How can I set the Selected value on a DevExpress LookupEdit?
I previously asked a similar question, but the code was much more complicated. This question involves a similar problem, but the code is drastically simplified. Still, even as simple as this example is, I can NOT get the dropdown to pre-select the correct value.
I have a dropdown that is populated w/ values correctly. Also, when I change the dropdown to any of the values, and then save my form, the database record is updated w/ the correct value. That much is working, but selecting the correct value on form load will not work.
I put these lines in my save method, just to see what I'm working with.
var test1 = _myLookupEdit.EditValue; //evaluates to 2
var test2 = _myLookupEdit.Properties.KeyValue; //evaluates to 2
However, when I set either of these during form load, nothing happens; the dropdown has a blank entry selected (and the rest of the values are seen when you expand the dropdown). I've tried each of these methods:
_myLookupEdit.EditValue = 2;
_myLookupEdit.Properties.KeyValue = 2;
Edit - I posted a comment below under platon's answer, but I'll post it here as well. I eventually used a stored procedure instead to populate this dropdown, instead of an Enum. From that point on, the dropdown loaded w/ the correct selected value.
Answer
You need to set the editor's EditValue property to a value according to the type of the editor's Properties.ValueMember field type. I mean, if this is a string field, the EditValue should be set to "2", not 2 and so on. This should help. If not, please try to call the editor's Properties.ForceInitialize() method after you've set the editor's DataSource property.