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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 215001 to 216000 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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