Following is the schemaXml of a Rss WebPart. SchemaXml is essential to add a WebPart to a SharePoint WebPage. It contains the settings of a given WebPart. Following I have highlighted the FeedUrl property of this WebPart. This blog has been posted in conjunction with the blog, https://realmpksharepoint.wordpress.com/2014/04/10/add-a-new-webpart-to-a-sharepoint-site-using-client-object-model-c/
<webParts>
<webPart xmlns="http://schemas.microsoft.com/WebPart/v3">
<metaData>
<type name="Microsoft.SharePoint.Portal.WebControls.RSSAggregatorWebPart, Microsoft.SharePoint.Portal, Version=16.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" />
<importErrorMessage>Cannot import this web part.</importErrorMessage>
</metaData>
<data>
<properties>
<property name="InitialAsyncDataFetch" type="bool">False</property>
<property name="ChromeType" type="chrometype">Default</property>
<property name="ListName" type="string">{B60CCD97-C15A-462E-82E7-9684FA71D9A9}</property>
<property name="Height" type="string" />
<property name="CacheXslStorage" type="bool">True</property>
<property name="Default" type="string" />
<property name="ParameterBindings" type="string"><ParameterBinding Name="RequestUrl" Location="WPProperty[FeedUrl]"/></property>
<property name="AllowZoneChange" type="bool">True</property>
<property name="AutoRefresh" type="bool">False</property>
<property name="XmlDefinitionLink" type="string" />
<property name="DataFields" type="string" />
<property name="FeedLimit" type="int">5</property>
<property name="Hidden" type="bool">False</property>
<property name="NoDefaultStyle" type="string" null="true" />
<property name="XslLink" type="string" null="true" />
<property name="ViewFlag" type="string">0</property>
<property name="CatalogIconImageUrl" type="string" />
<property name="FireInitialRow" type="bool">True</property>
<property name="AutoRefreshInterval" type="int">60</property>
<property name="AllowConnect" type="bool">True</property>
<property name="FeedUrl" type="string">http://wxdata.weather.com/wxdata/weather/rss/local/INXX0300?cm_ven=LWO&cm_cat=rss</property>
<property name="AllowClose" type="bool">True</property>
<property name="ShowWithSampleData" type="bool">False</property>
<property name="Xsl" type="string"><xsl:stylesheet xmlns:x="http://www.w3.org/2001/XMLSchema"
version="1.0" exclude-result-prefixes="xsl ddwrt msxsl rssaggwrt"
xmlns:ddwrt="http://schemas.microsoft.com/WebParts/v2/DataView/runtime"
xmlns:rssaggwrt="http://schemas.microsoft.com/WebParts/v3/rssagg/runtime"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:msxsl="urn:schemas-microsoft-com:xslt"
xmlns:rssFeed="urn:schemas-microsoft-com:sharepoint:RSSAggregatorWebPart"
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:rss1="http://purl.org/rss/1.0/" xmlns:atom="http://www.w3.org/2005/Atom"
xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd"
xmlns:atom2="http://purl.org/atom/ns#">
<xsl:param name="rss_FeedLimit">5</xsl:param>
<xsl:param name="rss_ExpandFeed">false</xsl:param>
<xsl:param name="rss_LCID">1033</xsl:param>
<xsl:param name="rss_WebPartID">RSS_Viewer_WebPart</xsl:param>
<xsl:param name="rss_alignValue">left</xsl:param>
<xsl:param name="rss_IsDesignMode">True</xsl:param>
<xsl:template match="rss">
<xsl:call-template name="RSSMainTemplate"/>
</xsl:template>
<xsl:template match="rdf:RDF">
<xsl:call-template name="RDFMainTemplate"/>
</xsl:template>
<xsl:template match="atom:feed">
<xsl:call-template name="ATOMMainTemplate"/>
</xsl:template>
<xsl:template match="atom2:feed">
<xsl:call-template name="ATOM2MainTemplate"/>
