Question: I've inherited some C# code that contains about a thousand lines of source that I need to modify, transforming it from this:

```
newDataRow["to_dir"] = comboBox108.Text;

```

To this:

```
assetAttributes.Add("to_dir", comboBox108.Text);

```

The lines occur in various places throughout the application in groups of 40 or 50. Modifying each line by hand in Visual Studio 2008 can be done but it's labor intensive and prone to errors.

Is there a Windows utility out there that will let me cut and paste groups of code into it and then run some sort of reg-ex expression to transform the individual lines one-by-one? I'd also be willing to use some sort of VS 2008 add-in that performed the same set of reg-ex operations against a selection of code.

Thanks in advance.

Answer: 
While not a great experience, you can use the VS2008 built-in search & replace to do this.

Note that it has its own regex syntax. To do this, go to Edit | Find & Replace | Replace in files. Then expand "Find Options" and select use regular expressions.

Try this - test and fix... For your search term, use  

`newDataRow\[{"[."]*"}\] = {[^;]*}`
and replace with
 `assetAttributes.Add\("\1", \2\);`

The \1 and \2 identifiers are the first and second groups (surrounded with {}) that were found. hit the arrows next to the search terms for a menu, select the botom option to go to help.
Using the regular expression search and replace, you can search for:

```
newDataRow\["([a-zA-Z_]+)"\] = comboBox([0-9]+).Text;

```

and replace with

```
assetAttributes.Add("\1", comboBox\2.Text);

```

which should do the trick :o)