Network Management

The Controls collection cannot be modified because the control contains code blocks

The node details page is not loading for some users and the following error appears: The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>).

First published date

10/12/2018 7:50 PM

Last published date

2/26/2025 3:57 AM

Overview

The node details page is  loading with an error:
 

The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>)
 

Product section

User Device Tracker

Cause

On UDT 3.4 This may occur when the Port Details resource is included in the Node Details.

Resolution

A)

  1. Go to Settings > Manage Views.
  2. Select Node Details - Summary.
  3. Click Edit.
  4. Select Port Details.
  5. Click Delete.
  6. Click Save.

B)

  1. Navigate to C:\Program Files (x86)\SolarWinds\Orion\UDT\
  2. Verify that Solarwinds.UDT.BusinessLayer.dll (UDT 3.2.2 Hotfix-2 ) and check if it is being blocked by the System similar to  A blocked file prevents SolarWinds from working properly .

C)

  1. Go to C:\Program Files (x86)\Solarwinds\Orion\UDT
  2. Remove any old dlls, some are quite obvious 2015,2016 dates in them
  3. Back them up if need be, once they are removed restart and try page again
D) 
Install UDT 3.4 Hotfix 1(This is for UDT 3.4 Issue)
Installation Instructions
  1. Use an administrator account to log in to the server that hosts your SolarWinds Orion installation.
  2. Navigate to Customer Page Portal and download the installer:
    • To install the hotfix on an Orion server with Internet access, download User Device Tracker (UDT) for Online Installation (your license tier). The Orion Installer downloads and installs the hotfix for you.
    • To install the hotfix on an offline environment, download User Device Tracker (UDT) for Offline Installation.
  3. Run the installation file, and follow the instructions in the installation wizard.

Here's the article for the UDT 3.4 Hotfix 1 Release Notes. LINK

E)
1. RDP to the Orion server, open the Database Manager to view the SolarWinds database
2. Right-click the database or the 'UDT_SETTING' table, select New Query, paste the SQL query below into the New Query tab, and click execute query.
 

-- Scripts are not supported under any SolarWinds support program or service.
-- Scripts are provided AS IS without warranty of any kind. SolarWinds further
-- disclaims all warranties including, without limitation, any implied warranties
-- of merchantability or of fitness for a particular purpose. The risk arising
-- out of the use or performance of the scripts and documentation stays with you.
-- In no event shall SolarWinds or anyone else involved in the creation,
-- production, or delivery of the scripts be liable for any damages whatsoever
-- (including, without limitation, damages for loss of business profits, business
-- interruption, loss of business information, or other pecuniary loss) arising
-- out of the use of or inability to use the scripts or documentation.

UPDATE UDT_SETTING SET SettingValue=0 WHERE SettingName='UDT.UI.ShowAlsoIndirectConnections'


Node details summary page is now accessible.