Is there a way to launch a javascript command from within VB code? For
instance, to issue a window.open(some url) if a certain condition is met. I
know you can add the javacript to a control event at runtime, but i need to
just launch it, not wait for the user to click something.
Thanks
16  2151 
Just bind your javascript to the appropriate client side event (such as the
the onload attribute of the body tag). It will be always performed client
side anyway.
Patrice
--
"Brian Henry" <br**********@newsgroups.nospam> a écrit dans le message de
news:%2******************@TK2MSFTNGP10.phx.gbl... Is there a way to launch a javascript command from within VB code? For
instance, to issue a window.open(some url) if a certain condition is met.
I know you can add the javacript to a control event at runtime, but i need
to just launch it, not wait for the user to click something.
Thanks
No. "VB Code" is server-side. JavaScript is client-side. And never the twain
shall meet.
--
HTH,
Kevin Spencer
..Net Developer
Microsoft MVP
Big things are made up
of lots of little things.
"Brian Henry" <br**********@newsgroups.nospam> wrote in message
news:#W**************@TK2MSFTNGP10.phx.gbl... Is there a way to launch a javascript command from within VB code? For
instance, to issue a window.open(some url) if a certain condition is met.
I know you can add the javacript to a control event at runtime, but i need
to just launch it, not wait for the user to click something.
Thanks
"Brian Henry" <br**********@newsgroups.nospam> wrote in message
news:%2******************@TK2MSFTNGP10.phx.gbl... Is there a way to launch a javascript command from within VB code? For
instance, to issue a window.open(some url) if a certain condition is met.
I know you can add the javacript to a control event at runtime, but i need
to just launch it, not wait for the user to click something.
JavaScript is just text in a response the server sends to the client. Unless
you are sending text to the client, there will be no JavaScript. The only
time you can send text to the client is at the end of the request.
Also, you seem to have some code, and you want that code to launch some
JavaScript. But how did that code get called if the user didn't click
anything?
--
John Saunders
johnwsaundersiii at hotmail
It's kind of like a validation function, kind of hard to explain.
Basically, when the user clicks a button, i want to run a small function,
and then if and only if a certain condition fails do i run the javascript.
"John Saunders" <jo**************@notcoldmail.com> wrote in message
news:uh**************@tk2msftngp13.phx.gbl... "Brian Henry" <br**********@newsgroups.nospam> wrote in message
news:%2******************@TK2MSFTNGP10.phx.gbl... Is there a way to launch a javascript command from within VB code? For
instance, to issue a window.open(some url) if a certain condition is
met. I know you can add the javacript to a control event at runtime, but i need to just launch it, not wait for the user to click something.
JavaScript is just text in a response the server sends to the client.
Unless you are sending text to the client, there will be no JavaScript. The only
time you can send text to the client is at the end of the request.
Also, you seem to have some code, and you want that code to launch some
JavaScript. But how did that code get called if the user didn't click
anything?
--
John Saunders
johnwsaundersiii at hotmail
"Brian Henry" <br**********@newsgroups.nospam> wrote in message
news:Op**************@tk2msftngp13.phx.gbl... It's kind of like a validation function, kind of hard to explain.
Basically, when the user clicks a button, i want to run a small function,
and then if and only if a certain condition fails do i run the javascript.
I'm sorry, but I'm afraid you're should learn a bit more about the execution
model of ASP.NET before tackling this task. Perhaps this will help: The
ASP.NET Page Object Model
(http://msdn.microsoft.com/library/de...-us/dnaspp/htm
l/aspnet-pageobjectmodel.asp?frame=true). Realize that this happens on the
initial request, and on _every_ postback.
--
John Saunders
johnwsaundersiii at hotmail
"John Saunders" <jo**************@notcoldmail.com> wrote in message
news:uh**************@tk2msftngp13.phx.gbl... "Brian Henry" <br**********@newsgroups.nospam> wrote in message
news:%2******************@TK2MSFTNGP10.phx.gbl... Is there a way to launch a javascript command from within VB code?
For instance, to issue a window.open(some url) if a certain condition is met. I know you can add the javacript to a control event at runtime, but i
need to just launch it, not wait for the user to click something.
JavaScript is just text in a response the server sends to the client.
Unless you are sending text to the client, there will be no JavaScript. The
only time you can send text to the client is at the end of the request.
Also, you seem to have some code, and you want that code to launch some
JavaScript. But how did that code get called if the user didn't click
anything?
--
John Saunders
johnwsaundersiii at hotmail
If you want to validate something in client side code before you
submit, bind a client side event to your submit button.
