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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 167001 to 168000 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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