仅显示一次警报 [英] display an alert only once
问题描述
在Page_Load中我有以下想要弹出窗口第一次出现
（仅）显示页面。我每次都得到它。这可以解决吗？
谢谢
静态已经布尔=虚假
如果不是那么那么
beenHere = True
Dim csname1 As String =" PopupScript"
Dim cstype As Type = Me.GetType（）
Dim csm As ClientScriptManager = Page.ClientScript
If（not csm.IsStartupScriptRegistered（cstype，csname1））然后
Dim cstext1 As New StringBuilder（）
cstext1.Append（" alert（''This is）
cstext1.Append（" some text。''）;"）
csm.RegisterStartupScript（cstype，csname1，cstext1.ToString，True ）
结束如果
结束如果
In Page_Load I have the following wanting the popup to appear the first time
(only) that the page is displayed. I get it each time. Can this be fixed?
thanks
Static beenHere As Boolean = False
If Not beenHere Then
beenHere = True
Dim csname1 As String = "PopupScript"
Dim cstype As Type = Me.GetType()
Dim csm As ClientScriptManager = Page.ClientScript
If (Not csm.IsStartupScriptRegistered(cstype, csname1)) Then
Dim cstext1 As New StringBuilder()
cstext1.Append("alert(''This is ")
cstext1.Append("some text.'');")
csm.RegisterStartupScript(cstype, csname1, cstext1.ToString, True)
End If
End If
推荐答案
嗨
在Page_Load上试试这个
if（Page.IsPostBack == false）
{
//把脚本放在这里只显示一次
}
希望有帮助
问候
Munna
Hi
try this
on Page_Load
if(Page.IsPostBack==false)
{
//put script here to show only once
}
hope that helps
regards
Munna
试过但是它不起作用。
我猜是因为如果我移动到另一个页面然后返回，或者如果我刷新，那么
不是PostBack。
我想我注意了一个变量，其寿命一直持续到用户
离开网站。
感谢您的帮助。
" Munna" < mu ****** @ gmail.com写信息
新闻：ec ************************ ********** @ a70g2000 hsh.googlegroups.com ...
Tried it but it doesn''t work.
I''d guess because if I move to another page and return, or if I refresh, it
is not a PostBack.
I think I heed a variable that has a lifetime that lasts until the user
leaves the site.
Thanks for trying to help.
"Munna" <mu******@gmail.comwrote in message
news:ec**********************************@a70g2000 hsh.googlegroups.com...
嗨
试试这个页面上的
if（Page.IsPostBack == false）
{
//把脚本放在这里只显示一次
}
希望有帮助
问候
Munna
Hi
try this
on Page_Load
if(Page.IsPostBack==false)
{
//put script here to show only once
}
hope that helps
regards
Munna
" AAaron123" < aa ******* @ roadrunner.com写在留言中
新闻：Oz ************** @ TK2MSFTNGP02.phx.gbl ...
"AAaron123" <aa*******@roadrunner.comwrote in message
news:Oz**************@TK2MSFTNGP02.phx.gbl...
我想我注意了一个变量，其寿命一直持续到用户
离开网站。
I think I heed a variable that has a lifetime that lasts until the user
leaves the site.
然后使用Session ...
Session [" blnFirstTime"] = true;
if（（bool）Session [" blnFirstTime"] == true）
{
//运行一次
Session [" blnFirstTime"] = false;
}
-
Mark Rae
ASP。 NET MVP
http://www.markrae.net
Then use Session...
Session["blnFirstTime"] = true;
if ((bool)Session["blnFirstTime"] == true)
{
// run once
Session["blnFirstTime"] = false;
}
--
Mark Rae
ASP.NET MVP
http://www.markrae.net
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