Salesforce

Using the Enter Keypress Event in Visualforce to Search or Change Checkbox Properties

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Perform common actions like run a search or check a checkbox when the enter key is pressed, instead of form submission. The example below shows how to do this with help from jQuery in the Visualforce page.

Things to notice:

  • jQuery.noConflict() prevents conflicts with other javascript that Salesforce may have loaded.
  • j$(document).ready will run the contained JavaScript after the components are loaded on the page. Binding event handling to elements could be missed without this.
  • event.keyCode == 13 is the key code for the Enter button.
  • CSS classes are used to attach the keypress event handling, but you could also specify element types, names, or any other valid selector logic.
  • searchFilter CSS class could be used on text, drop down/picklists, checkboxes, etc.
  • .trigger(‘click’) is used below. It is similar to .click(), and they are interchangeable for this example. The difference that I’m aware of is .trigger(‘click’) can accept additional parameters.
  • Probably only one or two of the methods below would be used in a real project. Multiple options are documented to illustrate different options.

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Javascript Popup Window Tips for Salesforce

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Check if a Popup Blocker Prevented the Popup Window Most browsers will block popup windows the first time a popup window tries to appear. Here is how to check if a popup window was blocked. var win = window.open(“/apex/PopupWindowVfPage”, “MyWinName”, “height=500,width=500”); // set the focus new window win.focus(); // assign the methods focusPopup to the … Read more

Remove Last Comma or Other Characters from the End of a String

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Apex Removing the last comma is often needed when dynamically building a SOQL Select string. Salesforce quietly released a bunch of new string methods in Winter ’13 that I have started to really appreciate. One of the new methods is removeEnd() and removeEndIngoreCase(). These are great for removing that last comma. String soql = ‘Select … Read more

HTML Line Breaks in Visualforce using Escape=false with Encoding

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Using a Visualforce tag with the escape=off option may help send an html tag like a line break to the page. However, escape=off can open cross-site scripting vulnerabilities. Visualforce encoding functions HTMLENCODE, JSENCODE, JSINHTMLENCODE, and URLENCODE help avoid the vulnerabilities, but they also prevent \n new line characters and html tags from showing on the … Read more