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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 164001 to 165000 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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