I define a field of a vector layer as ValueMap. I define the values manually, then the feature attribute dialog appears with the combobox. But the first row in my combobox is empty. I use QGis2.8. In QGis2.0 the first row was not empty.

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Why is the first row of my ComboBox empty? If I click "ok" immediately without using the combobox I get a strange character () in the attribut tablel.



It's because you have to define which attribute of your combo box you want to use when editing. the "strange" () characters equals to an empty box with no attribute defined.

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