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Enabling Drop Down From Clicking Control

I have added a multi column combo box and would like when the control is click for it to drop down.

For testing purpose I have added a button and I am able to add the code below which has the control active dropped down.

            multiColumnComboBox1.DroppedDown = true;
            multiColumnComboBox1.Focus();

However if I add the event to the multi combobox to handle the click event on it with same code it drops down for a second and then hides again.

Any help would be much appreaciated.

THanks



7 Replies 1 reply marked as answer
VR Vijayalakshmi Roopkumar Syncfusion Team August 17, 2020 12:14 PM UTC

Hi Heatherington 
 
Thank you for using Syncfusion Products. 
 
We have checked your query and understood that the dropdown opening programmatically in Clicked event of MultiColumnCombobox, would not appear for long time until you click somewhere in Form. However, we have tried to illustrate the reported behavior in our simple sample, but we could see that dropdown of MultiColumnCombobox does not seems to hide in few seconds. Please find the video and sample for the same from the following : 
 
 
 
Please look the sample, video and confirm us whether our replication procedure is same from your application. If not, modify our sample and provide detailed steps to replicate the exact issue. It would be helpful for us to reach you out with the accurate solution. 
 
Please let us know if you have any other concerns. 
 
Regards, 
Vijayalakshmi VR 


Marked as answer
JH Jeremy Heatherington August 17, 2020 08:55 PM UTC

Not sure what setting had deviated but yes I can confirm that this is working.

VR Vijayalakshmi Roopkumar Syncfusion Team August 18, 2020 09:28 AM UTC

Hi Jeremy 
Thank you for your update. 
We are glad that reported behavior with MultiColumnComboBox is resolved at your end using our solution. If you are facing the issue again, please provide us the exact settings of your application. It would helpful for us to investigate this case further. 
Regards, 
Vijayalakshmi VR 


JH Jeremy Heatherington August 18, 2020 08:03 PM UTC

Ok some the issue is related to a touch interface.  When you touch the control vs click the control , this is when it won't drop down.

VR Vijayalakshmi Roopkumar Syncfusion Team August 19, 2020 01:55 PM UTC

Hi Jeremy

Thank you for your update.

We have checked the reported behavior with Multicolumncombobox and we have consider it as a defect. We have logged a defect report on this and the patch for this fix is estimated to be available on 1st sep,2020. You can track the status using the following feedback link:

Feedback link : https://www.syncfusion.com/feedback/17135/null-value-should-be-added-as-dropdowns-item-on-setting-specific-property-as-true 

Regards,
Vijayalakshmi VR 


VR Vijayalakshmi Roopkumar Syncfusion Team September 1, 2020 10:46 AM UTC

Hi Jeremy, 
 
Thank you for your patience. 
 
Due to some complexity in fixing the reported issue with MultiColumComboBox, we need some more time to fix it. We will fix and we provide you the patch for this fix on 7th September 2020. 
 
Please let us know if you have any other concerns. 
 
Regards, 
Vijayalakshmi VR 


VR Vijayalakshmi Roopkumar Syncfusion Team September 7, 2020 02:27 PM UTC

Hi Jeremy,    
   
Thanks for your patience.  
  
The reported issue with MultiColumnCombobox has been fixed and please find the patch for the same from the following: 
   
Recommended approach - exe will perform automatic configuration.   
   
Please find the patch setup from below location:   
   
 
Please find the patch assemblies alone from below location:   
   
 
  
 
  
     
Assembly Version: 18.2.0.44   
   
Installation Directions:   
This patch should replace the files "Syncfusion.Shared.Base” under the following folder.   
$system drive:\ Files\Syncfusion\Essential Studio\$Version # \precompiledassemblies\$Version#\[TargetFramework]   
Eg : $system drive:\Program Files\Syncfusion\Essential Studio\18.2.0.44\precompiledassemblies\18.2.0.44\4.6   
   
To automatically run the Assembly Manager, please check the Run assembly manager checkbox option while installing the patch. If this option is unchecked, the patch will replace the assemblies in precompiled assemblies’ folder only. Then, you must manually copy and paste them to the preferred location or you must run the Syncfusion Assembly Manager application (available from the Syncfusion Dashboard, installed as a shortcut in the Application menu) to re-install assemblies.   
   
   
Disclaimer:   
Please note that we have created this patch for version 18.2.0.44 specifically to resolve the issue reported in this incident. If you have received other patches for the same version for other products, please apply all patches in the order received.  Please let us know, if you are using any other Syncfusion version, we will provide patch in your version.   
   
Regards,   
Vijayalakshmi VR 
 


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