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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 188001 to 189000 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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