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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 126001 to 127000 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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