Using the selected items in Sqldatasource

How can I use the results开发者_如何学编程 of the select method in SqlDatasource like assign the returned id to a variable ?

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By default the SqlDataSource returns a System.Data.DataView object from its select method:

System.Web.UI.WebControls.SqlDataSource source = new System.Web.UI.WebControls.SqlDataSource("Connection String", "Select Query");
System.Data.DataView view = (System.Data.DataView)source.Select(System.Web.UI.DataSourceSelectArguments.Empty);

The System.Data.DataView object is a collection of System.Data.DataRowView so if you wanted to get the value of "pk" column for the first object you do this:

int itemIndex = 0;
String ColumnName = "pk";
int ID = view[itemIndex][ColumnName];