EDIT: it might also be interesting to look at Intersection Observer that is now available in several browsers, and there is also a polyfill. I have this specific need that is to trigger an event when an element becomes visible/invisible into a scrollable area. Here is the code I came to: /** * Create the […]

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Below is the code that is handy when you want to execute several Promise actions in sequence: function PromiseChain(arr, fct) { var dfd = Promise.resolve(); var res = arr.map(function(item,idx) { dfd = dfd.then(function() { return fct(item,idx) }); return dfd }); return Promise.all(res) } // for short version: // function PromiseChain(n,r){var e=Promise.resolve(),i=n.map(function(n,i){return e=e.then(function(){return r(n,i)})});return Promise.all(i)} And […]

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We can find many discussions and solutions about this issue. In my case the one that worked is this code. Below you’ll find a compressed version of the extend() function (with a fix): function extend(){var r,t,n,o,e=arguments[0]||{},f=1,i=arguments.length,u=!1,y=function(r){if(null===r|| »object »!=typeof r||r.nodeType||null!==r&&r===r.window)return!1;try{if(r.constructor&&!this.hasOwnProperty.call(r.constructor.prototype, »isPrototypeOf »))return!1}catch(t){return!1}return!0};for(« boolean »==typeof e&&(u=e,e=arguments[f]||{},f++), »object »!=typeof e&& »function »!=typeof e&&(e={}),!1;i>f;f+=1)if(null!==(r=arguments[f]))for(t in r)e!==r[t]&& »undefined »==typeof e[t]&&(u&&r[t]&&(y(r[t])||(n=Array.isArray(r[t])))?(n?(n=!1,o=e[t]&&Array.isArray(e[t])?e[t]:[]):o=e[t]&&y(e[t])?e[t]:{},e[t]=extend(u,o,r[t])):void 0!==r[t]&&(e[t]=r[t]));return e} And here an example: var object_a = { value_1: ‘a’, […]

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In some cases you could get this kind of hexadecimal numbers from Sharepoint for the PermMask: 0xb008431061, or 0x1b03c4313ff, and so on. To verify the PermMask against the different level of permissions you can proceed with the below method (using functions from core.js): var permMask = ‘0x1b03c4313ff’; var permissions = new SP.BasePermissions(); permissions.initPropertiesFromJson({High:GetPermMaskH(permMask), Low:GetPermMaskL(permMask)}); // […]

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Sharepoint encodes the URLs with unicode, so we’ll see many \u002f to represent /. If you want to decode those unicode strings, you can use this short code: unescape(JSON.parse(‘ »‘ + s.replace(‘ »‘, ‘\\ »‘) + ‘ »‘))

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When I open a dialog for an EditFrom and use the « Delete Item » button from the ribbon, then the main page is redirected to the related Sharepoint list. This behavior is very bad for the user experience. To change it I used the below Javascript code: // replace the Delete Item default action when into […]

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With Sharepoint 2010, when you use Internet Explorer you can open an Office document in readonly or in edit mode. Also, when trying to open an Excel file in Firefox/Chrome it will probably open the ugly xslviewer and won’t let you deal with your file. After searching a bit about it, I found a clue […]

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Let’s say you want to do an asynchronous request just before saving a Sharepoint form, but after Sharepoint verified all the fields in your form (for mandatory ones, or for format, …). Here is my solution to do it (using jQuery.Deferred): // this function will do our asynchronous check function beforeSaving() { var deferred=jQuery.Deferred(); setTimeout(function() […]

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I needed to communicate with an iframe on Sharepoint, however Sharepoint returned Load denied by X-Frame-Options … To override this limitation you have to create a Webpart page where you’ll add the code <WebPartPages:AllowFraming runat= »server » /> into the <asp:Content> section (that might work somewhere else, but I did this way). You can also add it […]

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EDIT 22/Dec/2016: there is s a new version of this article at https://blog.kodono.info/wordpress/2016/12/22/2-bypass-a-lookup-field-not-displayed-because-of-threshold-on-newform-and-editform-sharepoint-2013/ Sharepoint is really annoying to limit the access to the list with more than 5,000 items… It causes many troubles, and one of them is when you use a lookup field into a form that is tied to a big list. Sharepoint […]

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