**** server code ****
myBtn.Attributes.Add("OnClick","return Validate();");
**** client code ****
function Validate() {
// do some logic
return true or false;
}
when the use clicks the button, the client side validation method is
called, and if you return true, the form will post.
Eg. VB.Net code:
If flag = true the
response.write("<script language = 'javascript'>alert('the flag was
succesful');</script>")
else
response.write("<script language = 'javascript'>alert('the flag was
Unsuccesful');</script>")
end if
Sagar.
"Brian Henry" <br**********@newsgroups.nospam> wrote in message
news:%2******************@TK2MSFTNGP10.phx.gbl... Is there a way to launch a javascript command from within VB code? For
instance, to issue a window.open(some url) if a certain condition is met.
I know you can add the javacript to a control event at runtime, but i need
to just launch it, not wait for the user to click something.
Thanks
"Anand Sagar" <ba******@yahoo.com> wrote in message
news:eP**************@TK2MSFTNGP12.phx.gbl... Eg. VB.Net code:
If flag = true the
response.write("<script language = 'javascript'>alert('the flag was
succesful');</script>")
else
response.write("<script language = 'javascript'>alert('the flag was
Unsuccesful');</script>")
end if
This VB.NET code will have been executed in response to a user action, e.g.
a click.
--
John Saunders
johnwsaundersiii at hotmail
"Brian Henry" <br**********@newsgroups.nospam> wrote in message
news:%2******************@TK2MSFTNGP10.phx.gbl... Is there a way to launch a javascript command from within VB code? For
instance, to issue a window.open(some url) if a certain condition is
met. I know you can add the javacript to a control event at runtime, but i need
to just launch it, not wait for the user to click something.
Thanks
What if I wanted to call my of function test() ? How would I do that?
Response.Write("<script language = 'javascript'>test();</script>");
....dows not work
"Anand Sagar" <ba******@yahoo.com> wrote in message
news:eP**************@TK2MSFTNGP12.phx.gbl... Eg. VB.Net code:
If flag = true the
response.write("<script language = 'javascript'>alert('the flag was
succesful');</script>")
else
response.write("<script language = 'javascript'>alert('the flag was
Unsuccesful');</script>")
end if
Sagar.
"Brian Henry" <br**********@newsgroups.nospam> wrote in message
news:%2******************@TK2MSFTNGP10.phx.gbl... Is there a way to launch a javascript command from within VB code? For
instance, to issue a window.open(some url) if a certain condition is
met. I know you can add the javacript to a control event at runtime, but i need
to just launch it, not wait for the user to click something.
Thanks
"Alexander Kaplunov" <ka******@hotmail.com> wrote in message
news:Oz**************@TK2MSFTNGP10.phx.gbl... What if I wanted to call my of function test() ? How would I do that?
Response.Write("<script language = 'javascript'>test();</script>");
...dows not work
Could you please provide some detail? Exactly how does it "not work"?
And did you define a function called "test"?
--
John Saunders
johnwsaundersiii at hotmail
"Anand Sagar" <ba******@yahoo.com> wrote in message
news:eP**************@TK2MSFTNGP12.phx.gbl... Eg. VB.Net code:
If flag = true the
response.write("<script language = 'javascript'>alert('the flag was
succesful');</script>")
else
response.write("<script language = 'javascript'>alert('the flag was
Unsuccesful');</script>")
end if
Sagar.
"Brian Henry" <br**********@newsgroups.nospam> wrote in message
news:%2******************@TK2MSFTNGP10.phx.gbl... Is there a way to launch a javascript command from within VB code?
For instance, to issue a window.open(some url) if a certain condition is met. I know you can add the javacript to a control event at runtime, but i
need to just launch it, not wait for the user to click something.
Thanks
Yes I do have test function defined.
When I execute the code I get error on the page "Error: Object expected"
I can execute alert(), window.open(), etc. functions but not functions that
I define.
Thanks for your help.
Alex.
"John Saunders" <jo**************@notcoldmail.com> wrote in message
news:#a**************@tk2msftngp13.phx.gbl... "Alexander Kaplunov" <ka******@hotmail.com> wrote in message
news:Oz**************@TK2MSFTNGP10.phx.gbl... What if I wanted to call my of function test() ? How would I do that?
Response.Write("<script language = 'javascript'>test();</script>");
...dows not work
Could you please provide some detail? Exactly how does it "not work"?
And did you define a function called "test"?
--
John Saunders
johnwsaundersiii at hotmail
"Anand Sagar" <ba******@yahoo.com> wrote in message
news:eP**************@TK2MSFTNGP12.phx.gbl... Eg. VB.Net code:
If flag = true the
response.write("<script language = 'javascript'>alert('the flag was
succesful');</script>")
else
response.write("<script language = 'javascript'>alert('the flag was
Unsuccesful');</script>")
end if
Sagar.
