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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 169001 to 170000 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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