Ext.Net.GridView.HeaderRows_AfterItemAdd C# (CSharp) Method

        private void HeaderRows_AfterItemAdd(HeaderRow item)
        {
            if (this.ParentGrid != null)
            {
                foreach (HeaderColumn column in item.Columns)
                {
                    this.ParentGrid.EnsureHeaderColumn(this,column);
                }                
            }
            
            item.Columns.AfterItemAdd += Columns_AfterItemAdd;
            this.Templates.BuildHeaderTemplate();
            this.Templates.Header.Visible = true;
        }