Display literal string

[Lucas]

Hi,

I want to display an exception in a javascript alert and I'm rendering
that client code using

ClientScript.Re gisterStartupSc ript(GetType(), key,
string.Format(@ "<script>alert( 'ERROR:\r\n\r\n {0}');</script>",
ex.ToString())) ;

The problem is that ex.ToString() contains escape characters that not
appear literal in html.

For example:
"System.Data.Sq lClient.SqlExce ption: Cannot insert the value NULL into
column 'id_excepcion', table 'CI_Core.dbo.Tb l_GDC_Excepcion '; column
does not allow nulls. INSERT fails.\r\n at
System.Data.Sql Client.SqlConne ction.OnError(S qlException exception,
Boolean breakConnection )\r\n at
System.Data.Sql Client.SqlInter nalConnection.O nError(SqlExcep tion
exception, Boolean breakConnection )\r\n at
System.Data.Sql Client......"

appears in html as:

"System.Data.Sq lClient.SqlExce ption: Cannot insert the value NULL into
column 'id_excepcion', table 'CI_Core.dbo.Tb l_GDC_Excepcion '; column
does not allow nulls. INSERT fails.
at System.Data.Sql Client.SqlConne ction.OnError(S qlException
exception, Boolean breakConnection )
at System.Data.Sql Client.SqlInter nalConnection.O nError(SqlExcep tion
exception, Boolean breakConnection )
at System.Data.Sql Client......."

causing an error in the javascript alert because the line breaks.

How can i put the ex.ToString() in html as literal?

Thanks!

[Alberto Poblacion]

"Lucas" <la********@gma il.comwrote in message
news:b5******** *************** ***********@l32 g2000hse.google groups.com...

I want to display an exception in a javascript alert and I'm rendering
that client code using

ClientScript.Re gisterStartupSc ript(GetType(), key,
string.Format(@ "<script>alert( 'ERROR:\r\n\r\n {0}');</script>",
ex.ToString())) ;

The problem is that ex.ToString() contains escape characters that not
appear literal in html.

I pass the text of the exception through the following function, which I
don't claim to be optimal but gets the job done:

public static string EscapeText(stri ng text)
{
System.Text.Str ingBuilder sb = new System.Text.Str ingBuilder();
foreach (char c in text)
{
int asc = Convert.ToInt32 (c);
if (asc >= 0x28 && asc <= 0x5b) sb.Append(c);
else if (asc >= 0x5d && asc <= 0x7e) sb.Append(c);
else
{
string hex = string.Format(" {0:x}", asc);
if (hex.Length < 2) hex = "0" + hex;
sb.AppendFormat ("\\x" + hex);
}
}
return sb.ToString();
}

[Lucas]

It's a good solution, thanks!