Message in Spanish (Español)
DataSourceID de '<var>X</var>' debe ser el identificador de un control del tipo IHierarchicalDataSource. '<var>Y</var>' no es un IHierarchicalDataSource.
Unlocalized message
The DataSourceID of '<var>X</var>' must be the ID of a control of type IHierarchicalDataSource. '<var>Y</var>' is not an IHierarchicalDataSource.
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