Dropdown List Cascading : preloading of the dropdowList son

[TOKO FIDELE]

hello, I'm currently using the dropdowList waterfall. My problem lies in preloading the dropdowList thread. I want to pre-fill the country and the city when the page loads according to the values ​​of my database. for example, Senegal as a country and Dakar as a city.

Thanks in advance and regards,

[Prince Oliver]

Hello Toko, 

Thank you for contacting us. 

To pre-fill the country and the city when the page loads, we suggest you use the value property in the control and assign the pre-fill data in that property to select it. We have attached an example for demonstrating your scenario. Please find the sample at the following link 

Sample link: https://stackblitz.com/edit/react-ts-8u3sag  

For further reference, please refer the following links 

API reference for value: https://ej2.syncfusion.com/react/documentation/api/drop-down-list#value  

Configure cascading: https://ej2.syncfusion.com/react/documentation/drop-down-list/how-to/cascading/  

Preselect select in multi cascading: https://ej2.syncfusion.com/react/documentation/drop-down-list/how-to/multiple-cascading/  

Online demo link: https://ej2.syncfusion.com/react/demos/#/material/drop-down-list/cascading  

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

Regards, 

Prince