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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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