在按钮事件上添加参数传递

 <asp:linkButton runat="server" id="linkButton1" text="edit" commandName="EditRole" commandArgument='<%#Eval("Project")%>' onCommand='LinkButton1_Click'/>

   protected void LinkButton1_Click(object sender, CommandEventArgs e)
    {  
        Response.Write(e.CommandArgument.ToString());
    }