Setting TDBLookupComboBox to blank in c++

Question

I am using a TDBLookupComboBox in Embarcadero C++ Builder to list some fields from a DataBase, but I need to have the option of setting the selected value "TDBLookupComboBox ->Text" to be empty. I need this because I have other components connected to the ComboBox and I will need to be able to send either the value pulled from the DataBase OR nothing.

I looked at the win32 API SendMessage function, but as TDBLookupComboBox doesn't inherit from ComboBox, I am out of luck. Does anybody have an implementation for this?

score 0 · Accepted Answer · edited May 23 '17 at 12:22

0

Here is the answer to this.

Found it elsewhere when searching for slightly different things.

I am wondering if you can only have one NullValueKey however. That seems odd.

DBLookupComboBox - How to clear the selected item?

edited May 23 '17 at 12:22

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answered Jul 18 '12 at 19:30

user912447

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Setting TDBLookupComboBox to blank in c++

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