You can pass your column value using
HttpResponse.Redirect
Method
get the perticluar column value when user clicks on command button and then pass it to HttpResponse.Redirect Method as follows
Response.Redirect("page2.aspx?ColumnVal=" + Column_Value+ "");
Then from your page1.aspx page get it like below
string value = Request.QueryString["ColumnVal"];
then you can assign it to your lable
Also you can pass them using Session state
in page1.aspx assign column value to a session
Session["ColumnVal"] = "Column_Value";
then in your page2.aspx you can get it like this
string value= (string)(Session["ColumnVal"]);
Refer this MSDN article
http://msdn.microsoft.com/en-us/library/vstudio/6c3yckfw(v=vs.100).aspx[
^]