Response.Redirect ("?")传值问题

Question

              string na = this.TextBox1.Text;
            string va = this.DropDownList1.SelectedValue;
            Response.Redirect ("managesoubk.aspx?selename="&na&"&value="&va);错误//运算符“&”无法应用于“string”和“string”类型的操作数             
老出现这个错误.怎么办啊?

Answer 1

C#string na = this.TextBox1.Text; 
            string va = this.DropDownList1.SelectedValue; 
            Response.Redirect ("managesoubk.aspx?selename="+na+"&value="+va);