替换Visual Studio正则表达式中的文本

Question

Recently I convert some of my old codes from vb.net to C# .

I need to change all my existing codes using visual studio regular expression (find & replace dialog inside Visual studio 2010 IDE)

Find

Rows(0).Item(0).ToString()

Replace with

 Rows[ 0 ][ 0 ].ToString()  

that means

 Rows(-- any --).Item(-- any --).ToString() \nto  \nRows[-- any --][-- any --].ToString() \n

I searched a lot but I am still not able to do this.

Tip: I am using visual studio 2010

My old vb.net code is

var firstColumnValue= dataTable.Rows(0).Item("firstColumn").ToString(); 
var secondColumnValue = dataTable.Rows(0).Item("SecondColumn").ToString();

When i am converting VB.net to C#, i got the following using this plugin, i got this.

var firstColumnValue= dataTable.Rows[0]["firstColumn"].ToString(); 
var secondColumnValue = dataTable.Rows[0]["SecondColumn"].ToString();

But i actually wants like below.

 var firstColumnValue= dataTable.Rows[0]["firstColumn"].ToString(); var secondColumnValue = dataTable.Rows[0]["SecondColumn"].ToString(); 

That vb.net to C# conversion tool converts almost all are fine but i need the above change in almost all files.

Answer 1

Use:

find : Rows({\\d*}).Item({\\d*}).ToString()

replace with : Rows[\\1][\\2].ToString()

and check Use Regular Expression in the search/replace window

Answer 2

Regex:

Rows\(([^)]*)\)\.Item\(([^)]*)\)(\.ToString\(\))

Replacement string:

Rows[\1][\2]\3

DEMO

Example:

string str = "foo bar Rows(0).Item(0).ToString() barfoo";
string result = Regex.Replace(str, @"Rows\(([^)]*)\)\.Item\(([^)]*)\)(\.ToString\(\))", "Rows[$1][$2]$3");
Console.WriteLine(result);
Console.ReadLine();

IDEONE

Find:

Rows\({([^)]*)}\)\.Item\({([^)]*)}\)(\.ToString\(\))

Replace:

Rows[\1][\2]\3

Answer 3

You can use Microsoft Visual Studio to convert code from VB to C#. You can use a free plug-ins like this one This simple plug-in for Visual Studio 2010/2012 allows you to convert VB.net code to C#

Also this regex solutions below are not so perfect. For example: a function call inside parentheses, like "foo bar Rows(0).Item(myfunc(n)).ToString() barfoo";