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Virtualization

ID	Contact Title	Contact Name	Country	Rating


1	Sales Representative	Matti Karttunen	Austria	1 2 3 4 5
2	Sales Associate	Georg Pipps	Argentina	1 2 3 4 5
3	Owner	Paul Henriot	Bulgaria	1 2 3 4 5
4	Sales Manager	Pascale Cartrain	Bulgaria	1 2 3 4 5
5	Owner	Matti Karttunen	Austria	1 2 3 4 5
6	Owner	Georg Pipps	Bulgaria	1 2 3 4 5
7	Marketing Manager	Matti Karttunen	USA	1 2 3 4 5
8	Sales Agent	Patricio Simpson	Austria	1 2 3 4 5
9	Accountant	Hanna Moos	Brazil	1 2 3 4 5
10	Marketing Assistant	Paul Henriot	France	1 2 3 4 5
11	Sales Representative	Patricio Simpson	Brazil	1 2 3 4 5
12	Owner	Paul Henriot	France	1 2 3 4 5
13	Marketing Assistant	Paul Henriot	Argentina	1 2 3 4 5
14	Marketing Assistant	Georg Pipps	France	1 2 3 4 5
15	Sales Consultant	Antonio Moreno	USA	1 2 3 4 5
16	Sales Manager	Patricio Simpson	Spain	1 2 3 4 5
17	Owner	Jaime Yorres	Brazil	1 2 3 4 5
18	Sales Consultant	Patricio Simpson	Italy	1 2 3 4 5
19	Sales Agent	Paul Henriot	Austria	1 2 3 4 5
20	Accounting Manager	Howard Snyder	Brazil	1 2 3 4 5
21	Marketing Manager	Patricio Simpson	Brazil	1 2 3 4 5
22	Marketing Assistant	Hanna Moos	Spain	1 2 3 4 5
23	Sales Representative	Pascale Cartrain	USA	1 2 3 4 5
24	Sales Manager	Paul Henriot	France	1 2 3 4 5
25	Owner	Hanna Moos	Germany	1 2 3 4 5
26	Marketing Assistant	Paul Henriot	England	1 2 3 4 5
27	Sales Manager	Patricio Simpson	Spain	1 2 3 4 5
28	Sales Associate	Jaime Yorres	Italy	1 2 3 4 5
29	Accountant	Jaime Yorres	USA	1 2 3 4 5
30	Sales Representative	Paul Henriot	Italy	1 2 3 4 5
31	Accountant	Antonio Moreno	Bulgaria	1 2 3 4 5
32	Sales Manager	Georg Pipps	Italy	1 2 3 4 5
33	Accountant	Elizabeth Lincoln	Italy	1 2 3 4 5
34	Sales Associate	Georg Pipps	Bulgaria	1 2 3 4 5
35	Sales Associate	Jaime Yorres	Argentina	1 2 3 4 5
36	Accounting Manager	Hanna Moos	Bulgaria	1 2 3 4 5
37	Marketing Assistant	Paul Henriot	Germany	1 2 3 4 5
38	Sales Associate	Howard Snyder	Italy	1 2 3 4 5
39	Marketing Assistant	Paul Henriot	England	1 2 3 4 5
40	Accountant	Jaime Yorres	Bulgaria	1 2 3 4 5
41	Sales Manager	Pascale Cartrain	Bulgaria	1 2 3 4 5
42	Sales Manager	Patricio Simpson	Italy	1 2 3 4 5
43	Accounting Manager	Georg Pipps	Italy	1 2 3 4 5
44	Sales Associate	Georg Pipps	Bulgaria	1 2 3 4 5
45	Accountant	Jaime Yorres	Brazil	1 2 3 4 5
46	Sales Associate	Matti Karttunen	Italy	1 2 3 4 5
47	Accountant	Paul Henriot	Austria	1 2 3 4 5
48	Owner	Paul Henriot	France	1 2 3 4 5
49	Marketing Assistant	Paul Henriot	England	1 2 3 4 5
