That is kindof what I figured would happen and why I requested a sample as sometimes when you start to create a sample you can see where the problem actually is.  And if not, then we have something that we can trace and try and get to the bottom of things.  Let me know if you do not make any progress on this.  Thanks.

Trent... Hi...

The problem did not appear in a test project. I will more make detailed analysis.

Thank you!

Rogério Mauri

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Well, I am really unsure of what you are dealing with here, but I am guessing that you are using multi-columns on this combo, which could render differently than a combo without multi-columns.  but if am going down the wrong path here, you will need to attach a sample reproducing the behavior.

Hi...

When the enabled property of one combobox is modified between true and false it is modified for one textbox.

Combobox properties:
- DropDownStyle: DropDownList
- AutoCompleteMode: Append
- AutoCompleteSource: ListItems
- FormattingEnabled: True
- PopulationType: BusinessObject
- PopulateOnFormLoad: Manual
- TopMostDescription: "<.... a text ...>"
- TopMostValue: -1
- ValueMemberDataType: Object

After choice of an option (Operação):

Rogério Mauri

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