1) development tools VS 2010/VS 2008
2) Browser IE 6 SP2, operating system
3) The page file is as follows. Each access will keep the memory increasing by 1-3 m
<% @ Page Language = "C #" AutoEventWireup = "true" CodeFile = "Default3.aspx. cs" Inherits = "Default3" %>
<% @ Register
Assembly = "AjaxControlToolkit"
Namespace = "AjaxControlToolkit"
TagPrefix = "ajaxToolkit" %>
<! DOCTYPE html PUBLIC "-// W3C // dtd xhtml 1.0 Transitional // EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<Html xmlns = "http://www.w3.org/1999/xhtml">
<Head runat = "server">
<Title> No title page </title>
</Head>
<Body>
<Form id = "form1" runat = "server">
<Div>
Only scriptmanager
<Asp: RequiredFieldValidator ID = "RequiredFieldValidator1" runat = "server"
ControlToValidate = "TextBox1" ErrorMessage = "please fill in the express order number! "Display =" Dynamic ">
</Asp: RequiredFieldValidator>
<Ajaxtoolkit: validatorcalloutextender ID = "ValidatorCalloutExtender1" runat = "server"
TargetControlID = "RequiredFieldValidator1">
</Ajaxtoolkit: validatorcalloutexkit>
<Asp: ScriptManager ID = "ScriptManager1" runat = "server">
</Asp: ScriptManager>
<Asp: TextBox ID = "TextBox1" runat = "server" TextMode = "MultiLine"> SAS </asp: TextBox>
<Asp: Button ID = "Button1" runat = "server" Text = "Button"/>
<Asp: CheckBoxList ID = "CheckBoxList1" runat = "server" Width = "221px">
<Asp: ListItem Value = "1"> 11 </asp: ListItem>
<Asp: ListItem Value = "2"> 22 </asp: ListItem>
<Asp: ListItem Value = "3"> 33 </asp: ListItem>
</Asp: CheckBoxList>
<Asp: DropDownList ID = "DropDownList1" runat = "server">
<Asp: ListItem Value = "1"> 11 </asp: ListItem>
<Asp: ListItem Value = "2"> 22 </asp: ListItem>
<Asp: ListItem Value = "3"> 333 </asp: ListItem>
</Asp: DropDownList>
<Asp: CheckBox ID = "CheckBox1" runat = "server"/>
<Asp: LinkButton ID = "LinkButton1" runat = "server"> LinkButton </asp: LinkButton>
<C0: DataGridNavigator ID = "DataGridNavigator1" runat = "server"
ExcelName = "HELLO" GridID = "GridView1" ShowPageNumber = "True"/>
<Asp: ListBox ID = "ListBox1" runat = "server">
<Asp: ListItem> 12 </asp: ListItem>
<Asp: ListItem Value = "31"> 1212 </asp: ListItem>
</Asp: ListBox>
<Asp: Label ID = "Label1" runat = "server" Text = "SSS"> </asp: Label>
</Div>
<Asp: GridView ID = "GridView1" runat = "server" AllowPaging = "True" ShowFooter = "True"
PageSize = "200" AllowSorting = "True">
<PagerSettings Mode = "NumericFirstLast" NextPageText = "Large"
PageButtonCount = "11" Position = "TopAndBottom"/>
</Asp: GridView>
<Asp: FileUpload ID = "FileUpload1" runat = "server"/>
<Asp: RadioButtonList ID = "RadioButtonList1" runat = "server">
<Asp: ListItem> </asp: ListItem>
<Asp: ListItem Value = "1"> 11111 </asp: ListItem>
<Asp: ListItem Value = "1"> 21221 </asp: ListItem>
<Asp: ListItem> 11 </asp: ListItem>
</Asp: RadioButtonList>
</Form>
</Body>
</Html>