50	Marketing Manager	Hanna Moos	USA	1 2 3 4 5
51	Sales Consultant	Howard Snyder	France	1 2 3 4 5
52	Accounting Manager	Elizabeth Lincoln	Spain	1 2 3 4 5
53	Marketing Assistant	Elizabeth Lincoln	England	1 2 3 4 5
54	Marketing Assistant	Georg Pipps	Brazil	1 2 3 4 5
55	Sales Associate	Antonio Moreno	Brazil	1 2 3 4 5
56	Sales Consultant	Hanna Moos	Bulgaria	1 2 3 4 5
57	Sales Consultant	Patricio Simpson	Argentina	1 2 3 4 5
58	Accounting Manager	Jaime Yorres	Germany	1 2 3 4 5
59	Owner	Paul Henriot	England	1 2 3 4 5
60	Sales Agent	Antonio Moreno	England	1 2 3 4 5
61	Marketing Assistant	Antonio Moreno	Bulgaria	1 2 3 4 5
62	Marketing Assistant	Jaime Yorres	Bulgaria	1 2 3 4 5
63	Accounting Manager	Pascale Cartrain	France	1 2 3 4 5
64	Marketing Manager	Pascale Cartrain	Spain	1 2 3 4 5
65	Accounting Manager	Pascale Cartrain	Germany	1 2 3 4 5
66	Sales Agent	Pascale Cartrain	England	1 2 3 4 5
67	Sales Consultant	Jaime Yorres	Brazil	1 2 3 4 5
68	Sales Agent	Paul Henriot	Germany	1 2 3 4 5
69	Accounting Manager	Antonio Moreno	Brazil	1 2 3 4 5
70	Accounting Manager	Howard Snyder	France	1 2 3 4 5
71	Sales Agent	Antonio Moreno	Argentina	1 2 3 4 5
72	Accountant	Elizabeth Lincoln	England	1 2 3 4 5
73	Owner	Hanna Moos	Spain	1 2 3 4 5
74	Accounting Manager	Georg Pipps	Germany	1 2 3 4 5
75	Owner	Howard Snyder	Germany	1 2 3 4 5
76	Sales Manager	Paul Henriot	Italy	1 2 3 4 5
77	Sales Associate	Elizabeth Lincoln	Germany	1 2 3 4 5
78	Sales Representative	Paul Henriot	France	1 2 3 4 5
79	Owner	Antonio Moreno	Spain	1 2 3 4 5
80	Sales Associate	Hanna Moos	France	1 2 3 4 5
81	Owner	Hanna Moos	Italy	1 2 3 4 5
82	Sales Associate	Howard Snyder	USA	1 2 3 4 5
83	Sales Consultant	Hanna Moos	USA	1 2 3 4 5
84	Marketing Manager	Hanna Moos	Argentina	1 2 3 4 5
85	Accounting Manager	Howard Snyder	Spain	1 2 3 4 5
86	Sales Manager	Elizabeth Lincoln	Spain	1 2 3 4 5
87	Accountant	Paul Henriot	Brazil	1 2 3 4 5
88	Owner	Antonio Moreno	Austria	1 2 3 4 5
89	Marketing Assistant	Hanna Moos	Brazil	1 2 3 4 5
90	Sales Agent	Patricio Simpson	Spain	1 2 3 4 5
91	Marketing Manager	Antonio Moreno	Austria	1 2 3 4 5
92	Sales Consultant	Antonio Moreno	Argentina	1 2 3 4 5
93	Marketing Assistant	Georg Pipps	Austria	1 2 3 4 5
94	Sales Agent	Georg Pipps	Italy	1 2 3 4 5
95	Sales Manager	Howard Snyder	Argentina	1 2 3 4 5
96	Sales Manager	Patricio Simpson	Brazil	1 2 3 4 5
97	Sales Associate	Georg Pipps	Austria	1 2 3 4 5
98	Sales Manager	Patricio Simpson	Spain	1 2 3 4 5
99	Accountant	Georg Pipps	Austria	1 2 3 4 5
100	Sales Consultant	Matti Karttunen	England	1 2 3 4 5


