CODEWITHSUNDEEP
c#stringparsingsubstring
Ydhem
Ydhem

Reputation: 928

Substring on an html tag containing quotes

How can I properly use substring, at least, make it work ?

I want to find the position of this substring '#fff'\"> in the stringString this.style.backgroundColor='#fff'\">Choose a translation mode,

I'm doing this :

string substrToSearch = "'#fff'\\\">";
int substrPosition = stringString.IndexOf(substrToSearch);

Unfortunately, substrPosition = -1, and it is not working. May someone help me ?

EDIT SOLVED :

I don't realy understand why I can't do this string quote = " " "; but I can do this quote = " \" " ,in fact I know that I can but.. here, the "\" is used as an escaping character, so why in the substring that I'm searching it is not interpreted as an escape character but as simple text ?

To me , string substrToSearch = "'#fff'\">";, substrToSearch is '#fff'"> as \" = ".

To be simple, why \" is not interpreted as an escape character ?

Upvotes: 2

Views: 196

Answers (3)

JLRishe
JLRishe

Reputation: 101730

The answer to your added question is fundamental to the concept of string escaping. The syntax string quote = " " "; is problematic because a compiler would think that the string ended with the second quote and not the third one. String escaping allows representing an actual quotation mark with \", so the actual value of " \" " is ", not \".

Upvotes: 1

Lance Collins
Lance Collins

Reputation: 3445

Here you go...

    [TestMethod]
    public void StringIndex
    {
        var stringString = "this.style.backgroundColor='#fff'\">Choose a translation mode,:";
        var substrToSearch = "'#fff'\">";
        var substrPosition = stringString.IndexOf(substrToSearch);

    }

Upvotes: 1

Huy Doan
Huy Doan

Reputation: 131

try this:

string substrToSearch = "'#fff'\">";

the stringString is not ecapsed when you access it

Upvotes: 1

Related Questions