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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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

<%@ 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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