Esempio n. 1
0
        void RenderHyperlink(RenderContext context, Boolean inGrid, Action <TagBuilder> onRender = null, Boolean inside = false, Boolean addOn = false)
        {
            Boolean bHasDropDown = DropDown != null;

            var tag = new TagBuilder("a", "a2-hyperlink", inGrid);

            tag.MergeAttribute("href", "javascript:void(0)");
            onRender?.Invoke(tag);
            var attrMode = MergeAttrMode.All;

            if (inside)
            {
                attrMode &= ~MergeAttrMode.Visibility;
            }
            MergeAttributes(tag, context, attrMode);
            MergeCommandAttribute(tag, context);
            tag.AddCssClassBool(Block, "block");
            tag.AddCssClassBool(Highlight, "highlight");
            if (!Block)
            {
                tag.AddCssClass("a2-inline");
            }

            if (IsNavigateExternal())
            {
                tag.MergeAttribute("rel", "noopener");
            }

            if (Size != ControlSize.Default)
            {
                switch (Size)
                {
                case ControlSize.Small:
                    tag.AddCssClass("small");
                    break;

                case ControlSize.Large:
                    tag.AddCssClass("large");
                    break;

                case ControlSize.Normal:
                    tag.AddCssClass("normal");
                    break;

                default:
                    throw new XamlException("Only ControlSize.Small, ControlSize.Normal or ControlSize.Large are supported for the Hyperlink");
                }
            }

            if (bHasDropDown)
            {
                tag.MergeAttribute("toggle", String.Empty);
            }

            if (!String.IsNullOrEmpty(TestId) && context.IsDebugConfiguration)
            {
                tag.MergeAttribute("test-id", TestId);
            }

            tag.RenderStart(context);

            RenderIcon(context, Icon);
            var cbind = GetBinding(nameof(Content));

            if (cbind != null)
            {
                new TagBuilder("span")
                .MergeAttribute("v-text", cbind.GetPathFormat(context))
                .Render(context);
            }
            else if (Content is UIElementBase)
            {
                (Content as UIElementBase).RenderElement(context);
            }
            else if (Content != null)
            {
                context.Writer.Write(context.LocalizeCheckApostrophe(Content.ToString()));
            }

            if (bHasDropDown && !addOn && !HideCaret)
            {
                var bDropUp = (DropDown as DropDownMenu)?.IsDropUp;
                new TagBuilder("span", "caret")
                .AddCssClassBool(bDropUp, "up")
                .Render(context);
            }
            RenderHint(context);
            tag.RenderEnd(context);
        }
Esempio n. 2
0
        }                                                // ???

        public override void RenderElement(RenderContext context, Action <TagBuilder> onRender = null)
        {
            if (SkipRender(context))
            {
                return;
            }
            var td = new TagBuilder("td");

            MergeAttributes(td, context);

            var colSpanBind = GetBinding(nameof(ColSpan));

            if (colSpanBind != null)
            {
                td.MergeAttribute(":colspan", colSpanBind.GetPath(context));
            }
            else
            {
                td.MergeAttribute("colspan", ColSpan);
            }
            var rowSpanBind = GetBinding(nameof(RowSpan));

            if (rowSpanBind != null)
            {
                td.MergeAttribute(":rowspan", rowSpanBind.GetPath(context));
            }
            else
            {
                td.MergeAttribute("rowspan", RowSpan);
            }

            if (Align != null)
            {
                td.AddCssClass("text-" + Align.ToString().ToLowerInvariant());
            }
            if (VAlign != VerticalAlign.Default)
            {
                td.AddCssClass($"valign-{VAlign.ToString().ToLowerInvariant()}");
            }
            if (GroupIndent && IsInTreeSection)
            {
                td.MergeAttribute(":class", "row.indentCssClass()");
            }
            if (Underline)
            {
                td.AddCssClass("underline");
            }
            td.AddCssClassBoolNo(Bold, "bold");
            td.AddCssClassBoolNo(Italic, "italic");
            if (Vertical)
            {
                td.AddCssClass("vert");
                td.RenderStart(context);
                var div = new TagBuilder("p", "vcell");
                MergeContent(div, context);
                div.RenderStart(context);
                RenderContentVert(context, Content);
                div.RenderEnd(context);
                td.RenderEnd(context);
            }
            else
            {
                MergeContent(td, context);
                td.RenderStart(context);
                RenderContent(context);
                td.RenderEnd(context);
            }
        }
Esempio n. 3
0
 internal override void OnCreateContent(TagBuilder tag)
 {
     tag.AddCssClass("wizard");
 }
Esempio n. 4
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        public override void RenderElement(RenderContext context, Action <TagBuilder> onRender = null)
        {
            if (SkipRender(context))
            {
                return;
            }
            var dataGrid = new TagBuilder("data-grid", null, IsInGrid);

