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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 164001 to 165000 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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