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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...291 292 293 294 295 296 297 298 299 300 Item 292001 to 293000 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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