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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 212001 to 213000 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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