FormParameter Constructor ()
.NET Framework 2.0
Note: This constructor is new in the .NET Framework version 2.0.
Initializes a new unnamed instance of the FormParameter class.
Namespace: System.Web.UI.WebControls
Assembly: System.Web (in system.web.dll)
Assembly: System.Web (in system.web.dll)
A FormParameter object created with the FormParameter constructor is initialized with default values for all its properties. The FormField 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 null (Nothing in Visual Basic).
<%@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)
{
// You can add a FormParameter to the AccessDataSource control's
// SelectParameters collection programmatically.
accessDataSource1.get_SelectParameters().Clear();
FormParameter formParam = new FormParameter();
formParam.set_Name("lastname");
formParam.set_Type(System.TypeCode.String);
formParam.set_FormField("LastNameBox");
accessDataSource1.get_SelectParameters().Add(formParam);
}//Page_Load
</SCRIPT>
<HTML>
<BODY>
<form id="Form1" runat="server">
<asp:accessdatasource
id="accessDataSource1"
runat="server"
datasourcemode="DataSet"
datafile="Northwind.mdb"
selectcommand="SELECT OrderID,CustomerID,OrderDate,RequiredDate,ShippedDate
FROM Orders WHERE EmployeeID = (SELECT EmployeeID FROM Employees WHERE LastName = @lastname)">
</asp:accessdatasource>
<p>Enter the name "Davolio" or "King" in the text box and click the button.
<p>
<asp:textbox
id="LastNameBox"
runat="server" />
<p>
<asp:button
id="Button1"
runat="server"
text="Get Records" />
<p>
<asp:gridview
id="GridView1"
runat="server"
allowsorting="True"
datasourceid="accessDataSource1">
</asp:gridview>
</form>
</BODY>
</HTML>
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.
Community Additions
ADD
Show: