Setting DataSource property on RadComboBox at runtime

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ComboBox General Discussions
Michael
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Michael asked on 06 Oct 2021, 05:04 PM

 

I am trying to set the datasource property of a radcombobox in the selectedindexchanged eventhandler of another radcombobox.

I am getting this error. 

 

 

How do I accomplish this?

Michael
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commented on 07 Oct 2021, 05:37 PM

I am able to set the DataSource property in PageLoad event. Because the values in this dropdown depend on the users selection in the country dropdown, I need to set the state dropdown datasource property in the country dropdown's SelectedIndexChanged event handler. It is not allowing me to do that.

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Vessy
Telerik team
answered on 08 Oct 2021, 06:59 AM

Hello Michael,

You can see how to implement cascading functionalities between several RadcomboBox controls here:

 

Please, give this approach a try and let me know if you need further assistance on this matter after that.

Regards,
Vessy
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Vessy
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