adding column to gridview, asp.net c#

original code that gets the data from the database and displays in gridview-works fine
 
private void LoadData()
        {
			DataTable partner = Partner.PartnerListCountByPartTypeAndLang();
 
            PartnerType[] partnerTypeList = PartnerType.List();
            
            partner.Columns.Add("Download Link");
 
            // for each partnerCode create DataView with records for each lang from partner DataTable
            for (int i = 0; i < partnerTypeList.Length; i++)
            {
                int partnerCode = partnerTypeList[i].Code;
                string filterString = "code="+partnerCode.ToString();
 
                DataView partnerLanguages = new DataView(partner, filterString, "", DataViewRowState.CurrentRows);
                
 
                if (partnerLanguages.Count > 0)
                {
                    
 
                    // create title control for partnerType
                    HtmlGenericControl partnerTitle = new HtmlGenericControl("h3");
                    partnerTitle.InnerText = partnerTypeList[i].Name;
 
                    this.Controls.Add(partnerTitle);
 
                    // create gridview object to hold result links
                    GridView partnerLinkView = new GridView();
                    this.Controls.Add(partnerLinkView);
 
                    partnerLinkView.DataSource = partnerLanguages;
                    partnerLinkView.DataBind();
 
                }
            }
        }
--------------------------------------------------------------------------------------------------
 
Trying to add the column
 
 
 private void LoadData()
        {
            DataTable partner = Partner.PartnerListCountByPartTypeAndLang();
 
            PartnerType[] partnerTypeList = PartnerType.List();
 
            // for each partnerCode create DataView with records for each lang from partner DataTable
            for (int i = 0; i < partnerTypeList.Length; i++)
            {
                int partnerCode = partnerTypeList[i].Code;
                string filterString = "code=" + partnerCode.ToString();
 
                DataView partnerLanguages = new DataView(partner, filterString, "", DataViewRowState.CurrentRows);
 
 
                if (partnerLanguages.Count > 0)
                {
 
                    // create title control for partnerType
                    HtmlGenericControl partnerTitle = new HtmlGenericControl("h3");
                    partnerTitle.InnerText = partnerTypeList[i].Name;
 
                    this.Controls.Add(partnerTitle);
 
                    TemplateField tf = new TemplateField();
                    tf.ItemTemplate =  // how to add the field here???????????
 
                   
 
                    // create gridview object to hold result links
                    GridView partnerLinkView = new GridView();
                    this.Controls.Add(partnerLinkView);
 
                    partnerLinkView.DataSource = partnerLanguages;
                    partnerLinkView.DataBind();
 
 
                }
            }
        }

                                  

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