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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 246001 to 247000 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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