            onRender?.Invoke(dataGrid);
            MergeBindingAttributeBool(dataGrid, context, ":compact", nameof(Compact), Compact);
            MergeAttributes(dataGrid, context, MergeAttrMode.Margin | MergeAttrMode.Visibility);
            dataGrid.MergeAttribute("key", Guid.NewGuid().ToString());             // disable vue reusing
            if (Height != null)
            {
                dataGrid.MergeStyle("height", Height.Value);
            }
            if (FixedHeader)
            {
                dataGrid.MergeAttribute(":fixed-header", "true");
            }
            if (HeadersVisibility == HeadersVisibility.None)
            {
                dataGrid.MergeAttribute(":hide-header", "true");
            }
            if (Style != DataGridStyle.Default)
            {
                dataGrid.AddCssClass($"data-grid-{Style.ToString().ToKebabCase()}");
            }

            if (Background != BackgroundStyle.Default)
            {
                dataGrid.AddCssClass("background-" + Background.ToString().ToKebabCase());
            }

            if (RowDetails != null)
            {
                dataGrid.MergeAttribute(":row-details", "true");
                dataGrid.MergeAttribute("row-details-activate", RowDetails.Activate.ToString().ToLowerInvariant());
                var vBind = RowDetails.GetBinding("Visible");
                if (vBind != null)
                {
                    dataGrid.MergeAttribute("row-details-visible", vBind.Path /*!without context!*/);
                }
            }
            var isb = GetBinding(nameof(ItemsSource));

            if (isb != null)
            {
                dataGrid.MergeAttribute(":items-source", isb.GetPath(context));
            }
            MergeBoolAttributeIfExists(dataGrid, context, nameof(Hover), Hover);
            MergeBoolAttributeIfExists(dataGrid, context, nameof(Striped), Striped);
            MergeBoolAttribute(dataGrid, context, nameof(Border), Border);
            MergeBoolAttribute(dataGrid, context, nameof(Sort), Sort);
            dataGrid.MergeAttribute(":route-query", "$query");             // always!
            if (!String.IsNullOrEmpty(EmptyPanelDelegate))
            {
                dataGrid.MergeAttribute(":empty-panel-callback", $"$delegate('{EmptyPanelDelegate}')");
            }


            var dblClickBind = GetBindingCommand(nameof(DoubleClick));

            if (dblClickBind != null)
            {
                // Function!
                dataGrid.MergeAttribute(":doubleclick", "() => " + dblClickBind.GetCommand(context));
            }

            if (MarkerStyle != RowMarkerStyle.None)
            {
                dataGrid.MergeAttribute("mark-style", MarkerStyle.ToString().ToKebabCase());
            }

            var mbind = GetBinding(nameof(Mark));

            if (mbind != null)
            {
                dataGrid.MergeAttribute("mark", mbind.Path);                 // without context!!!
            }
            else if (Mark != MarkStyle.Default)
            {
                throw new XamlException("The Mark property must be a binding");
            }
            var rbbind = GetBinding(nameof(RowBold));

            if (rbbind != null)
            {
                dataGrid.MergeAttribute("row-bold", rbbind.GetPath(context));
            }
            else if (RowBold != null)
            {
                throw new XamlException("The RowBold property must be a binding");
            }

            // TODO: binding for GridLines ???
            if (GridLines != GridLinesVisibility.None)
            {
                dataGrid.MergeAttribute("grid", GridLines.ToString());
            }

            var groupByBind = GetBinding(nameof(GroupBy));

            if (groupByBind != null)
            {
                dataGrid.MergeAttribute(":group-by", groupByBind.GetPath(context));
            }
            else if (_groupBy != null)
            {
                dataGrid.MergeAttribute(":group-by", _groupBy.GetJsValue(context));
            }

            if (AutoSelect != AutoSelectMode.None)
            {
                dataGrid.MergeAttribute("auto-select", AutoSelect.ToString().ToKebabCase());
            }

            dataGrid.RenderStart(context);
            Int32 colIndex = 0;

            foreach (var col in Columns)
            {
                col.RenderColumn(context, colIndex);
                colIndex++;
            }
            RenderRowDetails(context);
            RenderEmptyPanel(context);
            RenderFooter(context);
            dataGrid.RenderEnd(context);
        }
Esempio n. 5
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        public override void RenderElement(RenderContext context, Action <TagBuilder> onRender = null)
        {
            if (SkipRender(context))
            {
                return;
            }
            TagBuilder page       = null;
            Boolean    isGridPage = (Toolbar != null) || (Taskpad != null) || (Pager != null);

