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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 195001 to 196000 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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