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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...201 202 203 204 205 206 207 208 209 210 ... Item 209001 to 210000 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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