AMO to extract dimension usage information

Question

Hi,
I am trying to get the details of the key on the fact that join to a dimension using the dimension usage NOT the dsv. I've seen the printer friendly dimension usage produce the answer so I am assuming I can get it.  Every time I drill down a measure group I always end up getting the attribute key for the dimension.
I would have thought that this would get me to the tableID and columnID in the xmla in the cube:
Code Block_ocube.MeasureGroups[0].Dimensions[0].CubeDimension.Attributes[0].Attribute.KeyColumns[0].Source
as the xmla looks like:
Code Block
<MeasureGroups>
<MeasureGroup dwd:design-time-name="785ef530-8ab0-449e-b909-19561eb17a7e">
...<Dimensions>...
<Dimension xsi:type="RegularMeasureGroupDimension" dwd:design-time-name="e941d609-3a0e-4dd3-af38-99fd8d31c7ca">
<CubeDimensionID>Small Date</< FONT>CubeDimensionID>
<Attributes>
<Attribute dwd:design-time-name="ce664bae-a9a3-4f77-b2f2-04f0c18e2960">
<AttributeID>DATE_KEY</< FONT>AttributeID>
<KeyColumns>
<KeyColumn dwd:design-time-name="1978bf6b-13c8-4085-9125-ab368cd0d71a">
<DataType>Integer</< FONT>DataType>
<DataSize>-1</< FONT>DataSize>
<Source xsi:type="ColumnBinding" dwd:design-time-name="3f763005-6a4f-4462-9f83-20a7f4a1c4e5">
<TableID>IIP_MART_DAILY_SALES_FACT_V</< FONT>TableID>
<ColumnID>TPNM_PROPOSED_START_DATE_KEY</< FONT>ColumnID>
</< FONT>Source>
Any help would be gratefully received, as i have been going around in cycles for hours now
Many thanks
Matt

Answer 1

Found the answer, thanks to the guys who produced BIDS Helper
http://www.codeplex.com/bidshelper
I looked at the code for the PrinterFriendlyDimensionUsage class and I found out how to get what I wanted.  So many thanks to all those invovled in that.
Code Block
foreach (MeasureGroup mg in _ocube.MeasureGroups)
foreach (MeasureGroupDimension mgdim in mg.Dimensions)
if (mgdim is ManyToManyMeasureGroupDimension || mgdim is DataMiningMeasureGroupDimension || mgdim is DegenerateMeasureGroupDimension)
//call attribute usage stuff
else if (mgdim is ReferenceMeasureGroupDimension)
//call attribute usage stuff
else if (mgdim is RegularMeasureGroupDimension)
RegularMeasureGroupDimension regMDdim = (RegularMeasureGroupDimension)mgdim;
foreach (MeasureGroupAttribute mga in regMDdim.Attributes)
//gets the dimension info
foreach (DataItem di in mga.Attribute.KeyColumns)
string tableid = ((ColumnBinding)di.Source).TableID;
string columnid = ((ColumnBinding)di.Source).ColumnID;
//gets the fact table info
foreach (DataItem di3 in mga.KeyColumns)
string tableid = ((ColumnBinding)di3.Source).TableID;
string columnid = ((ColumnBinding)di3.Source).ColumnID;
//call attribute usage stuff
Matt