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A bug in ComboBox?

Hi,
I have a ComboBox which data binding for the SelectedValue is set to a
integer column of a data view. There are some null value in this column. When
the binding column value changed in the following order:
not null --> null --> null
the selection in the ComboBox is:
correct item selected (correct) --> first item selected
(incorrect) --> nothing selected (correct)

I have set the DropDownStyle property of the ComboBox to DropDown and
DropDownList but none of them works. Is it a bug in the ComboBox?

Thanks

norma
Nov 16 '05 #1
1 1818
Hi,

As i understand you bind the DataView (of DataTable) to ComboBox.
Did you compare "selectedValue" to "null" or to "DBNull.Value" ?

Marcin
Hi,
I have a ComboBox which data binding for the SelectedValue is set to a
integer column of a data view. There are some null value in this column. When
the binding column value changed in the following order:
not null --> null --> null
the selection in the ComboBox is:
correct item selected (correct) --> first item selected
(incorrect) --> nothing selected (correct)

I have set the DropDownStyle property of the ComboBox to DropDown and
DropDownList but none of them works. Is it a bug in the ComboBox?

Thanks

norma

Nov 16 '05 #2

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