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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 163001 to 164000 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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