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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 162001 to 163000 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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