Tried replace, trim but cannot remove the quotation mark from a string C#

Question

I am making a application which can convert a excel file to CSV file.

However, some string contain a quotation mark, so when the CSV exported, some of the String was spl

Answer 1

Since strings are immutable in .NET, you can't change their values. That means that a new string is made on every write operation on a string.

Because of that, every method which 'modifies' a string returns a new string instead. So you have to assign that value:

HTMLTable = HTMLTable.Replace("\"", ""); 

Answer 2

You need to know, that .Replace doesn't change existing string but return new string after replace operation.

HTMLTable = HTMLTable.Replace("\"", "");

https://msdn.microsoft.com/pl-pl/library/fk49wtc1(v=vs.110).aspx

Answer 3

You aren't assigning the result of the Trim or replace to a string.

You need to do something like

HtmlTable = HtmlTable.Replace("\"", string.Empty);

Looking at your comment, if you don't like string.Empty then you need to do

HtmlTable = HtmlTable.Replace("\"", "");