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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 160001 to 161000 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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