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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 196001 to 197000 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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