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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 192001 to 193000 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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