How to call Javascript function using Response.Write() RSS

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  harish_s

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  How to call Javascript function using Response.Write()

  Jun 16, 2006 12:25 PM|LINK

  Hi all there, [:)]

  Its Harish a newbee to this forum. I want to call a javascript within code behind using Response.Write. How can i achieve this.

  Plz help.

  Thanx in advance.

  Regards

  harry

  Regards,
  Harry
  --Happy Programming--
  • Moved by XIII on Jun 16, 2006 12:29 PM
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  Aidy

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  Re: How to call Javascript function using Response.Write()

  Jun 16, 2006 02:16 PM|LINK

  You might want to elaborate on what you're trying to do. Response.Write simply adds text to the output stream. You can't "call" anything with it. Are you wanting to create a dynamic javascript function?
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  harish_s

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  Re: How to call Javascript function using Response.Write()

  Jun 16, 2006 02:22 PM|LINK

  thanx for reply,

  yes i want to create dynamic javascript function, which will restrict user to post the form unless and untill the fields are filled correctly.  

  Response.Write("<script language='javascript'>");
  Response.Write("alert('Please enter correct values.');");
  Response.Write("return false;");
  Response.Write("</script>");

   if i do such thing like above code with returning false, it display the alert message but then there is no content left for the page.

  plz help.

  thanx in advance

  regards,

  harry

  Regards,
  Harry
  --Happy Programming--
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  Aidy

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  Re: How to call Javascript function using Response.Write()

  Jun 16, 2006 02:30 PM|LINK

  You are probably better using Validation on your controls.

  <asp:TextBox ID="txtTextBox" Runat="server" />
  <asp:Button ID="cmdSubmit" Text="Submit" Runat="server" />
  <asp:RequiredFieldValidator ControlToValidate="txtTextBox" ErrorMessage="<P>You must supply some text.</P>"
  	EnableClientScript="True" Runat="server" />
  

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  LudovicoVan

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  Re: How to call Javascript function using Response.Write()

  Jun 16, 2006 05:32 PM|LINK

  Hello harish_s,

  apart from the good point from Aidy, i'd like to add a couple of notes.

     Response.Write("<script language='javascript'>");
     Response.Write("alert('Please enter correct values.');");
     Response.Write("return false;");
     Response.Write("</script>");
  

  This way you get literal opening brackets in you page! If the problem is you are not in code-behind and the parser gets confused, maybe try this syntax:

     Response.Write("<script language='javascript'>");
     Response.Write("alert('Please enter correct values.');");
     Response.Write("return false;");
     Response.Write("<" + "/script>");

  Also note that you are not wrapping those javascript statements into a function, so you are actually returning to...?

  Finally, about getting started, i'd suggest you try this site's very good tutorial, where you can read about most basic concepts: http://www.asp.net/quickstart/aspnet/

  HTH. -LV
  

  • Edited by LudovicoVan on Jun 16, 2006 05:41 PM
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  iloveny

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  Re: How to call Javascript function using Response.Write()

  Jun 16, 2006 08:12 PM|LINK

  I would rather use the Required Field Validator like what Aidy said. It is simpler and doesn't require extra code. If you use Javascript, you probably need extra code to put it at the beginning of you the BODY tag.
   Also, validator in Asp.net 2.0 has a lot of variation. you can validate phone number and zip code for example.
  
  Live Happily. How?
• • Reply
  

  harish_s

  Member

  20 Points

  4 Posts

  Re: How to call Javascript function using Response.Write()

  Jul 06, 2006 11:38 AM|LINK

  Hi there,

  thanx alot guys for such a wonder ful help, anyways it worked out for me. thanx alot.

  regards,

  harry

  Regards,
  Harry
  --Happy Programming--
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  rkeslar

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  900 Posts

  Re: How to call Javascript function using Response.Write()

  Aug 01, 2012 09:12 PM|LINK

  LudovicoVan

  Hello harish_s,

  apart from the good point from Aidy, i'd like to add a couple of notes.

     Response.Write("&lt;script language='javascript'>");
     Response.Write("alert('Please enter correct values.');");
     Response.Write("return false;");
     Response.Write("&lt;/script>");
  

  This way you get literal opening brackets in you page! If the problem is you are not in code-behind and the parser gets confused, maybe try this syntax:

     Response.Write("<script language='javascript'>");
     Response.Write("alert('Please enter correct values.');");
     Response.Write("return false;");
     Response.Write("<" + "/script>");

  Also note that you are not wrapping those javascript statements into a function, so you are actually returning to...?

  Finally, about getting started, i'd suggest you try this site's very good tutorial, where you can read about most basic concepts: http://www.asp.net/quickstart/aspnet/

  HTH. -LV

  The bolded/italic format worked fine for me. Thanks