<html><head><metahttp-equiv="X-UA-Compatible"content="IE=edge"/><linkrel="shortcut icon"href="../icons/favicon.ico"/><linkrel="stylesheet"type="text/css"href="../styles/branding.css"/><linkrel="stylesheet"type="text/css"href="../styles/branding-en-US.css"/><scripttype="text/javascript"src="../scripts/branding.js"></script><metahttp-equiv="Content-Type"content="text/html; charset=UTF-8"/><title>PropertyChangedAlerter.PropertyChanged Event</title><metaname="Language"content="en-us"/><metaname="System.Keywords"content="PropertyChanged event"/><metaname="System.Keywords"content="PropertyChangedAlerter.PropertyChanged event"/><metaname="Microsoft.Help.F1"content="butterflow_ui.PropertyChangedAlerter.PropertyChanged"/><metaname="Microsoft.Help.Id"content="E:butterflow_ui.PropertyChangedAlerter.PropertyChanged"/><metaname="Description"content="Occurs when a property value changes."/><metaname="Microsoft.Help.ContentType"content="Reference"/><metaname="BrandingAware"content="true"/><metaname="container"content="butterflow_ui"/><metaname="file"content="2bc00061-8840-fad4-50b6-7b7fad95336c"/><metaname="guid"content="2bc00061-8840-fad4-50b6-7b7fad95336c"/><linkrel="stylesheet"type="text/css"href="../styles/branding-Website.css"/><scripttype="text/javascript"src="../scripts/jquery-1.11.0.min.js"></script><scripttype="text/javascript"src="../scripts/branding-Website.js"></script><scripttype="text/javascript"src="../scripts/clipboard.min.js"></script></head><bodyonload="OnLoad('cs')"><inputtype="hidden"id="userDataCache"class="userDataStyle"/><divclass="pageHeader"id="PageHeader">A Sandcastle Documented Class Library<formid="SearchForm"method="get"action="#"onsubmit="javascript:TransferToSearchPage(); return false;"><inputid="SearchTextBox"type="text"maxlength="200"/><buttonid="SearchButton"type="submit"></button></form></div><divclass="pageBody"><divclass="leftNav"id="leftNav"><divid="tocNav"><divclass="toclevel0"data-toclevel="0"><aclass="tocCollapsed"onclick="javascript: Toggle(this);"href="#!"/><adata-tochassubtree="true"href="../html\e151fc72-f3cc-1740-7ea1-73c21ce1fa93.htm"title="A Sandcastle Documented Class Library"tocid="roottoc">A Sandcastle Documented Class Library</a></div><divclass="toclevel0"data-toclevel="0"><aclass="tocCollapsed"onclick="javascript: Toggle(this);"href="#!"/><adata-tochassubtree="true"href="../html/e151fc72-f3cc-1740-7ea1-73c21ce1fa93.htm"title="butterflow_ui"tocid="e151fc72-f3cc-1740-7ea1-73c21ce1fa93">butterflow_ui</a></div><divclass="toclevel0"data-toclevel="0"><aclass="tocCollapsed"onclick="javascript: Toggle(this);"href="#!"/><adata-tochassubtree="true"href="../html/229e6869-f14d-a176-5ac6-d0d28dc43a71.htm"title="PropertyChangedAlerter Class"tocid="229e6869-f14d-a176-5ac6-d0d28dc43a71">PropertyChangedAlerter Class</a></div><divclass="toclevel1"data-toclevel="1"data-childrenloaded="true"><aclass="tocExpanded"onclick="javascript: Toggle(this);"href="#!"/><adata-tochassubtree="true"href="../html/90401cff-257b-db0c-848a-5900e476f5c1.htm"title="PropertyChangedAlerter Events"tocid="90401cff-257b-db0c-848a-5900e476f5c1">PropertyChangedAlerter Events</a></div><divclass="toclevel2 current"data-toclevel="2"><adata-tochassubtree="false"href="../html/2bc00061-8840-fad4-50b6-7b7fad95336c.htm"title="PropertyChanged Event"tocid="2bc00061-8840-fad4-50b6-7b7fad95336c">PropertyChanged Event</a></div></div><divid="tocResizableEW"onmousedown="OnMouseDown(event);"></div><divid="TocResize"class="tocResize"><imgid="ResizeImageIncrease"src="../icons/TocOpen.gif"onclick="OnIncreaseToc()"alt="Click or drag to resize"title="Click or drag to resize"/><imgid="ResizeImageReset"src="../icons/TocClose.gif"style="display:none"onclick="OnResetToc()"alt="Click or drag to resize"title="Click or drag to resize"/></div></div><divclass="topicContent"id="TopicContent"><tableclass="titleTable"><tr><tdclass="titleColumn"><h1>PropertyChangedAlerter<spanid="LST6730C633_0"></span><script