CookieParameter Constructor ()
Assembly: System.Web (in system.web.dll)
A CookieParameter object created with the CookieParameter constructor is initialized with default values for all its properties. The CookieName property is initialized to String.Empty. Additionally, the Name property is initialized to String.Empty, the Type property is initialized to TypeCode.Object, the Direction property is initialized to Input, and the DefaultValue property is initialized to a null reference (Nothing in Visual Basic).
The following code example demonstrates how to create a CookieParameter object using the CookieParameter constructor, set its Name, Type, and CookieName properties, and then add it to a SqlDataSource control's SelectParameters collection.
<%@Page Language="VJ#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<SCRIPT runat="server">
void Page_Load(Object sender, System.EventArgs e)
{
// These cookies might be added by a login form.
// They are added here for simplicity.
if (!get_IsPostBack()) {
get_Response().get_Cookies().Add(new HttpCookie("lname", "davolio"));
get_Response().get_Cookies().Add(new HttpCookie(
"loginname", "ndavolio"));
get_Response().get_Cookies().Add(new HttpCookie(
"lastvisit", System.DateTime.get_Now().ToString()));
// You can add a CookieParameter to the SqlDataSource control's
// SelectParameters collection programmatically.
CookieParameter cookieParam = new CookieParameter();
cookieParam.set_Name("lastname");
cookieParam.set_Type(System.TypeCode.String);
cookieParam.set_CookieName("lname");
SqlDataSource1.get_SelectParameters().Add(cookieParam);
}
}//Page_Load
</SCRIPT>
<HTML>
<BODY>
<FORM runat="server">
<asp:SqlDataSource
id="SqlDataSource1"
runat="server"
DataSourceMode="DataSet"
ConnectionString="Data Source=localhost;Integrated Security=SSPI;Initial Catalog=Northwind;"
SelectCommand="SELECT OrderID,CustomerID,OrderDate,RequiredDate,ShippedDate
FROM Orders WHERE EmployeeID = (SELECT EmployeeID FROM Employees WHERE LastName = @lastname)">
</asp:SqlDataSource>
<asp:GridView
id="GridView1"
runat="server"
AllowSorting="True"
DataSourceID="SqlDataSource1">
</asp:GridView>
</FORM>
</BODY>
</HTML>
The following code-behind module is used with the previous Web Forms page.
CookieParameter cookieParam = new CookieParameter();
cookieParam.set_Name("lastname");
cookieParam.set_Type(System.TypeCode.String);
cookieParam.set_CookieName("lname");
Windows 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.