The tabcontrol is not visible on IE8.
This issue had been reported many times but still isn't fixed.
This issue was introduced after version 3.5.50731.0, in that one the tabs are visible.
From version 3.5.60919.0 it doesn't.
The latest version we tried is 3.5.7.1213.
Comments: Webpage error details User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C) Timestamp: Mon, 14 Apr 2014 06:49:10 UTC Message: Object doesn't support this property or method Line: 2 Char: 405 Code: 0 URI: http://csgswt001.csgtst.circlesoftware.nl:90/KCS_sysmngweb/ScriptResource.axd?d=uHZfOgdUP18JYrtk3LM5Fc6ik-2uPRY4DUlmVULLjh6DRzRUZUzE-EWChmX04gaplJ8esMtycpGjsa9nJDxrLpaywLIQBsRT68V0rU4yBqXLIo2aOb4bfNsZ53YjZzk46nZlKQ2&t=ffffffffc72e05cf ** Contents of the scriptresource ** // (c) 2010 CodePlex Foundation (function(n,t){$act.createWidget("tabPanel",t.Widget,{options:{enabled:!0,scrollBars:"None",dynamicServicePath:null,dynamicServiceMethod:null,dynamicContextKey:null,onDemandMode:"Always",updatePanelID:null,wasLoadedOnce:!1,owner:null},_events:["click","populating","populated"],_create:function(){var n=this,i=n.options,r=n.element.attr("id");n._active=!1;n._tab=t("#"+r+"_tab");n._header=t("#__tab_"+r);n._tabIndex=i.owner.get_tabs().length;i.enabled?n._addHandlersOnEnabled():n._makeEnabled(!1);i.onClientClick&&n.add_click(i.onClientClick)},_setOption:function(n,t){var i=this;switch(n){case"enabled":i._makeEnabled(t);break;case"disabled":i._makeEnabled(!t);break;case"headerText":i._header.text(t)}i._superApply(arguments)},_set_active:function(n){this._active=n;n?this._activate():this._deactivate()},_activate:function(){var n=this,u=n.options,i=u.owner,f,r;u.enabled?(f=t(n.element),f.css({visibility:"visible",display:""}),n._tab.addClass("ajax__tab_active"),n.populate(),n._header.focus()):n._active&&(r=i.getNearestTab(!1),!r||i.set_activeTab(r));i.show()},_deactivate:function(){var n=this,i=t(n.element);i.css({visibility:"hidden",display:"none"});n._tab.removeClass("ajax__tab_active")},_makeEnabled:function(n){var t=this,r=t.options.owner,i;n?(t._addHandlersOnEnabled(),t._header.removeClass("ajax__tab_disabled")):(t._removeHandlersOnEnabled(),t._active&&(i=r.getNearestTab(!1),!i||r.set_activeTab(i)),t._deactivate(),t._header.addClass("ajax__tab_disabled"))},_addHandlersOnEnabled:function(){var n=this;n._header.on("click",function(t){n._headerOnClick.call(n,t)}).on("mouseover",function(t){n._headerOnMouseOver.call(n,t)}).on("mouseout",function(t){n._headerOnMouseOut.call(n,t)}).on("keydown",function(t){n._headerOnKeyDown.call(n,t)})},_removeHandlersOnEnabled:function(){this._header.off("click").off("mouseover").off("mouseout").off("keydown").on("click",function(n){n.preventDefault()})},_headerOnClick:function(n){n.preventDefault();this.options.owner.set_activeTab(this);this.raiseClick(this);this._header.focus()},_headerOnMouseOver:function(){this._tab.addClass("ajax__tab_hover")},_headerOnMouseOut:function(){this._tab.removeClass("ajax__tab_hover")},_headerOnKeyDown:function(n){var s=this,i="which"in n?n.which:n.keyCode,t=s.options.owner,r=t.options.useVerticalStripPlacement,u,f,e,o;i=="39"&&!r||i=="40"&&r?(n.preventDefault(),u=t.getNextTab(!1),u&&t.set_activeTab(u)):i=="37"&&!r||i=="38"&&r?(n.preventDefault(),f=t.getPreviousTab(!1),f&&t.set_activeTab(f)):i=="35"?(n.preventDefault(),e=t.getLastTab(!1),e&&t.set_activeTab(e)):i=="36"&&(n.preventDefault(),o=t.getFirstTab(!1),o&&t.set_activeTab(o))},populate:function(n){var t=this,i=t.options;!t._dynamicPopulateBehavior&&i.dynamicServiceMethod&&(t._dynamicPopulateBehavior=$act.common.activateWidget("dynamicPopulateExtender",t.element,{id:t.element.attr("id")+"_DynamicPopulateBehavior",contextKey:i.dynamicContextKey,serviceMethod:i.dynamicServiceMethod,servicePath:i.dynamicServicePath}),t._dynamicPopulateBehavior.add_populating(function(){t.raisePopulating(this)}),t._dynamicPopulateBehavior.add_populated(function(){t.raisePopulated(this)}));t._dynamicPopulateBehavior&&t._dynamicPopulateBehavior.populate(n?n:i.dynamicContextKey)}},!0)})(window,actJQuery); if(typeof(Sys)!=='undefined')Sys.Application.notifyScriptLoaded();
This issue had been reported many times but still isn't fixed.
