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_spPageContextInfo javascript variable in sharepoint

By Ashok Nalam on 28 Mar 2013 | Category: Silverlight | Tagged: list javascript properties 
_spPageContextInfo variable provides few properties which will be useful in JavaScript and client object model code.
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Introduction

_spPageContextInfo is a  JavaScript context variable, which will rendered for each SharePoint page. _spPageContextInfo holds few proprieties which will be useful in JavaScript and client object model code. If you want to know the properties of _spPageContextInfo, go to view page source and find text with "_spPageContextInfo".

When It will be useful:

  • When we are making any ajax calls, we might need the server URL dynamically. In this case we can use _spPageContextInfo.siteAbsoluteUrl property. 
  • If you want to know the current SharePoint List GUID, use _spPageContextInfo.pageListId.
  • Even it has more properties also(which are self explanatory). We can use them according to the requirements.

Sample Code:

	if (_spPageContextInfo != null) {
            if (_spPageContextInfo.pageListId != null) {
                var pageListId = _spPageContextInfo.pageListId;
            }
            if (_spPageContextInfo.siteAbsoluteUrl && _spPageContextInfo.siteAbsoluteUrl != '') {
               var siteAbsoluteUrl = _spPageContextInfo.siteAbsoluteUrl
            }
        }
$.ajax({
            type: "GET",
            url: siteAbsoluteUrl + "/_layouts/15/Test.aspx?listid=" + pageListId + "",
            data: "",
            contentType: "application/json; charset=utf-8",
            dataType: "json",
            success: function (data) {                
                    alert('success');
            },
            error: function () {
                alert('failed ');

            }
        });

_spPageContextInfo Object Properties found for SharePoint 2013 application:

  • alertsEnabled: false
  • allowSilverlightPrompt :"True"
  • clientServerTimeDelta :-8980
  • crossDomainPhotosEnabled: false
  • currentCultureName: "en-US"
  • currentLanguage: 1033
  • currentUICultureName: "en-US"
  • layoutsUrl: "_layouts/15"
  • pageListId:  "{df5e2d45-ad0b-4608-a813-ded6a97511db}"
  • pagePersonalizationScope:  1
  • serverRequestPath:  "/sites/dotnetmirror/Lists/Calender custom/calendar.aspx"
  • siteAbsoluteUrl: "http://computerName:5000/sites/dotnetmirror"
  • siteClientTag: "0$$15.0.4433.1506"
  • siteServerRelativeUrl; "/sites/dotnetmirror"
  • systemUserKey: "i:0).w|s-1-5-21-2086049...90378103-3194450012-500"
  • tenantAppVersion: "0"
  • userId: 1
  • webAbsoluteUrl: "http://computerName:5000/sites/dotnetmirror"
  • webLanguage: 1033
  • webLogoUrl:"_layouts/15/images/siteicon.png"
  • webPermMasks: Object { High=2147483647, Low=4294967295}
  • webServerRelativeUrl: "/sites/dotnetmirror"
  • webTemplate: "1"
  • webTitle : "dotnetmirror"
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