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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 165001 to 166000 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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