خواندن و نوشتن یک کووکی با مسیر

نحوه ی استفاده از کوکی ها در ASP.NET با VB.NET :
&lt;%@ Page Language="VB" %>



&lt;script language="VB" runat="server">

	Const COOKIE_NAME  As String = "test-cookie-name" 

	Const COOKIE_VALUE As String = "test-cookie-value" 



	' Declare our cookie object

	Dim objCookieObject As HttpCookie

	

	Sub btnSetCookie_OnClick&#40;Sender As Object, E As EventArgs&#41;

		' Create a cookie object - I'm passing name and value,

		' but you can also pass in a name and set the value later.

		' ie. objCookieObject = New HttpCookie&#40;COOKIE_NAME&#41;

		objCookieObject = New HttpCookie&#40;COOKIE_NAME, COOKIE_VALUE&#41;



		' We already set these above!

		'objCookieObject.Name   = COOKIE_NAME

		'objCookieObject.Value  = COOKIE_VALUE



		' Additional cookie properties&#58;

		objCookieObject.Expires = New DateTime&#40;2010, 11, 12&#41;



		' Normally you can leave these alone.

		' The defaults will work fine for most uses.

		'objCookieObject.Domain  = "www.domain.com"

		'objCookieObject.Path    = "/path/"

		'objCookieObject.Secure  = True

		

	    Response.AppendCookie&#40;objCookieObject&#41;

	End Sub



	Sub btnRemoveCookie_OnClick&#40;Sender As Object, E As EventArgs&#41;

		objCookieObject = New HttpCookie&#40;COOKIE_NAME&#41;

		

		' Expire it on the day I was born just so we're sure it's a date in the past.

		objCookieObject.Expires = New DateTime&#40;1974, 11, 12&#41;

		

		Response.AppendCookie&#40;objCookieObject&#41;

	End Sub



	Sub btnGetCookie_OnClick&#40;Sender As Object, E As EventArgs&#41;

		objCookieObject = Request.Cookies&#40;COOKIE_NAME&#41;



		' In Beta 1 this worked fine... not with Beta 2.

		'If Not&#40;objCookieObject = Nothing&#41; Then

		

		If Not&#40;objCookieObject Is Nothing&#41; Then

			lblCookieDetails.Text        = objCookieObject.Name



			lblCookieDetailsName.Text    = objCookieObject.Name

			lblCookieDetailsValue.Text   = objCookieObject.Value

			

			' For some reason I'm having trouble with this now...

			' The setting seems to work, but I can't read it back.

			' Anyone have any ideas? Email me -> john@asp101.com

			lblCookieDetailsExpires.Text = objCookieObject.Expires.ToString

			

			lblCookieDetailsDomain.Text  = objCookieObject.Domain

			lblCookieDetailsPath.Text    = objCookieObject.Path

			lblCookieDetailsSecure.Text  = objCookieObject.Secure.ToString

			lblCookieDetailsHasKeys.Text = objCookieObject.HasKeys.ToString

		Else

			lblCookieDetails.Text        = "Cookie Not Set!"



			lblCookieDetailsName.Text    = ""

			lblCookieDetailsValue.Text   = ""

			lblCookieDetailsExpires.Text = ""

			lblCookieDetailsDomain.Text  = ""

			lblCookieDetailsPath.Text    = ""

			lblCookieDetailsSecure.Text  = ""

			lblCookieDetailsHasKeys.Text = ""

		End If



		' I'm ignoring collections.  They're outside the realm of this basic sample.

		' FYI&#58; Additional properties related to cookie collections&#58; Values, Item

	End Sub

&lt;/script>



&lt;html>

&lt;body>



&lt;h4>The cookie name we're using for this sample is&#58; &lt;em>&lt;%= COOKIE_NAME %>&lt;/em>&lt;/h4>



&lt;form action="cookie.aspx" method="post" runat="server">

	&lt;asp&#58;Button type="submit" id="btnSetCookie" text="Set Cookie" OnClick="btnSetCookie_OnClick" runat="server" />

	&lt;asp&#58;Button type="submit" id="btnRemoveCookie" text="Remove Cookie" OnClick="btnRemoveCookie_OnClick" runat="server" />



	&lt;p>

	To see the cookie's current status you'll need to click below.  This is because the response which adds or deletes the cookie happens after the request is already done.  As such, those changes aren't available from the request collection until the next request.

	&lt;/p>



	&lt;asp&#58;Button type="submit" id="btnGetCookie" text="Get Cookie Details" OnClick="btnGetCookie_OnClick" runat="server" />

&lt;/form>



&lt;p>

&lt;strong>Details of&#58;&lt;/strong> &lt;asp&#58;label id="lblCookieDetails" runat="server" />

&lt;/p>



&lt;table border="1">

	&lt;thead>

		&lt;tr>

			&lt;th>Property&lt;/th>

			&lt;th>Value&lt;/th>

		&lt;/tr>

	&lt;/thead>

	&lt;tbody>

		&lt;tr>

			&lt;td>Name&lt;/td>

			&lt;td>&lt;asp&#58;label id="lblCookieDetailsName" runat="server" />&lt;/td>

		&lt;/tr>

		&lt;tr>

			&lt;td>Value&lt;/td>

			&lt;td>&lt;asp&#58;label id="lblCookieDetailsValue" runat="server" />&lt;/td>

		&lt;/tr>

		&lt;tr>

			&lt;td>Expires&lt;/td>

			&lt;td>&lt;asp&#58;label id="lblCookieDetailsExpires" runat="server" />&lt;/td>

		&lt;/tr>

		&lt;tr>

			&lt;td>Domain&lt;/td>

			&lt;td>&lt;asp&#58;label id="lblCookieDetailsDomain" runat="server" />&lt;/td>

		&lt;/tr>

		&lt;tr>

			&lt;td>Path&lt;/td>

			&lt;td>&lt;asp&#58;label id="lblCookieDetailsPath" runat="server" />&lt;/td>

		&lt;/tr>

		&lt;tr>

			&lt;td>Secure&lt;/td>

			&lt;td>&lt;asp&#58;label id="lblCookieDetailsSecure" runat="server" />&lt;/td>

		&lt;/tr>

		&lt;tr>

			&lt;td>Has Keys&lt;/td>

			&lt;td>&lt;asp&#58;label id="lblCookieDetailsHasKeys" runat="server" />&lt;/td>

		&lt;/tr>

	&lt;/tbody>

&lt;/table>



&lt;/body>

&lt;/html>