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The described behavior is an expected one in the current version of the RadComboBox and RadRibbonComboBox controls. Our ComboBox controls supports out of the box searching which is by default enabled. This feature can be disabled by setting the IsTextSearchEnabled
, for more details please refer this
The reason for the experienced behavior is because when the second ComboBox is getting its Text property from the first one, it:
Automatically triggers its searching feature with the new text
- Tries to find an matching item
- If there is such item it is selected
- Finally the Text of the RadComboBox is updates to match the text of the found item
I recorded a short video showing the described behavior. Note that when the IsTextSearchEnabled is set to True (its default value) the first item found by the searching functionality is automatically selected in the second ComboBox. If the IsTextSearchEnabled is set to False there is no longer any selection and the text is exactly as it is in the first ComboBox.
Hope this is helpful.