Bug 153523 OK button in parameter dialog is enabled without default value in combo-box
Description: OK button in parameter dialog is enabled without default value in combo-box Steps to reproduce: 1. New a report parameter, combo-box. 2. Click New button, input abc as value, click OK 3. Set abc as default value and close Edit Parameter dialog. 4. New a data source and dataset 5. Edit the parameter, remove abc value and import values from dataset Expected result: OK button is disabled for there is no default value. Actual result: OK button is enabled.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/CascadingParametersDialog.java
}
			okEnable &= ( count != 0 );
		}
		getOkButton( ).setEnabled( okEnable );
	}
	private boolean matchDataType( ScalarParameterHandle handle,
			ResultSetColumnHandle columnHandle )
	{
		String type = handle.getDataType( );
		if ( handle == selectedParameter )
		{
			type = getSelectedDataType( );
		}
		if ( DesignChoiceConstants.PARAM_TYPE_STRING.equals( type )
				|| DesignChoiceConstants.COLUMN_DATA_TYPE_ANY.equals( columnHandle.getDataType( ) ) )
		{
			return true;
		}
		else if ( DesignChoiceConstants.PARAM_TYPE_BOOLEAN.equals( type ) )
		{
			return DesignChoiceConstants.COLUMN_DATA_TYPE_ANY.equals( columnHandle.getDataType( ) );
		}
		else if ( DesignChoiceConstants.PARAM_TYPE_DATETIME.equals( type ) )
		{
			return DesignChoiceConstants.COLUMN_DATA_TYPE_DATETIME.equals( columnHandle.getDataType( ) );
		}
		else if ( DesignChoiceConstants.PARAM_TYPE_DECIMAL.equals( type ) )
		{
			return DesignChoiceConstants.COLUMN_DATA_TYPE_DECIMAL.equals( columnHandle.getDataType( ) );
		}