I just having a problems with javascript i am using on code behind on asp.net, after a few hour of figuring it out it turn out to be the problem of escape character.
At first i use this.
ScriptManager.RegisterStartupScript(this, this.GetType(), "temp", "alert('Can't delete this data because it is bound with rate plan');", true);
This will made javascript error because quotation at "can't" need to use escape character so i use.
ScriptManager.RegisterStartupScript(this, this.GetType(), "temp", "alert('Can\'t delete this data because it is bound with rate plan');", true);
but it still not work.
at last i use
ScriptManager.RegisterStartupScript(this, this.GetType(), "temp", "alert('Can\\'t delete this data because it is bound with rate plan');", true);
and it is fine.
i am just curious why we need to use \\'
instead of \'
in order to make escape character works correctly.
\
is an escape character in C# and in JavaScript.
When you give C# "\'"
is creates a string containing an apostrophe.
When you give C# "\\'"
then the first \
escapes the second \
(so the second \
isn't treated as an escape character) and the '
is treated as a plain '
(because the string is not delimited with '
.