Do we have macros in c#?

can u tell me how to pass a value from gridview to anotherpage through a button in the gridview
suppose i click on the button (template field).there is a col email. ijust send the email id to another textbox of another page

There isn't an equivalent as C# doesn't support macros.

There is a preprocessor directive called #define but this isn't the same thing as a macro. See this link:

http://msdn.microsoft.com/en-us/library/ed8yd1ha(v=vs.100).aspx