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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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