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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 162001 to 163000 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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