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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 210001 to 211000 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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