Vb.net two dropdown one function

Protected Sub ddlManagers_SelectedIndexChanged(sender As Object, e As EventArgs) Handles ddlManagersTop.SelectedIndexChanged, ddlManagersBottom.SelectedIndexChanged

dosomething(ddlManagersTop.SelectedItem.Text)

 End Sub

I have one function for two dropdown selected index changed events,
Now above code workd only if the selection in Top dropdown changes but not working for the botton drop down.
How can I make it work for both the dropdowns/
Angela4evaAsked:
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käµfm³d 👽Commented:
Don't refer to ddlManagersTop directly within this handler. The first parameter to any event handler is the actual object (in this case control) that raised the event. Use that:

e.g.

Protected Sub ddlManagers_SelectedIndexChanged(sender As Object, e As EventArgs) Handles ddlManagersTop.SelectedIndexChanged, ddlManagersBottom.SelectedIndexChanged

  Dim ddl As DropDownList = DirectCast(sender, DropDownList)  ' Cast the "sender" to a DropDownList
  
  dosomething(ddl.SelectedItem.Text)

End Sub

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ChloesDadCommented:
Do both dropdowns set the dropdownstyle to dropdownList. If the user can type free text into the box then sometimes the index does not change and hence the event does not trigger.
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käµfm³d 👽Commented:
I'm guessing the above should be ComboBox rather than DropDownList--it's been so long since I've done WinForms. The concept is the same; change the class accordingly.   = )
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ktaczalaCommented:
add
Dim ddl As <your control type> = DirectCast(sender, <your control type> )
dosomething(ddl.selecteditem.text)
<your control type> is whatever control you want/need. i.e. button, combobox, etc.
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