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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 168001 to 169000 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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