IntroductionIn this article you will see how to get the field type in SharePoint 2010 using ECMAScript. I have a list named "List Request" which has the following fields (Navigate to the list, click on List tab in the ribbon interface. Click on List Settings button).I am going to find the field type for the column named "Choice" using ECMAScript.Steps InvolvedStep 1 : Navigate to the SharePoint site (I have a site page created in my site where I am going to add the content editor web part).Step 2 : Go to Site Actions, click on Edit Page.Step 3 : Click on Insert tab in the ribbon interface and then click on Web Part button.Step 4 : Select Media and Content in the Categories section and then click on Content Editor.Step 5 : Click on Add.Step 6 : The Content Editor web part will be added to the site page.Step 7 : Click on the down arrow and then click on Edit Web Part.Step 8 : Click on "Click here to add new content".Step 9 : Click on Format Text tab in the ribbon interface and then click on HTML drop down.Step 10 : Click on Edit HTML source.Step 11 : HTML source window will pop up.Step 12 : Copy and paste the following script.<script language="ecmascript" type="text/ecmascript"> var fieldCollection; var field; var list; function getFieldType() { var clientContext = SP.ClientContext.get_current(); if (clientContext != undefined && clientContext != null) { var webSite = clientContext.get_web(); this.list = webSite.get_lists().getByTitle("List Request"); this.fieldCollection = list.get_fields(); this.field = fieldCollection.getByTitle("Choice"); clientContext.load(this.field); clientContext.executeQueryAsync(Function.createDelegate(this, this.OnLoadSuccess),Function.createDelegate(this, this.OnLoadFailed)); } } function OnLoadSuccess(sender, args) { alert(field.get_typeAsString()); } function OnLoadFailed(sender, args) { alert('Request failed. ' + args.get_message() + '\n' + args.get_stackTrace()); }</script> <input id="btnGetFieldType" onclick="getFieldType()" type="button" value="Get Field Type" />Step 13 : Click on Ok.Step 14 : In the ribbon interface click on Save & Close button.Step 15 : In the content editor web part you could find a button named "Get Field type", click on that button.Steps 16 : An alert will pop up which displays the field type.ReferenceSP.Field.get_typeAsString() Property - http://msdn.microsoft.com/en-us/library/ee553500.aspxSummaryThus in this article you have seen how to get the field type in SharePoint 2010 using ECMAScript.
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