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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 166001 to 167000 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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