DD Class13

Review Data Diagram for final

• are they normal?
• can the design acomplish your goals?
• are they over engineered?

Relational Controls

http://iam.colum.edu/dd/classsource/class13/cheeseGridViewMasterDetails.aspx http://iam.colum.edu/dd/classsource/class13/cheeseGridViewMasterDetails2.aspx

todo

replace regionID, milkID in details view with dropdowns and real names

DataView RowFilter and DataTable Select

data in a DataTable can be filtered by using DataTable.Select. DataTable.Select return an array of matching DataRows

You can also filter data by using a DataView. DataViews are similar to view in SQL they can be filtered by calling

DataRow.RowFilter.

In both situation the string expression in the Rowfilter or passed in to the Select funtion should be a WHERE clause.

http://iam.colum.edu/dd/classsource/class13/DataView.aspx

Homework

Work on final project