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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 199001 to 200000 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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