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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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