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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...201 202 203 204 205 206 207 208 209 210 ... Item 206001 to 207000 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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