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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 194001 to 195000 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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