How can i fix it. When i write event change then error .
I still comment this one
void onSelectType(object values)
{
@* var DocNo = obj is IEnumerable<object> ? string.Join(", ", (IEnumerable<object>)obj) : obj; *@
}
error CS1660: Cannot convert lambda expression to type 'bool' because it is not a delegate type
When i remove change event program can run nomally.