            // render page OR colleciton view

            void addGridAction(TagBuilder tag)
            {
                if (!isGridPage)
                {
                    return;
                }
                tag.AddCssClass("page-grid");
                if (Taskpad != null)
                {
                    if (Taskpad is Taskpad tp && tp.Width != null)
                    {
                        tag.MergeStyle("grid-template-columns", $"1fr {tp.Width.Value}");
                    }
                }
            }

            if (CollectionView != null)
            {
                CollectionView.RenderStart(context, (tag) =>
                {
                    tag.AddCssClass("page").AddCssClass("absolute");
                    addGridAction(tag);
                    AddAttributes(tag);
                    tag.MergeAttribute("id", context.RootId);
                });
            }
            else
            {
                page = new TagBuilder("div", "page absolute");
                page.MergeAttribute("id", context.RootId);
                addGridAction(page);
                AddAttributes(page);
                if (!isGridPage)
                {
                    MergeAttributes(page, context, MergeAttrMode.Margin);
                }

                if (PrintPage != null)
                {
                    page.AddCssClass("print-target");
                    page.AddCssClass(PrintPage.Orientation.ToString().ToLowerInvariant());
                    page.MergeAttribute("v-print-page", PrintPage.ToJson());
                }

                page.RenderStart(context);
            }


            RenderTitle(context);

            if (isGridPage)
            {
                Toolbar?.RenderElement(context, (tag) => tag.AddCssClass("page-toolbar"));
                Taskpad?.RenderElement(context, (tag) => tag.AddCssClass("page-taskpad"));
                Pager?.RenderElement(context, (tag) => tag.AddCssClass("page-pager"));
                var content = new TagBuilder("div", "page-content");
                if (ChildHasWrapper)
                {
                    content.AddCssClass("with-wrapper");
                }
                MergeAttributes(content, context, MergeAttrMode.Margin);
                content.RenderStart(context);
                RenderChildren(context);
                content.RenderEnd(context);
            }
            else
            {
                RenderChildren(context);
            }

            var outer = new TagBuilder("div", "page-canvas-outer").RenderStart(context);

            new TagBuilder("div", "page-canvas").MergeAttribute("id", "page-canvas").Render(context);
            outer.RenderEnd(context);

            if (CollectionView != null)
            {
                CollectionView.RenderEnd(context);
            }
            else
            {
                if (page == null)
                {
                    throw new InvalidProgramException();
                }
                page.RenderEnd(context);
            }
        }
Esempio n. 6
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        void RenderButton(RenderContext context, Boolean hasDropDown, Boolean bDropUp, Action <TagBuilder> onRender)
        {
            var     parentCB   = IsParentCommandBar;
            var     parentTB   = IsParentToolBar;
            Boolean hasCommand = GetBindingCommand(nameof(Command)) != null;
            Boolean insideBar  = IsParentToolBar || IsParentCommandBar;
            var     button     = new TagBuilder("button", "btn", IsInGrid);

            onRender?.Invoke(button);
            if (!Block && !insideBar && !IsInGrid)
            {
                button.AddCssClass("a2-inline");
            }
            if (Parent is Toolbar && Style == ButtonStyle.Default)
            {
                button.AddCssClass("btn-tb");
            }
            else if (IsParentCommandBar)
            {
                button.AddCssClass("btn-cb");
            }
            AddSize(button);
            if (IconAlign == IconAlign.Top)
            {
                button.AddCssClass("icon-top");
            }

            var styleBind = GetBinding(nameof(Style));

            if (styleBind != null)
            {
                button.MergeAttribute(":class", $"'btn-' + {styleBind.GetPathFormat(context)}");
            }
            else if (Style != ButtonStyle.Default)
            {
                button.AddCssClass($"btn-{Style.ToString().ToLowerInvariant()}");
            }
            button.AddCssClassBool(Rounded, "btn-rounded");
            if (hasDropDown && !hasCommand)
            {
                button.MergeAttribute("toggle", String.Empty);
            }
            MergeAttributes(button, context, MergeAttrMode.NoTabIndex & ~MergeAttrMode.Content);             // dinamic

