Asp.Net LinkButton Onclick = method( container.dataitem ), need help with syntax

I have a linkbutton that I want to call a method in the code behind. The method takes a parameter of which I need to stick in a container.dataitem. I know the container.dataitem syntax is correct because I use it in other controls. What I don't know is how to user it a parameter for a method. Upon clicking on the button, the method should be called with the container.dataitem. The method is called 'AddFriend(string username)' Below is code. Thank you!

<asp:LinkButton ID="lbAddFriend" runat="server" OnClick='<%# "AddFriend(" +((System.Data.DataRowView)Container.DataItem)["UserName"]+ ")" %>' Text="AddFriend"></asp:LinkButton></td>

From stackoverflow

• You need to use a ButtonField and handle the click in RowCommand. Check the MSDN docs

   <asp:buttonfield buttontype="Link" 
                    commandname="Add" 
                    text="Add"/>
  

  And in the code behind...

    void ContactsGridView_RowCommand(Object sender, GridViewCommandEventArgs e)
    {
      if(e.CommandName=="Add")
      {
           AddFriend(DataBinder.Eval(Container.DataItem, "Price""UserName"));
      }
    }
  

  : The linkbutton is in a datalist.

• I think the same thing applies to a data list, but I've been using this for a repeater in my code behind. Mayby use DataListItemEventArgs and DataListCommandEventArgs in place of the Repeater.

  protected void rptUserInfo_Data(object sender, RepeaterItemEventArgs e)
  {
      if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
      {
          UserInfo oUserInfo = e.Item.DataItem as UserInfo;
  
          LinkButton hlUser = e.Item.FindControl("hlUser") as LinkButton;
          hlUser.Text = oUserInfo.Name;
          hlUser.CommandArgument = oUserInfo.UserID + ";" + oUserInfo.uName;
          hlUser.CommandName = "User";
      }
  }
  public void UserArtItem_Command(Object sende, RepeaterCommandEventArgs e)
  {
      if (e.CommandName == "User")
      {
          string command = e.CommandArgument.ToString();
          string[] split = command.Split(new Char[] { ';' });
  
          Session["ArtUserId"] = split[0];
          Session["ArtUserName"] = split[1];
          Response.Redirect("~/Author/" + split[1]);
      }
  }
  

• Maybe this?

  <asp:LinkButton ID="lbAddFriend" runat="server"
   Text="Add Friend" OnCommand="AddFriend"
   CommandArgument='<%# Eval("UserName").ToString() %>' />
  

  Then in the code:

  Protected Sub AddFriend(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.CommandEventArgs)
      Dim UserName As String = e.CommandArgument
      'Rest of code
  End Sub