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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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