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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 166001 to 167000 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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