This issue was introduced after version 3.5.50731.0, in that one the tabs are visible.
From version 3.5.60919.0 it doesn't.
The latest version we tried is 3.5.7.1213.
Comments: Webpage error details User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C) Timestamp: Mon, 14 Apr 2014 06:49:10 UTC Message: Object doesn't support this property or method Line: 2 Char: 405 Code: 0 URI: http://csgswt001.csgtst.circlesoftware.nl:90/KCS_sysmngweb/ScriptResource.axd?d=uHZfOgdUP18JYrtk3LM5Fc6ik-2uPRY4DUlmVULLjh6DRzRUZUzE-EWChmX04gaplJ8esMtycpGjsa9nJDxrLpaywLIQBsRT68V0rU4yBqXLIo2aOb4bfNsZ53YjZzk46nZlKQ2&t=ffffffffc72e05cf ** Contents of the scriptresource ** // (c) 2010 CodePlex Foundation (function(n,t){$act.createWidget("tabPanel",t.Widget,{options:{enabled:!0,scrollBars:"None",dynamicServicePath:null,dynamicServiceMethod:null,dynamicContextKey:null,onDemandMode:"Always",updatePanelID:null,wasLoadedOnce:!1,owner:null},_events:["click","populating","populated"],_create:function(){var n=this,i=n.options,r=n.element.attr("id");n._active=!1;n._tab=t("#"+r+"_tab");n._header=t("#__tab_"+r);n._tabIndex=i.owner.get_tabs().length;i.enabled?n._addHandlersOnEnabled():n._makeEnabled(!1);i.onClientClick&&n.add_click(i.onClientClick)},_setOption:function(n,t){var i=this;switch(n){case"enabled":i._makeEnabled(t);break;case"disabled":i._makeEnabled(!t);break;case"headerText":i._header.text(t)}i._superApply(arguments)},_set_active:function(n){this._active=n;n?this._activate():this._deactivate()},_activate:function(){var n=this,u=n.options,i=u.owner,f,r;u.enabled?(f=t(n.element),f.css({visibility:"visible",display:""}),n._tab.addClass("ajax__tab_active"),n.populate(),n._header.focus()):n._active&&(r=i.getNearestTab(!1),!r||i.set_activeTab(r));i.show()},_deactivate:function(){var n=this,i=t(n.element);i.css({visibility:"hidden",display:"none"});n._tab.removeClass("ajax__tab_active")},_makeEnabled:function(n){var t=this,r=t.options.owner,i;n?(t._addHandlersOnEnabled(),t._header.removeClass("ajax__tab_disabled")):(t._removeHandlersOnEnabled(),t._active&&(i=r.getNearestTab(!1),!i||r.set_activeTab(i)),t._deactivate(),t._header.addClass("ajax__tab_disabled"))},_addHandlersOnEnabled:function(){var n=this;n._header.on("click",function(t){n._headerOnClick.call(n,t)}).on("mouseover",function(t){n._headerOnMouseOver.call(n,t)}).on("mouseout",function(t){n._headerOnMouseOut.call(n,t)}).on("keydown",function(t){n._headerOnKeyDown.call(n,t)})},_removeHandlersOnEnabled:function(){this._header.off("click").off("mouseover").off("mouseout").off("keydown").on("click",function(n){n.preventDefault()})},_headerOnClick:function(n){n.preventDefault();this.options.owner.set_activeTab(this);this.raiseClick(this);this._header.focus()},_headerOnMouseOver:function(){this._tab.addClass("ajax__tab_hover")},_headerOnMouseOut:function(){this._tab.removeClass("ajax__tab_hover")},_headerOnKeyDown:function(n){var s=this,i="which"in n?n.which:n.keyCode,t=s.options.owner,r=t.options.useVerticalStripPlacement,u,f,e,o;i=="39"&&!r||i=="40"&&r?(n.preventDefault(),u=t.getNextTab(!1),u&&t.set_activeTab(u)):i=="37"&&!r||i=="38"&&r?(n.preventDefault(),f=t.getPreviousTab(!1),f&&t.set_activeTab(f)):i=="35"?(n.preventDefault(),e=t.getLastTab(!1),e&&t.set_activeTab(e)):i=="36"&&(n.preventDefault(),o=t.getFirstTab(!1),o&&t.set_activeTab(o))},populate:function(n){var t=this,i=t.options;!t._dynamicPopulateBehavior&&i.dynamicServiceMethod&&(t._dynamicPopulateBehavior=$act.common.activateWidget("dynamicPopulateExtender",t.element,{id:t.element.attr("id")+"_DynamicPopulateBehavior",contextKey:i.dynamicContextKey,serviceMethod:i.dynamicServiceMethod,servicePath:i.dynamicServicePath}),t._dynamicPopulateBehavior.add_populating(function(){t.raisePopulating(this)}),t._dynamicPopulateBehavior.add_populated(function(){t.raisePopulated(this)}));t._dynamicPopulateBehavior&&t._dynamicPopulateBehavior.populate(n?n:i.dynamicContextKey)}},!0)})(window,actJQuery); if(typeof(Sys)!=='undefined')Sys.Application.notifyScriptLoaded();