Update needsource snippet with a shorter version

Telerik UI for ASP.NET AJAX/Grid/GridNeedSourceDummyData.snippet

@@ -15,43 +15,27 @@
       <Code Language="csharp">
         <![CDATA[ protected void RadGrid1_NeedDataSource(object sender, GridNeedDataSourceEventArgs e)
 {
-        (sender as RadGrid).DataSource = GetGridSource(); $end$
+    (sender as RadGrid).DataSource = GetGridSource();
 }
+
 private DataTable GetGridSource()
 {
     DataTable dataTable = new DataTable();
 
-        DataColumn column = new DataColumn();
-        column.DataType = Type.GetType("System.Int32");
-        column.ColumnName = "OrderID";
-        dataTable.Columns.Add(column);
+    dataTable.Columns.Add(new DataColumn("OrderID", typeof(int)));
+    dataTable.Columns.Add(new DataColumn("OrderDate", typeof(DateTime)));
+    dataTable.Columns.Add(new DataColumn("Freight", typeof(decimal)));
+    dataTable.Columns.Add(new DataColumn("ShipName", typeof(string)));
+    dataTable.Columns.Add(new DataColumn("ShipCountry", typeof(string)));
 
-        column = new DataColumn();
-        column.DataType = Type.GetType("System.DateTime");
-        column.ColumnName = "OrderDate";
-        dataTable.Columns.Add(column);
+    dataTable.PrimaryKey = new DataColumn[] { dataTable.Columns["OrderID"] };
 
-        column = new DataColumn();
-        column.DataType = Type.GetType("System.Decimal");
-        column.ColumnName = "Freight";
-        dataTable.Columns.Add(column);
-
-        column = new DataColumn();
-        column.DataType = Type.GetType("System.String");
-        column.ColumnName = "ShipName";
-        dataTable.Columns.Add(column);
-
-        column = new DataColumn();
-        column.DataType = Type.GetType("System.String");
-        column.ColumnName = "ShipCountry";
-        dataTable.Columns.Add(column);
-
-        DataColumn[] PrimaryKeyColumns = new DataColumn[1];
-        PrimaryKeyColumns[0] = dataTable.Columns["OrderID"];
-        dataTable.PrimaryKey = PrimaryKeyColumns;
-
-        for (int i = 0; i <= 80; i++)
+    for (int i = 0; i < 70; i++)
     {
+        // or use the following one-liner with the following arguments
+        // OrderID, OrderDate, Freight, ShipName, ShipCountry
+        //dataTable.Rows.Add(i + 1, DateTime.Now, (i + 1) + (i + 1) * 0.1 + (i + 1) * 0.01, "Name " + (i + 1), "Country " + (i + 1));
+
         DataRow row = dataTable.NewRow();
         row["OrderID"] = i + 1;
         row["OrderDate"] = DateTime.Now;