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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 214001 to 215000 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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