kb(common): check the assembly version

Author: Jekata

knowledge-base/common-assembly-version.md

@@ -0,0 +1,41 @@
+---
+title: How to find out which is the used version of Telerik.Web.UI in the web application
+description: See how to check the version of a .NET assembly in two different ways
+type: how-to
+page_title: How to check which is the version of the Telerik assembly
+slug: common-assembly-version
+position: 
+tags: 
+ticketid: 1587488
+res_type: kb
+---
+
+## Environment
+<table>
+	<tbody>
+		<tr>
+			<td>Product</td>
+			<td>Progress® Telerik® UI for ASP.NET AJAX</td>
+		</tr>
+	</tbody>
+</table>
+
+
+## Description
+The solution demonstrates two different approaches to check the version of the Telerik UI for ASP.NET AJAX controls used in an ASP.NET WebForms application or website.
+
+## Solution
+You can use two techniques to see which is the used version by your app:
+
+* Open the bin folder of the app in Windows Explorer -> right-click on the assemblies -> Properties -> Details -> Product version:
+
+![File Version](images/common_telerik_assembly_version.png)
+
+* Load the page with the Telerik controls in the browser, go to View Source (Ctrl+U) -> Search for the following HTML comment tag string:
+
+ `<!-- 20` and it will reveal the used version:
+
+![Product Version](images/common-view-source-telerik-version.png)
+
+
+