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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...201 202 203 204 205 206 207 208 209 210 ... Item 201001 to 202000 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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