＜html＞
＜script language="VB" runat="server"＞
Sub Page_Load(Sender As Object, E As EventArgs)
Dim RandomGenerator As Random
RandomGenerator = New Random(DateTime.Now.Millisecond)
Dim RandomNum As Integer
RandomNum = RandomGenerator.Next(0, 3)
Select RandomNum
Case 0:
Name.Text = "Scott"
Case 1:
Name.Text = "Fred"
Case 2:
Name.Text = "Adam"
End Select
AnchorLink.NavigateUrl = "controls_navigationtarget_vb.aspx?name=" & System.Web.HttpUtility.UrlEncode(Name.Text)
End Sub
＜/script＞
＜body＞
＜h3＞＜font face="Verdana"＞Performing Page Navigation (Scenario 1)＜/font＞＜/h3＞
＜p＞
This sample demonstrates how to generate a HTML Anchor tag that will cause the client to
navigate to a new page when he/she clicks it within the browser.
＜p＞
＜hr＞
＜p＞
＜asp:hyperlink id="AnchorLink" font-size=24 runat=server＞
Hi ＜asp:label id="Name" runat=server/＞ please click this link!
＜/asp:hyperlink＞
＜/body＞
＜/html＞
执行页面导航（第二种情况）
并非所有的页面导航都由客户端的超级链接发起。ASP.NET页面开发者调用Response.Redirect(url)方法也可以发起客户端页面的重定向或导航。这种情况典型发生在真正进行导航之前，服务器端需要验证客户端的输入信息的时候。
下面的例子演示了如何使用Response.Redirect方法把参数传递到另外一个目标页面。它还演示了如何在目标页面上简单地获取这些参数。
＜html＞
＜script language="VB" runat="server"＞
Sub EnterBtn_Click(Sender As Object, E As EventArgs)
If Not (Name.Text = "")
Response.Redirect("Controls_NavigationTarget_vb.aspx?name=" & System.Web.HttpUtility.UrlEncode(Name.Text))
Else
Message.Text = "Hey! Please enter your name in the textbox!"
End If
End Sub
＜/script＞
＜body＞
＜h3＞＜font face="Verdana"＞Performing Page Navigation (Scenario 2)＜/font＞＜/h3＞
＜p＞
This sample demonstrates how to navigate to a new page from within a <asp:button> click event, passing a <asp:textbox> value as a querystring argument (validating first that the a legal textbox value has been specified).
＜p＞
＜hr＞
＜form action="controls6.aspx" runat=server＞
＜font face="Verdana"＞Please enter your name:
＜asp:textbox id="Name" runat=server/＞
＜asp:button text="Enter" Onclick="EnterBtn_Click" runat=server/＞
＜p＞
＜asp:label id="Message" forecolor="red" font-bold="true" runat=server/＞
＜/font＞
＜/form＞
＜/body＞
＜/html＞
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