Does this help:
[C#]
private void DemonstrateDataView(){
// Create one DataTable with one column.
DataTable myTable = new DataTable("myTable");
DataColumn colItem = new
DataColumn("item",Type.GetType("System.String"));
myTable.Columns.Add(colItem);
// Add five items.
DataRow NewRow;
for(int i = 0; i <5; i++){
NewRow = myTable.NewRow();
NewRow["item"] = "Item " + i;
myTable.Rows.Add(NewRow);
}
// Change the values in the table.
myTable.Rows[0]["item"]="cat";
myTable.Rows[1]["item"] = "dog";
myTable.AcceptChanges();
// Create two DataView objects with the same table.
DataView firstView = new DataView(myTable);
DataView secondView = new DataView(myTable);
// Print current table values.
PrintTableOrView(myTable,"Current Values in Table");
// Set first DataView to show only modified versions of original
rows.
firstView.RowStateFilter=DataViewRowState.ModifiedOriginal ;
// Print values.
PrintTableOrView(firstView,"First DataView: ModifiedOriginal");
// Add one New row to the second view.
DataRowView myDataRowView;
myDataRowView=secondView.AddNew();
myDataRowView["item"] = "fish";
// Set second DataView to show modified versions of current rows, or
New rows.
secondView.RowStateFilter=DataViewRowState.ModifiedCurrent |
DataViewRowState.Added;
// Print modified and Added rows.
PrintTableOrView(secondView, "Second DataView: ModifiedCurrent |
Added");
}
private void PrintTableOrView(DataTable t, string label){
// This function prints values in the table or DataView.
Console.WriteLine("\n" + label);
for(int i = 0; i<t.Rows.Count;i++){
Console.WriteLine("\t" + t.Rows
["item"]);
}
Console.WriteLine();
}
private void PrintTableOrView(DataView dv, string label){
// This overload prints values in the table or DataView.
Console.WriteLine("\n" + label);
for(int i = 0; i<dv.Count;i++){
Console.WriteLine("\t" + dv["item"]);
}
Console.WriteLine();
}
http://msdn.microsoft.com/library/d...ef/html/frlrfsystemdatadataviewclasstopic.asp