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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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