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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 196001 to 197000 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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