Bug 177439 Need an easy way to determine default value for a dynamic parameter
Currently, I have to bring up the data set editor, preview the results in the data set and make a mental note of the value to use for a report parameter that depends on a data set. It would be nice to have a drop down on the default value field, such as <Select value> which when selected queries the data set and presents me with a list to select from.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/ParameterDialog.java
}
		if ( v1 instanceof BigDecimal && v2 instanceof BigDecimal )
		{
			return ( (BigDecimal) v1 ).compareTo( (BigDecimal) v2 ) == 0;
		}
		if ( v1 instanceof Integer && v2 instanceof Integer )
		{
			return ( (Integer) v1 ).compareTo( (Integer) v2 ) == 0;
		}
		return v1.equals( v2 );
	}
	private Object getValue( String value ) throws BirtException
	{
		if ( DesignChoiceConstants.PARAM_TYPE_BOOLEAN.equals( getSelectedDataType( ) ) )
		{
			return DataTypeUtil.toBoolean( value );
		}
		else if ( DesignChoiceConstants.PARAM_TYPE_DECIMAL.equals( getSelectedDataType( ) ) )
		{
			return DataTypeUtil.toBigDecimal( value );
		}
		else if ( DesignChoiceConstants.PARAM_TYPE_DATETIME.equals( getSelectedDataType( ) ) )
		{
			return DataTypeUtil.toDate( value, ULocale.US );
		}
		else if ( DesignChoiceConstants.PARAM_TYPE_FLOAT.equals( getSelectedDataType( ) ) )
		{
			return DataTypeUtil.toDouble( value );
		}
		else if ( DesignChoiceConstants.PARAM_TYPE_INTEGER.equals( getSelectedDataType( ) ) )