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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...231 232 233 234 235 236 237 238 239 240 ... Item 238001 to 239000 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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