</xsl:template>
<xsl:template name="RSSMainTemplate" xmlns:ddwrt="http://schemas.microsoft.com/WebParts/v2/DataView/runtime" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:msxsl="urn:schemas-microsoft-com:xslt">
<xsl:variable name="Rows" select="channel/item"/>
<xsl:variable name="RowCount" select="count($Rows)"/>
<div class="slm-layout-main" >
<div class="groupheader item medium">
<a href="{ddwrt:EnsureAllowedProtocol(string(channel/link))}">
<xsl:value-of select="channel/title"/>
</a>
</div>
<xsl:call-template name="RSSMainTemplate.body">
<xsl:with-param name="Rows" select="$Rows"/>
<xsl:with-param name="RowCount" select="count($Rows)"/>
</xsl:call-template>
</div>
</xsl:template>
<xsl:template name="RSSMainTemplate.body" xmlns:ddwrt="http://schemas.microsoft.com/WebParts/v2/DataView/runtime" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:msxsl="urn:schemas-microsoft-com:xslt">
<xsl:param name="Rows"/>
<xsl:param name="RowCount"/>
<xsl:for-each select="$Rows">
<xsl:variable name="CurPosition" select="position()" />
<xsl:variable name="RssFeedLink" select="$rss_WebPartID" />
<xsl:variable name="CurrentElement" select="concat($RssFeedLink,$CurPosition)" />
<xsl:if test="($CurPosition &lt;= $rss_FeedLimit)">
<div class="item link-item" >
<a href="{concat(&quot;javascript:ToggleItemDescription('&quot;,$CurrentElement,&quot;')&quot;)}" >
<xsl:value-of select="title"/>
</a>
<xsl:if test="$rss_ExpandFeed = true()">
<xsl:call-template name="RSSMainTemplate.description">
<xsl:with-param name="DescriptionStyle" select="string('display:block;')"/>
<xsl:with-param name="CurrentElement" select="$CurrentElement"/>
</xsl:call-template>
</xsl:if>
<xsl:if test="$rss_ExpandFeed = false()">
<xsl:call-template name="RSSMainTemplate.description">
<xsl:with-param name="DescriptionStyle" select="string('display:none;')"/>
<xsl:with-param name="CurrentElement" select="$CurrentElement"/>
</xsl:call-template>
</xsl:if>
</div>
</xsl:if>
</xsl:for-each>
</xsl:template>
<xsl:template name="RSSMainTemplate.description" xmlns:ddwrt="http://schemas.microsoft.com/WebParts/v2/DataView/runtime" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:msxsl="urn:schemas-microsoft-com:xslt">
<xsl:param name="DescriptionStyle"/>
<xsl:param name="CurrentElement"/>
<div id="{$CurrentElement}" class="description" align="{$rss_alignValue}" style="{$DescriptionStyle} text-align:{$rss_alignValue};">
<xsl:choose>
<!-- some RSS2.0 contain pubDate tag, some others dc:date -->
<xsl:when test="string-length(pubDate) &gt; 0">
<xsl:variable name="pubDateLength" select="string-length(pubDate) - 3" />
<xsl:value-of select="ddwrt:FormatDate(substring(pubDate,0,$pubDateLength),number($rss_LCID),3)"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="ddwrt:FormatDate(string(dc:date),number($rss_LCID),3)"/>
</xsl:otherwise>
</xsl:choose>
<xsl:if test="string-length(description) &gt; 0">
<xsl:variable name="SafeHtml">
<xsl:call-template name="GetSafeHtml">
<xsl:with-param name="Html" select="description"/>
</xsl:call-template>
</xsl:variable>
- <xsl:value-of select="$SafeHtml" disable-output-escaping="yes"/>
</xsl:if>
<div class="description">
<a href="{ddwrt:EnsureAllowedProtocol(string(link))}">More...</a>
</div>
</div>
</xsl:template>
<xsl:template name="RDFMainTemplate" xmlns:ddwrt="http://schemas.microsoft.com/WebParts/v2/DataView/runtime" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:msxsl="urn:schemas-microsoft-com:xslt">
<xsl:variable name="Rows" select="rss1:item"/>
<xsl:variable name="RowCount" select="count($Rows)"/>
<div class="slm-layout-main" >