"Brian Henry" <br**********@newsgroups.nospam> wrote in message
news:%2******************@TK2MSFTNGP10.phx.gbl...
> Is there a way to launch a javascript command from within VB code? For > instance, to issue a window.open(some url) if a certain condition is
met. I
> know you can add the javacript to a control event at runtime, but i need to
> just launch it, not wait for the user to click something.
>
> Thanks
>
>
"Alexander Kaplunov" <ka******@hotmail.com> wrote in message
news:Oh**************@TK2MSFTNGP09.phx.gbl... Yes I do have test function defined.
When I execute the code I get error on the page "Error: Object expected"
I can execute alert(), window.open(), etc. functions but not functions
that I define.
Can you create a reproducer and show us the code?
--
John Saunders
johnwsaundersiii at hotmail
"John Saunders" <jo**************@notcoldmail.com> wrote in message
news:#a**************@tk2msftngp13.phx.gbl... "Alexander Kaplunov" <ka******@hotmail.com> wrote in message
news:Oz**************@TK2MSFTNGP10.phx.gbl... What if I wanted to call my of function test() ? How would I do that?
Response.Write("<script language = 'javascript'>test();</script>");
...dows not work
Could you please provide some detail? Exactly how does it "not work"?
And did you define a function called "test"?
--
John Saunders
johnwsaundersiii at hotmail
"Anand Sagar" <ba******@yahoo.com> wrote in message
news:eP**************@TK2MSFTNGP12.phx.gbl...
> Eg. VB.Net code:
>
> If flag = true the
> response.write("<script language = 'javascript'>alert('the flag was
> succesful');</script>")
> else
> response.write("<script language = 'javascript'>alert('the flag was
> Unsuccesful');</script>")
> end if
>
>
> Sagar.
>
> "Brian Henry" <br**********@newsgroups.nospam> wrote in message
> news:%2******************@TK2MSFTNGP10.phx.gbl...
> > Is there a way to launch a javascript command from within VB code?
For > > instance, to issue a window.open(some url) if a certain condition
is met.
> I
> > know you can add the javacript to a control event at runtime, but
i need > to
> > just launch it, not wait for the user to click something.
> >
> > Thanks
> >
> >
>
>
Sure. Here is it:
Client code:
function test()
{
alert("Got test!");
}
Code-behind (server)
public void Button2_Click(object sender, System.EventArgs e)
{
Response.Write("<script language='javascript'>test();</script>");
}
Thanks, Alex.
"John Saunders" <jo**************@notcoldmail.com> wrote in message news:uC*************@tk2msftngp13.phx.gbl... "Alexander Kaplunov" <ka******@hotmail.com> wrote in message
news:Oh**************@TK2MSFTNGP09.phx.gbl... Yes I do have test function defined.
When I execute the code I get error on the page "Error: Object expected"
I can execute alert(), window.open(), etc. functions but not functions
that I define.
Can you create a reproducer and show us the code?
--
John Saunders
johnwsaundersiii at hotmail
"John Saunders" <jo**************@notcoldmail.com> wrote in message
news:#a**************@tk2msftngp13.phx.gbl... "Alexander Kaplunov" <ka******@hotmail.com> wrote in message
news:Oz**************@TK2MSFTNGP10.phx.gbl...
> What if I wanted to call my of function test() ? How would I do that?
>
> Response.Write("<script language = 'javascript'>test();</script>");
>
> ...dows not work
Could you please provide some detail? Exactly how does it "not work"?
And did you define a function called "test"?
--
John Saunders
johnwsaundersiii at hotmail
> "Anand Sagar" <ba******@yahoo.com> wrote in message
> news:eP**************@TK2MSFTNGP12.phx.gbl...
> > Eg. VB.Net code:
> >
> > If flag = true the
> > response.write("<script language = 'javascript'>alert('the flag was
> > succesful');</script>")
> > else
> > response.write("<script language = 'javascript'>alert('the flag was
> > Unsuccesful');</script>")
> > end if
> >
> >
> > Sagar.
> >
> > "Brian Henry" <br**********@newsgroups.nospam> wrote in message
> > news:%2******************@TK2MSFTNGP10.phx.gbl...
> > > Is there a way to launch a javascript command from within VB code?
For
> > > instance, to issue a window.open(some url) if a certain condition is > met.
> > I
> > > know you can add the javacript to a control event at runtime, but i need
> > to
> > > just launch it, not wait for the user to click something.