            if (TabIndex != 0)
            {
                button.MergeAttribute("tabindex", TabIndex.ToString());
            }
            if (!HasContent && (Icon != Icon.NoIcon))
            {
                button.AddCssClass("btn-icon");
            }
            MergeDisabled(button, context, nativeControl: true);
            button.MergeAttribute("v-settabindex", String.Empty);
            button.RenderStart(context);
            RenderIcon(context, Icon);

            var contBind = GetBinding(nameof(Content));

            if (contBind != null)
            {
                var cont = new TagBuilder("span");
                cont.MergeAttribute("v-text", contBind.GetPathFormat(context));
                cont.Render(context);
            }

            RenderContent(context);

            if (hasDropDown)
            {
                if (!hasCommand)
                {
                    RenderCaret(context, bDropUp);
                }
            }
            button.RenderEnd(context);
            if (hasDropDown && hasCommand)
            {
                var open = new TagBuilder("button", "btn btn-caret")
                           .MergeAttribute("toggle", String.Empty);
                if (Style != ButtonStyle.Default)
                {
                    open.AddCssClass($"btn-{Style.ToString().ToLowerInvariant()}");
                }
                MergeVisibilityAttribures(open, context);                 // Visible only
                AddSize(open);
                open.RenderStart(context);
                RenderCaret(context, bDropUp);
                open.RenderEnd(context);
            }
        }
Esempio n. 7
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        public override void RenderElement(RenderContext context, Action <TagBuilder> onRender = null)
        {
            if (CheckDisabledModel(context))
            {
                return;
            }
            var input = new TagBuilder("a2-selector", null, IsInGrid);

            onRender?.Invoke(input);
            if (!String.IsNullOrEmpty(Delegate))
            {
                input.MergeAttribute(":fetch", $"$delegate('{Delegate}')");
            }
            if (!String.IsNullOrEmpty(SetDelegate))
            {
                input.MergeAttribute(":hitfunc", $"$delegate('{SetDelegate}')");
            }
            input.MergeAttribute("display", DisplayProperty);
            if (PanelPlacement != DropDownPlacement.BottomLeft)
            {
                input.MergeAttribute("placement", PanelPlacement.ToString().ToKebabCase());
            }
            if (Style != SelectorStyle.Default)
            {
                input.MergeAttribute("mode", Style.ToString().ToKebabCase());
            }
            if (Size != ControlSize.Default)
            {
                input.AddCssClass($"sel-{Size.ToString().ToLowerInvariant()}");
            }
            if (ListSize != null)
            {
                if (!ListSize.Width.IsEmpty)
                {
                    input.MergeAttribute("list-width", ListSize.Width.ToString());
                }
                if (!ListSize.Height.IsEmpty)
                {
                    input.MergeAttribute("list-height", ListSize.Height.ToString());
                }
            }
            if (ShowCaret.HasValue && ShowCaret.Value)
            {
                input.MergeAttribute(":caret", "true");
            }
            if (ShowClear)
            {
                input.MergeAttribute(":has-clear", "true");
            }

            var isBind = GetBinding(nameof(ItemsSource));

            if (isBind != null)
            {
                input.MergeAttribute(":items-source", isBind.GetPath(context));
            }

            MergeAttributes(input, context);
            MergeDisabled(input, context);
            MergeAlign(input, context, Align);
            MergeBindingAttributeString(input, context, "placeholder", nameof(Placeholder), Placeholder);
            MergeValue(input, context);
            MergeCustomValueItemProp(input, context, nameof(TextValue), "text");
            MergeCreateNew(input, context);

            input.RenderStart(context);
            RenderAddOns(context);
            //RenderNewPane(context);
            RenderPaneTemplate(context);
            input.RenderEnd(context);
        }
Esempio n. 8
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        void RenderCell(TagBuilder td, RenderContext context)
        {
            MergeAttributes(td, context);

            var boldBind   = GetBinding(nameof(Bold));
            var italicBind = GetBinding(nameof(Italic));

