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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 214001 to 215000 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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