Hi Najir,
Thanks for your interest in Syncfusion products.
You can retrieve the values of the dropdown list in edit mode, by the following code below:
protected void DropDownList2_SelectedIndexChanged(object sender, EventArgs e)
{
DropDownList ddl = sender as DropDownList;
Record rd = GridGroupingControl1.Table.CurrentRecord;
rd.SetValue("City", ddl.SelectedItem.Value);
}
Please refer the sample in the link below which illustrates the above:
http://www.syncfusion.com/support/user/uploads/dropdown_fd5cf997.zipPlease try running the sample and let me know if this helps.
Regards,
Janagan.