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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 175001 to 176000 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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