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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 168001 to 169000 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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