private void RenderColumnHeader(GridRendererContext rendererContext, PropertyInfo property) { var columnConfiguration = rendererContext.ActualColumnConfiguration; rendererContext.OpenElement(HtmlTagNames.TableHeadCell, rendererContext.CssClasses.TableHeaderCell, GetColumnStyle(columnConfiguration)); rendererContext.OpenElement(HtmlTagNames.Div); rendererContext.AddAttribute(HtmlAttributes.Style, "position: relative;"); if (columnConfiguration == null) { rendererContext.AddContent(GetColumnCaption(columnConfiguration, property)); rendererContext.CloseElement(); rendererContext.CloseElement(); return; } if (columnConfiguration.IsSortable) { RenderSortableColumnHeader(rendererContext, property, columnConfiguration); } else { rendererContext.AddContent(GetColumnCaption(columnConfiguration, property)); } if (columnConfiguration.IsFilterable) { rendererContext.AddFilterComponent(property); } rendererContext.CloseElement(); rendererContext.CloseElement(); }