NPNarayanasamy Panneer Selvam Syncfusion Team September 5, 2019 07:17 PM
Greetings from Syncfusion support.
We have validated your query. Also checked your code and it seems you have manually binding data for DropDownList through change events. Since we are not aware of your web api method, kindly ensure whether the proper dataSource value that matches “e.value” is returned from Controller. We suspect that in change event, thearguments may got differ for Internet Explorer. Also, we suggest to try with “*cascadeTo*” property so that DropDownLists will be cascaded based on the matching value in dataSources without change event. While passing query for matching records during cascading, you can pass the query through “cascade” event which will be triggered during cascade. Please refer to the below given UG for example on multi-level cascading.