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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 162001 to 163000 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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