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Prevent PostBack

I have an image button on my page that runs some javascript:

<asp:ImageButto n runat="server" id="ImageButton 3"
ImageUrl="Graph ics/Help.png" AlternateText=" Help"
onclientclick=" javascript:Show Help('help_rent .aspx')" />

ShowHelp() is a function that I create that calls window.open().

It works okay--it pops up a separate help window with content from another
page--but it also refreshes the current page, which I want to prevent.

How do I stop the default behavior?

Jonathan

Oct 1 '07 #1
6 3829
onclientclick=" ShowHelp('help_ rent.aspx');ret urn false;" />

-- bruce (sqlwork.com);

Jonathan Wood wrote:
I have an image button on my page that runs some javascript:

<asp:ImageButto n runat="server" id="ImageButton 3"
ImageUrl="Graph ics/Help.png" AlternateText=" Help"
onclientclick=" javascript:Show Help('help_rent .aspx')" />

ShowHelp() is a function that I create that calls window.open().

It works okay--it pops up a separate help window with content from
another page--but it also refreshes the current page, which I want to
prevent.

How do I stop the default behavior?

Jonathan
Oct 1 '07 #2
Works! Thanks.

--
Jonathan Wood
SoftCircuits Programming
http://www.softcircuits.com

"Teemu Keiski" <jo****@aspalli ance.comwrote in message
news:%2******** *******@TK2MSFT NGP04.phx.gbl.. .
Hi,

add ";return false;" after call to ShowHelp()
--
Teemu Keiski
AspInsider, ASP.NET MVP
http://blogs.aspadvice.com/joteke
http://teemukeiski.net


"Jonathan Wood" <jw***@softcirc uits.comwrote in message
news:eO******** ******@TK2MSFTN GP06.phx.gbl...
>>I have an image button on my page that runs some javascript:

<asp:ImageButt on runat="server" id="ImageButton 3"
ImageUrl="Grap hics/Help.png" AlternateText=" Help"
onclientclick= "javascript:Sho wHelp('help_ren t.aspx')" />

ShowHelp() is a function that I create that calls window.open().

It works okay--it pops up a separate help window with content from
another page--but it also refreshes the current page, which I want to
prevent.

How do I stop the default behavior?

Jonathan

Oct 1 '07 #3
Wow. Active group. Thanks.

--
Jonathan Wood
SoftCircuits Programming
http://www.softcircuits.com

"bruce barker" <no****@nospam. comwrote in message
news:uz******** ******@TK2MSFTN GP03.phx.gbl...
onclientclick=" ShowHelp('help_ rent.aspx');ret urn false;" />

-- bruce (sqlwork.com);

Jonathan Wood wrote:
>I have an image button on my page that runs some javascript:

<asp:ImageButt on runat="server" id="ImageButton 3"
ImageUrl="Grap hics/Help.png" AlternateText=" Help"
onclientclick= "javascript:Sho wHelp('help_ren t.aspx')" />

ShowHelp() is a function that I create that calls window.open().

It works okay--it pops up a separate help window with content from
another page--but it also refreshes the current page, which I want to
prevent.

How do I stop the default behavior?

Jonathan
Oct 1 '07 #4
And I assume you mean to change the call to onclientclick=" javascript:retu rn
ShowHelp('help_ desc.aspx')"

Thanks.

--
Jonathan Wood
SoftCircuits Programming
http://www.softcircuits.com

"Cowboy (Gregory A. Beamer)" <No************ @comcast.netNoS pamMwrote in
message news:e1******** *****@TK2MSFTNG P02.phx.gbl...
You can have ShowHelp() return false, as well.

--
Gregory A. Beamer
MVP, MCP: +I, SE, SD, DBA

*************** *************** *************** ****
| Think outside the box! |
*************** *************** *************** ****
"Jonathan Wood" <jw***@softcirc uits.comwrote in message
news:eO******** ******@TK2MSFTN GP06.phx.gbl...
>>I have an image button on my page that runs some javascript:

<asp:ImageButt on runat="server" id="ImageButton 3"
ImageUrl="Grap hics/Help.png" AlternateText=" Help"
onclientclick= "javascript:Sho wHelp('help_ren t.aspx')" />

ShowHelp() is a function that I create that calls window.open().

It works okay--it pops up a separate help window with content from
another page--but it also refreshes the current page, which I want to
prevent.

How do I stop the default behavior?

Jonathan

Oct 1 '07 #5
You can have ShowHelp() return false, as well.

--
Gregory A. Beamer
MVP, MCP: +I, SE, SD, DBA

*************** *************** *************** ****
| Think outside the box!
|
*************** *************** *************** ****
"Jonathan Wood" <jw***@softcirc uits.comwrote in message
news:eO******** ******@TK2MSFTN GP06.phx.gbl...
>I have an image button on my page that runs some javascript:

<asp:ImageButto n runat="server" id="ImageButton 3"
ImageUrl="Graph ics/Help.png" AlternateText=" Help"
onclientclick=" javascript:Show Help('help_rent .aspx')" />

ShowHelp() is a function that I create that calls window.open().

It works okay--it pops up a separate help window with content from another
page--but it also refreshes the current page, which I want to prevent.

How do I stop the default behavior?

Jonathan

Oct 1 '07 #6
Pretty much anything that sends back a false will interrupt the postback.

--
Gregory A. Beamer
MVP, MCP: +I, SE, SD, DBA

*************** *************** *************** ****
| Think outside the box!
|
*************** *************** *************** ****
"Jonathan Wood" <jw***@softcirc uits.comwrote in message
news:uO******** ********@TK2MSF TNGP02.phx.gbl. ..
And I assume you mean to change the call to
onclientclick=" javascript:retu rn ShowHelp('help_ desc.aspx')"

Thanks.

--
Jonathan Wood
SoftCircuits Programming
http://www.softcircuits.com

"Cowboy (Gregory A. Beamer)" <No************ @comcast.netNoS pamMwrote in
message news:e1******** *****@TK2MSFTNG P02.phx.gbl...
>You can have ShowHelp() return false, as well.

--
Gregory A. Beamer
MVP, MCP: +I, SE, SD, DBA

************** *************** *************** *****
| Think outside the box! |
************** *************** *************** *****
"Jonathan Wood" <jw***@softcirc uits.comwrote in message
news:eO******* *******@TK2MSFT NGP06.phx.gbl.. .
>>>I have an image button on my page that runs some javascript:

<asp:ImageBut ton runat="server" id="ImageButton 3"
ImageUrl="Gra phics/Help.png" AlternateText=" Help"
onclientclick ="javascript:Sh owHelp('help_re nt.aspx')" />

ShowHelp() is a function that I create that calls window.open().

It works okay--it pops up a separate help window with content from
another page--but it also refreshes the current page, which I want to
prevent.

How do I stop the default behavior?

Jonathan


Oct 2 '07 #7

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