Calling a script from code behind not working.. RSS

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  countycowpok...

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  Calling a script from code behind not working..

  Jun 20, 2012 05:00 PM|LINK

  I have some code behind that I am trying to call javascript with on the client side. Everything seems to work fine except when I try and introduce a \n into the messagebox text.  I have tried single and double quotes in the script line, but if I put anything in there to do with \n \r environmene.newline or anything it does not fire. I can however place random text and it does work.

  protected void btnGeneratePDF_Click(object sender, EventArgs e)
          {
              Page.Validate("TransValidation");
              if (Page.IsValid)
              {
                  stamp_PDF(true);
                  create_PDF();
              }
              else
              {
                  string msg = "";
                  foreach (IValidator aValidator in this.Validators)
                  {
                      if (!aValidator.IsValid)
                      {
                          msg += aValidator.ErrorMessage + "\n"; //Adding new line for each validator?
                      }
                  }
                  msgBox_error(msg);
              }
          }
  
          public void msgBox_error(String message)
          {
              Label msgBox = new Label();
              String msg = message;
              msgBox.Text = "<" + "script language='javascript'>" + Environment.NewLine + "window.alert(\"" + msg + "\") </" + "script>";
              Page.Controls.Add(msgBox);
          }

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  bbcompent1

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  Re: Calling a script from code behind not working..

  Jun 20, 2012 05:35 PM|LINK

  When we do a \n or \r, we need to escape it in C# so do that like this: 

  \n = \\n 

  \r = \\r

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  • Marked as answer by countycowpoke on Jun 20, 2012 06:22 PM
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  countycowpok...

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  Re: Calling a script from code behind not working..

  Jun 20, 2012 06:23 PM|LINK

  Thank you, I had thought the \ was the escape, but i guess that is part of the character.

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  bbcompent1

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  Re: Calling a script from code behind not working..

  Jun 21, 2012 01:38 PM|LINK

  Correct :)

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