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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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