Answer Posted / rajesh kumar chekuri

DataTable: Represents one table in-memory
DataView:: Represents a customized view of a DataTable for
sorting, filtering, searching, editing, and navigation.
See the following example u can get Better idea...

// Create a new DataTable.
System.Data.DataTable table = new
DataTable("Customers");
// Declare variables for DataColumn and DataRow objects.
DataColumn column;
DataRow row;

// Create new DataColumn, set DataType,
// ColumnName and add to DataTable.
column = new DataColumn();
column.DataType = System.Type.GetType("System.String");
column.ColumnName = "ID";
column.ReadOnly = true;
column.Unique = true;
// Add the Column to the DataColumnCollection.
table.Columns.Add(column);


// Create second column.
// Add the column to the table.
table.Columns.Add("FirstName",
System.Type.GetType("System.String"));

// Add the column to the table.
table.Columns.Add("LastName",
System.Type.GetType("System.String"));

// Make the ID column the primary key column.
DataColumn[] PrimaryKeyColumns = new DataColumn[1];
PrimaryKeyColumns[0] = table.Columns["id"];
table.PrimaryKey = PrimaryKeyColumns;


// add new datarow by adding the values
table.Rows.Add("C101", "Rajesh", "Kumar");
table.Rows.Add("C102", "Fareed", "sk");
table.Rows.Add("C103", "Rajesh", "Raji");

//Sort and display
DataView view = new DataView(table);
view.Sort = "LastName ASC, FirstName ASC";

// assing ur gridview to dataview
GridView1.DataSource = view;
GridView1.DataBind();

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