> > >
> > > Thanks
> > >
> > >
> >
> >
>
>
You cannot call a explicitly written at design time js function from a
Response.Write call. You have to write the complete text of the function at
run-time
Here is a VB.Net code for it.
Dim JString as String
jString = "function Test(){"
jString += "alert('this is a line inside the finction');"
jString += "}"
Response.Write("<script language = 'javascript'>" + jString + "</script>")
"Alexander Kaplunov" <ka******@hotmail.com> wrote in message
news:Oz**************@TK2MSFTNGP10.phx.gbl... What if I wanted to call my of function test() ? How would I do that?
Response.Write("<script language = 'javascript'>test();</script>");
...dows not work
"Anand Sagar" <ba******@yahoo.com> wrote in message
news:eP**************@TK2MSFTNGP12.phx.gbl... Eg. VB.Net code:
If flag = true the
response.write("<script language = 'javascript'>alert('the flag was
succesful');</script>")
else
response.write("<script language = 'javascript'>alert('the flag was
Unsuccesful');</script>")
end if
Sagar.
"Brian Henry" <br**********@newsgroups.nospam> wrote in message
news:%2******************@TK2MSFTNGP10.phx.gbl... Is there a way to launch a javascript command from within VB code?
For instance, to issue a window.open(some url) if a certain condition is met. I know you can add the javacript to a control event at runtime, but i
need to just launch it, not wait for the user to click something.
Thanks
This code does not cause an error but it does not call the Test() function
either. Basically, nothing happens.
Alex.
"Anand Sagar" <ba******@yahoo.com> wrote in message
news:uZ*************@tk2msftngp13.phx.gbl... You cannot call a explicitly written at design time js function from a
Response.Write call. You have to write the complete text of the function
at run-time
Here is a VB.Net code for it.
Dim JString as String
jString = "function Test(){"
jString += "alert('this is a line inside the finction');"
jString += "}"
Response.Write("<script language = 'javascript'>" + jString +
"</script>")
"Alexander Kaplunov" <ka******@hotmail.com> wrote in message
news:Oz**************@TK2MSFTNGP10.phx.gbl... What if I wanted to call my of function test() ? How would I do that?
Response.Write("<script language = 'javascript'>test();</script>");
...dows not work
"Anand Sagar" <ba******@yahoo.com> wrote in message
news:eP**************@TK2MSFTNGP12.phx.gbl... Eg. VB.Net code:
If flag = true the
response.write("<script language = 'javascript'>alert('the flag was
succesful');</script>")
else
response.write("<script language = 'javascript'>alert('the flag was
Unsuccesful');</script>")
end if
Sagar.
"Brian Henry" <br**********@newsgroups.nospam> wrote in message
news:%2******************@TK2MSFTNGP10.phx.gbl...
> Is there a way to launch a javascript command from within VB code? For > instance, to issue a window.open(some url) if a certain condition is
met. I
> know you can add the javacript to a control event at runtime, but i need to
> just launch it, not wait for the user to click something.
>
> Thanks
>
>
This code does not cause an error but it does not call the Test() function
either. Basically, nothing happens.
Alex.
"Anand Sagar" <ba******@yahoo.com> wrote in message
news:uZ*************@tk2msftngp13.phx.gbl... You cannot call a explicitly written at design time js function from a
Response.Write call. You have to write the complete text of the function
at run-time
Here is a VB.Net code for it.
Dim JString as String
jString = "function Test(){"
jString += "alert('this is a line inside the finction');"
jString += "}"
Response.Write("<script language = 'javascript'>" + jString +
"</script>")
"Alexander Kaplunov" <ka******@hotmail.com> wrote in message
news:Oz**************@TK2MSFTNGP10.phx.gbl... What if I wanted to call my of function test() ? How would I do that?
Response.Write("<script language = 'javascript'>test();</script>");
...dows not work
"Anand Sagar" <ba******@yahoo.com> wrote in message
news:eP**************@TK2MSFTNGP12.phx.gbl... Eg. VB.Net code:
If flag = true the
response.write("<script language = 'javascript'>alert('the flag was
succesful');</script>")
else
response.write("<script language = 'javascript'>alert('the flag was
Unsuccesful');</script>")
end if
Sagar.
"Brian Henry" <br**********@newsgroups.nospam> wrote in message
news:%2******************@TK2MSFTNGP10.phx.gbl...
> Is there a way to launch a javascript command from within VB code? For > instance, to issue a window.open(some url) if a certain condition is
met. I
> know you can add the javacript to a control event at runtime, but i need to
> just launch it, not wait for the user to click something.
>
> Thanks
>
>
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