...211 212 213 214 215 216 217 218 219 220 ... Item 213001 to 214000 of 300000 Page: of 300 GoPage size:

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Columns
- ID
- Contact Title
- Contact Name
- Country
- Rating

About this demo
C#
VB
Download demo code files
Isolate this demo as a stand-alone application

RadGrid's virtualization feature allows you to handle hundreds of thousands of rows without negatively impacting the user experience. The control achieves this thanks to its ItemsPerView property allowing you to control the number of items loaded at a time. Users can now scroll, as well as show, hide, resize and reorder columns without any waiting time.

This demo shows how quickly Telerik's ASP.NET DataGrid can handle user interactions with 300,000 items. You can configure the component to allow scrolling through the entire data set or only through the current page by using EnableCurrentPageScrollOnly property,.

<%@ Page Language="vb" AutoEventWireup="false" CodeFile="DefaultVB.aspx.vb" Inherits="Telerik.GridExamplesVBNET.Performance.Virtualization.DefaultVB" %>

<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
<%@ Register TagPrefix="qsf" Namespace="Telerik.QuickStart" %>
<!DOCTYPE html>
<html xmlns='http://www.w3.org/1999/xhtml'>
<head runat="server">
    <title>Telerik ASP.NET Example</title>
    <link href="styles.css" rel="stylesheet" />
</head>
<body>
    <form id="form1" runat="server">
    <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
    <telerik:RadSkinManager ID="RadSkinManager1" runat="server" ShowChooser="true" />
    <telerik:RadAjaxLoadingPanel runat="server" ID="RadAjaxLoadingPanel1"></telerik:RadAjaxLoadingPanel>
    <telerik:RadAjaxPanel runat="server" ID="RadAjaxPanel" LoadingPanelID="RadAjaxLoadingPanel1" CssClass="demo-container">
        <telerik:RadGrid RenderMode="Lightweight" ID="RadGrid1" runat="server"  AutoGenerateColumns="false"
            AllowSorting="true" GroupingEnabled="false"
            EnableHeaderContextMenu="true" AllowPaging="true" PageSize="1000" OnNeedDataSource="RadGrid1_NeedDataSource">
            <MasterTableView TableLayout="Fixed">
                <Columns>
                    <telerik:GridBoundColumn UniqueName="ID" HeaderText="ID" HeaderStyle-Width="50px" DataField="ID"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactTitle" HeaderText="Contact Title" HeaderStyle-Width="150px" DataField="ContactTitle"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactName" HeaderText="Contact Name" HeaderStyle-Width="150" DataField="ContactName"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="Country" HeaderText="Country" HeaderStyle-Width="100px" DataField="Country"></telerik:GridBoundColumn>
                    <telerik:GridRatingColumn UniqueName="Rating" HeaderText="Rating" HeaderStyle-Width="100px" DataField="Rating"></telerik:GridRatingColumn>
                </Columns>
            </MasterTableView>
            <ClientSettings ReorderColumnsOnClient="true" AllowColumnsReorder="true" ColumnsReorderMethod="Reorder">
                <Virtualization EnableVirtualization="true" InitiallyCachedItemsCount="2000"
                    LoadingPanelID="RadAjaxLoadingPanel1" ItemsPerView="100"/>
                <Scrolling AllowScroll="true" UseStaticHeaders="true" ScrollHeight="500px" />
                <Resizing AllowColumnResize="true" />
            </ClientSettings>
            <PagerStyle Mode="NextPrevNumericAndAdvanced"></PagerStyle>
        </telerik:RadGrid>
    </telerik:RadAjaxPanel>
    </form>
</body>
</html>

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