Passing user control object to another object as dependency property

My xaml is as follows:

<m:Map CredentialsProvider="XXX" x:Name="mainMap"/>
<BingEditableMapControl:BingMapEditingControl BingMap="mainMap" />

For BingEditableMapControl, the property BingMap is a dependency property takes the control of Map. 开发者_C百科How do i pass the mainMap to the BingMap property through xaml?

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Try it like this:-

<m:Map CredentialsProvider="XXX" x:Name="mainMap"/>
<BingEditableMapControl:BingMapEditingControl BingMap="{Binding ElementName=mainMap}" />

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Make mainMap a static resource and bind the BingMap property like this

BingMap={StaticResource mainMap}