<div class="groupheader item medium">
<a href="{ddwrt:EnsureAllowedProtocol(string(rss1:channel/rss1:link))}">
<xsl:value-of select="rss1:channel/rss1:title"/>
</a>
</div>
<xsl:call-template name="RDFMainTemplate.body">
<xsl:with-param name="Rows" select="$Rows"/>
<xsl:with-param name="RowCount" select="count($Rows)"/>
</xsl:call-template>
</div>
</xsl:template>
<xsl:template name="RDFMainTemplate.body" xmlns:ddwrt="http://schemas.microsoft.com/WebParts/v2/DataView/runtime" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:msxsl="urn:schemas-microsoft-com:xslt">
<xsl:param name="Rows"/>
<xsl:param name="RowCount"/>
<xsl:for-each select="$Rows">
<xsl:variable name="CurPosition" select="position()" />
<xsl:variable name="RssFeedLink" select="$rss_WebPartID" />
<xsl:variable name="CurrentElement" select="concat($RssFeedLink,$CurPosition)" />
<xsl:if test="($CurPosition &lt;= $rss_FeedLimit)">
<div class="item link-item" >
<a href="{concat(&quot;javascript:ToggleItemDescription('&quot;,$CurrentElement,&quot;')&quot;)}" >
<xsl:value-of select="rss1:title"/>
</a>
<xsl:if test="$rss_ExpandFeed = true()">
<xsl:call-template name="RDFMainTemplate.description">
<xsl:with-param name="DescriptionStyle" select="string('display:block;')"/>
<xsl:with-param name="CurrentElement" select="$CurrentElement"/>
</xsl:call-template>
</xsl:if>
<xsl:if test="$rss_ExpandFeed = false()">
<xsl:call-template name="RDFMainTemplate.description">
<xsl:with-param name="DescriptionStyle" select="string('display:none;')"/>
<xsl:with-param name="CurrentElement" select="$CurrentElement"/>
</xsl:call-template>
</xsl:if>
</div>
</xsl:if>
</xsl:for-each>
</xsl:template>
<xsl:template name="RDFMainTemplate.description" xmlns:ddwrt="http://schemas.microsoft.com/WebParts/v2/DataView/runtime" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:msxsl="urn:schemas-microsoft-com:xslt">
<xsl:param name="DescriptionStyle"/>
<xsl:param name="CurrentElement"/>
<div id="{$CurrentElement}" class="description" align="{$rss_alignValue}" style="{$DescriptionStyle} text-align:{$rss_alignValue};">
<xsl:value-of select="ddwrt:FormatDate(string(dc:date),number($rss_LCID),3)"/>
<xsl:if test="string-length(rss1:description) &gt; 0">
<xsl:variable name="SafeHtml">
<xsl:call-template name="GetSafeHtml">
<xsl:with-param name="Html" select="rss1:description"/>
</xsl:call-template>
</xsl:variable>
- <xsl:value-of select="$SafeHtml" disable-output-escaping="yes"/>
</xsl:if>
<div class="description">
<a href="{ddwrt:EnsureAllowedProtocol(string(rss1:link))}">More...</a>
</div>
</div>
</xsl:template>
<xsl:template name="ATOMMainTemplate" xmlns:ddwrt="http://schemas.microsoft.com/WebParts/v2/DataView/runtime" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:msxsl="urn:schemas-microsoft-com:xslt">
<xsl:variable name="Rows" select="atom:entry"/>
<xsl:variable name="RowCount" select="count($Rows)"/>
<div class="slm-layout-main" >
<div class="groupheader item medium">
<a href="{ddwrt:EnsureAllowedProtocol(string(atom:link/@href))}">
<xsl:value-of select="atom:title"/>
</a>
</div>
<xsl:call-template name="ATOMMainTemplate.body">
<xsl:with-param name="Rows" select="$Rows"/>
<xsl:with-param name="RowCount" select="count($Rows)"/>
</xsl:call-template>
</div>
</xsl:template>
<xsl:template name="ATOMMainTemplate.body" xmlns:ddwrt="http://schemas.microsoft.com/WebParts/v2/DataView/runtime" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:msxsl="urn:schemas-microsoft-com:xslt">
<xsl:param name="Rows"/>
<xsl:param name="RowCount"/>
<xsl:for-each select="$Rows">
