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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...61 62 63 64 65 66 67 68 69 70 ... Item 61001 to 62000 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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