            if (boldBind != null || italicBind != null)
            {
                var sb = new StringBuilder("{");
                if (boldBind != null)
                {
                    sb.Append($"bold: {boldBind.GetPath(context)}, ");
                }
                if (italicBind != null)
                {
                    sb.Append($"italic: {italicBind.GetPath(context)}, ");
                }
                sb.RemoveTailComma();
                sb.Append("}");
                td.MergeAttribute(":class", sb.ToString());
            }
            td.AddCssClassBoolNo(Bold, "bold");
            td.AddCssClassBoolNo(Italic, "italic");
            td.AddCssClassBool(Gray, "gray");


            if (Align != TextAlign.Left)
            {
                td.AddCssClass("text-" + Align.ToString().ToLowerInvariant());
            }

            if (VAlign != VerticalAlign.Default)
            {
                td.AddCssClass($"valign-{VAlign.ToString().ToLowerInvariant()}");
            }

            if (Content is ITableControl)
            {
                td.AddCssClass("ctrl");
            }

            MergeContent(td, context);

            var colSpanBind = GetBinding(nameof(ColSpan));

            if (colSpanBind != null)
            {
                td.MergeAttribute(":colspan", colSpanBind.GetPath(context));
            }
            else
            {
                MergeAttributeInt32(td, context, nameof(ColSpan), "colspan", ColSpan);
            }
            var rowSpanBind = GetBinding(nameof(RowSpan));

            if (rowSpanBind != null)
            {
                td.MergeAttribute(":rowspan", rowSpanBind.GetPath(context));
            }
            else
            {
                MergeAttributeInt32(td, context, nameof(RowSpan), "rowspan", RowSpan);
            }

            td.RenderStart(context);
            RenderContent(context);

            /*
             * no use, the content in the attribute
             * if (Validate)
             * {
             * var val = new TagBuilder("validator-control");
             * val.MergeAttribute(":item", "row");
             * val.MergeAttribute("prop", "Sum");
             * val.Render(context);
             * }*/
            td.RenderEnd(context);
        }
Esempio n. 9
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        public override void RenderElement(RenderContext context, Action <TagBuilder> onRender = null)
        {
            if (CheckDisabledModel(context))
            {
                return;
            }
            var combo = new TagBuilder("select", null, IsInGrid);

            onRender?.Invoke(combo);
            combo.MergeAttribute("is", "combobox");
            combo.MergeAttribute("v-cloak", String.Empty);
            combo.MergeAttribute("display", DisplayProperty);
            if (Style != ComboBoxStyle.Default)
            {
                combo.AddCssClass($"combo-{Style.ToString().ToLowerInvariant()}");
            }
            MergeAttributes(combo, context);
            MergeAlign(combo, context, Align);
            MergeBoolAttribute(combo, context, nameof(ShowValue), ShowValue);
            SetSize(combo, nameof(ComboBox));
            MergeDisabled(combo, context);
            var isBind = GetBinding(nameof(ItemsSource));

            if (isBind != null)
            {
                combo.MergeAttribute(":items-source", isBind.GetPath(context));
                if (_children != null)
                {
                    if (Children.Count != 1)
                    {
                        throw new XamlException("The ComboBox with the specified ItemsSource must have only one ComboBoxItem element");
                    }
                    var elem     = Children[0];
                    var contBind = elem.GetBinding("Content");
                    if (contBind == null)
                    {
                        throw new XamlException("ComboBoxItem. Content binging must be specified");
                    }
                    combo.MergeAttribute(":name-prop", $"'{contBind.Path}'");                     /*without context!*/
                    var valBind = elem.GetBinding("Value");
                    if (valBind == null)
                    {
                        throw new XamlException("ComboBoxItem. Value binging must be specified");
                    }
                    combo.MergeAttribute(":value-prop", $"'{valBind.Path}'");                      /*without context!*/
                }
            }
            MergeValue(combo, context);
            combo.RenderStart(context);
            if (_children != null && isBind == null)
            {
                foreach (var ch in Children)
                {
                    ch.RenderElement(context);
                }
            }
            RenderPopover(context);
            RenderHint(context);
            RenderLink(context);
            combo.RenderEnd(context);
        }
Esempio n. 10
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        public override void RenderElement(RenderContext context, Action <TagBuilder> onRender = null)
        {
            var dialog = new TagBuilder("div", "modal");

