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I Need Help XML Schema

Posted By:      Posted Date: October 05, 2010    Points: 0   Category :ASP.Net

I have XMl Schema and and XMl file 

and i read the both files into DataSet 

I Need reach the Primary Key 


            string colName = dsProducts.Tables[""+TableName+""].PrimaryKey[0].ColumnName;

            string colName = dsProducts.Tables[""+TableName+""].PrimaryKey[0].ColumnName;

but this code return null 
Who Can Help Me plz and very fast I need Solve very fast 

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