ListView initialized with no data and virtualization enabled errors when dataSource is set later

[Grant]

Please see a repro in this CodeSandbox:  https://codesandbox.io/s/18yy171lyj 

[Christopher Issac Sunder K]

Hi Grant, 

Greetings from Syncfusion support!! 

We have analyzed your sample. If you want to initialize the list view with empty data, then you need to bind empty data source to list view. 

We have modified the sample for binding the empty data source when click the ‘Initialize with no data’ button. 

Sample Link: https://codesandbox.io/s/8nw0xq4q00 

Please check the above the sample and let us know if we misunderstood your query. 

Thanks, 

Christo 

[Grant]

There's no fix for this issue in the updated code - you're just hiding the issue. I've reverted the sandbox code (https://codesandbox.io/s/wnm3yzj6m5). 

Below is a better description of how to see the issue:

• Click the "Open in New Window" button for the running code
  
  
• Display the console for the new window (F12)
  
  
• Click the 'Initialize with data' button
  Note that 2 console logs are displayed ✔
  
  
• Click the 'Initialize with no data' 
  Note that 1 console log is displayed, followed by a JS error (Uncaught TypeError: Cannot read property 'parentNode' of undefined)❌
  
  
• Un-check the 'Virtualized' checkbox
  
  
• Click the 'Initialize with no data' button
  Note that 2 console logs are displayed ✔

[Christopher Issac Sunder K]

Hi Grant,  

 

We regret for the inconvenience.  

 

We have analyzed your online sample and your given information. We have confirmed that this is a bug in ListView. We have logged a defect report for the same. The issue will be fixed and included in our upcoming patch release which is expected to be rolled in the next week. You can track the status of the feature through the below Feedback portal link, 

https://www.syncfusion.com/feedback/5821 

 

We appreciate your patience until then. 

 

Thanks, 

Christo 

[Christopher Issac Sunder K]

Hi Grant, 

Thanks for being patient. 

We have fixed the reported issue in enabling the virtualization with empty data source using onPropertyChange. The fix is included in the version v17.1.42 and you can now access it without getting any console error. We suggest you upgrade to the latest version to resolve the issue.    

  

Script: http://cdn.syncfusion.com/ej2/17.1.42/dist/ej2.min.js       

Theme: https://cdn.syncfusion.com/ej2/17.1.42/material.css       

  

Let us know if you need any further assistance on this.    

Thanks, 

Christo