            dialog.MergeAttribute("id", context.RootId);
            dialog.MergeAttribute("v-cloak", String.Empty);
            dialog.AddCssClassBoolNo(UserSelect, "user-select");
            dialog.MergeAttribute("data-controller-attr", GetControllerAttributes());
            dialog.AddCssClassBool(Maximize, "maximize");
            dialog.AddCssClassBool(ButtonOnTop, "button-on-top");

            if (!String.IsNullOrEmpty(TestId) && context.IsDebugConfiguration)
            {
                dialog.MergeAttribute("test-id", TestId);
            }


            if (Maximize)
            {
                dialog.MergeAttribute("v-maximize", "true");
            }
            else
            {
                SetSize(dialog);
            }

            dialog.RenderStart(context);

            if (ShowWaitCursor)
            {
                new TagBuilder("wait-cursor", "dialog")
                .MergeAttribute(":ready", "$data.$ready")
                .Render(context, TagRenderMode.Normal);
            }


            RenderHeader(context);
            RenderLoadIndicator(context);


            var content = new TagBuilder("div", "modal-content");

            OnCreateContent(content);
            if (Height != null)
            {
                content.MergeStyle("min-height", Height.Value);
            }
            if (Padding != null)
            {
                Padding.MergeStyles("padding", content);
            }
            content.AddCssClassBool(IsContentIsIFrame, "content-iframe");             // bug fix (3px height)
            if (Background != BackgroundStyle.Default)
            {
                content.AddCssClass("background-" + Background.ToString().ToKebabCase());
            }
            content.AddCssClassBool(Overflow, "overflow");
            content.RenderStart(context);
            if (Taskpad != null)
            {
                var grid = new TagBuilder("div", "dialog-grid");
                if (Taskpad is Taskpad tp && tp.Width != null)
                {
                    grid.MergeStyle("grid-template-columns", $"1fr {tp.Width.Value}");
                }
                grid.RenderStart(context);
                var gridContent = new TagBuilder("div", "dialog-grid-content");
                gridContent.RenderStart(context);
                RenderChildren(context);
                gridContent.RenderEnd(context);
                Taskpad.RenderElement(context);
                grid.RenderEnd(context);
            }
            else
            {
                RenderChildren(context);
            }

            content.RenderEnd(context);

            RenderFooter(context);
            RenderAccelCommands(context);

            dialog.RenderEnd(context);
        }
Esempio n. 11
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        public override void RenderElement(RenderContext context, Action <TagBuilder> onRender = null)
        {
            /* TODO:
             * 1. Horizontal splitter
             */
            if (SkipRender(context))
            {
                return;
            }
            var spl = new TagBuilder("div", "splitter");

            onRender?.Invoke(spl);
            spl.MergeAttribute("key", Guid.NewGuid().ToString());             // disable vue reusing
            MergeAttributes(spl, context);
            if (Height != null)
            {
                spl.MergeStyle("height", Height.Value);
            }
            if (MinWidth != null)
            {
                spl.MergeStyle("min-width", MinWidth.Value);
            }
            spl.AddCssClass(Orientation.ToString().ToLowerInvariant());
            // width
            GridLength p1w = GetWidth(Children[0]) ?? GridLength.Fr1();
            GridLength p2w = GetWidth(Children[1]) ?? GridLength.Fr1();

            String rowsCols = Orientation == Orientation.Vertical ? "grid-template-columns" : "grid-template-rows";

            spl.MergeStyle(rowsCols, $"{p1w} 5px {p2w}");

            spl.RenderStart(context);

            // first part
            var p1 = new TagBuilder("div", "spl-part spl-first");

            p1.RenderStart(context);
            Children[0].RenderElement(context);
            p1.RenderEnd(context);

            new TagBuilder("div", "spl-handle")
            .MergeAttribute(Orientation == Orientation.Vertical ? "v-resize" : "h-resize", String.Empty)
            //.MergeAttribute("key", Guid.NewGuid().ToString()) // disable vue reusing
            .MergeAttribute("first-pane-width", p1w?.Value.ToString())
            .MergeAttribute("data-min-width", GetMinWidth(Children[0])?.Value.ToString())
            .MergeAttribute("second-min-width", GetMinWidth(Children[1])?.Value.ToString())
            .Render(context);

            // second part
            var p2 = new TagBuilder("div", "spl-part spl-second");

            p2.RenderStart(context);
            Children[1].RenderElement(context);
            p2.RenderEnd(context);

            // drag-handle
            new TagBuilder("div", "drag-handle")
            .Render(context);

            spl.RenderEnd(context);
        }