1)Typed DataSets use explicit names and DataTypes for their members.
northwindDataSet.Products.ProductNameColumn.Caption = "pnames";
2)They have .xsd file (Xml Schema definition) file associated with them and do error checking regarding their schema at design time using the .xsd definitions.
1)UnTyped DataSets use table and column collections for their members
2)They do not do error checking at the design time as they are filled at run time when the code executes.
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