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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 190001 to 191000 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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