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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 161001 to 162000 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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