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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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

<%@ 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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