessGetCities);
+}
+```
 
-<br/>
+To enable this functionality, add the [ScriptManager](https://docs.devexpress.com/AspNet/DevExpress.Web.ASPxScriptManager) control to the page and set its [EnablePageMethods](https://learn.microsoft.com/en-us/dotnet/api/system.web.ui.scriptmanager.enablepagemethods?redirectedfrom=MSDN&view=netframework-4.8.1#System_Web_UI_ScriptManager_EnablePageMethods) property to `true`.
+
+```aspx
+<asp:ScriptManager ID="ScriptManager1" runat="server" EnablePageMethods="true">
+</asp:ScriptManager>
+```
+
+## Files to Review
+
+* [Default.aspx](./CS/Default.aspx) (VB: [Default.aspx](./VB/Default.aspx))
+* [Default.aspx.cs](./CS/Default.aspx.cs) (VB: [Default.aspx.vb](./VB/Default.aspx.vb))
+* [JavaScript.js](./CS/JavaScript.js) (VB: [JavaScript.js](./VB/JavaScript.js))
 
+## Documentation
 
+* [Grid in Batch Edit Mode](https://docs.devexpress.com/AspNet/16443/components/grid-view/concepts/edit-data/batch-edit-mode)
+* [GridViewDataComboBoxColumn](https://docs.devexpress.com/AspNet/DevExpress.Web.GridViewDataComboBoxColumn)
+* [Script Manager](https://docs.devexpress.com/AspNet/DevExpress.Web.ASPxScriptManager)

config.json

@@ -1,4 +1,5 @@
 {
   "runOnWeb": true,
-  "autoGenerateVb": false
-}
+  "autoGenerateVb": true,
+  "useLegacyVbConverter": true
+}