<xsl:variable name="CurPosition" select="position()" />
<xsl:variable name="RssFeedLink" select="$rss_WebPartID" />
<xsl:variable name="CurrentElement" select="concat($RssFeedLink,$CurPosition)" />
<xsl:if test="($CurPosition &lt;= $rss_FeedLimit)">
<div class="item link-item" >
<a href="{concat(&quot;javascript:ToggleItemDescription('&quot;,$CurrentElement,&quot;')&quot;)}" >
<xsl:value-of select="atom:title"/>
</a>
<xsl:if test="$rss_ExpandFeed = true()">
<xsl:call-template name="ATOMMainTemplate.description">
<xsl:with-param name="DescriptionStyle" select="string('display:block;')"/>
<xsl:with-param name="CurrentElement" select="$CurrentElement"/>
</xsl:call-template>
</xsl:if>
<xsl:if test="$rss_ExpandFeed = false()">
<xsl:call-template name="ATOMMainTemplate.description">
<xsl:with-param name="DescriptionStyle" select="string('display:none;')"/>
<xsl:with-param name="CurrentElement" select="$CurrentElement"/>
</xsl:call-template>
</xsl:if>
</div>
</xsl:if>
</xsl:for-each>
</xsl:template>
<xsl:template name="ATOMMainTemplate.description" xmlns:ddwrt="http://schemas.microsoft.com/WebParts/v2/DataView/runtime" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:msxsl="urn:schemas-microsoft-com:xslt">
<xsl:param name="DescriptionStyle"/>
<xsl:param name="CurrentElement"/>
<div id="{$CurrentElement}" class="description" align="{$rss_alignValue}" style="{$DescriptionStyle} text-align:{$rss_alignValue};">
<xsl:value-of select="ddwrt:FormatDate(string(atom:updated),number($rss_LCID),3)"/>
<xsl:choose>
<xsl:when test="string-length(atom:summary) &gt; 0">
<xsl:variable name="SafeHtml">
<xsl:call-template name="GetSafeHtml">
<xsl:with-param name="Html" select="atom:summary"/>
</xsl:call-template>
</xsl:variable>
- <xsl:value-of select="$SafeHtml" disable-output-escaping="yes"/>
</xsl:when>
<xsl:when test="string-length(atom:content) &gt; 0">
<xsl:variable name="SafeHtml">
<xsl:call-template name="GetSafeHtml">
<xsl:with-param name="Html" select="atom:content"/>
</xsl:call-template>
</xsl:variable>
- <xsl:value-of select="$SafeHtml" disable-output-escaping="yes"/>
</xsl:when>
</xsl:choose>
<div class="description">
<a href="{ddwrt:EnsureAllowedProtocol(string(atom:link/@href))}">More...</a>
</div>
</div>
</xsl:template>
<xsl:template name="ATOM2MainTemplate" xmlns:ddwrt="http://schemas.microsoft.com/WebParts/v2/DataView/runtime" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:msxsl="urn:schemas-microsoft-com:xslt">
<xsl:variable name="Rows" select="atom2:entry"/>
<xsl:variable name="RowCount" select="count($Rows)"/>
<div class="slm-layout-main" >
<div class="groupheader item medium">
<a href="{ddwrt:EnsureAllowedProtocol(string(atom2:link/@href))}">
<xsl:value-of select="atom2:title"/>
</a>
</div>
<xsl:call-template name="ATOM2MainTemplate.body">
<xsl:with-param name="Rows" select="$Rows"/>
<xsl:with-param name="RowCount" select="count($Rows)"/>
</xsl:call-template>
</div>
</xsl:template>
<xsl:template name="ATOM2MainTemplate.body" xmlns:ddwrt="http://schemas.microsoft.com/WebParts/v2/DataView/runtime" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:msxsl="urn:schemas-microsoft-com:xslt">
<xsl:param name="Rows"/>
<xsl:param name="RowCount"/>
<xsl:for-each select="$Rows">
<xsl:variable name="CurPosition" select="position()" />
<xsl:variable name="RssFeedLink" select="$rss_WebPartID" />
<xsl:variable name="CurrentElement" select="concat($RssFeedLink,$CurPosition)" />
<xsl:if test="($CurPosition &lt;= $rss_FeedLimit)">
<div class="item link-item" >
<a href="{concat(&quot;javascript:ToggleItemDescription('&quot;,$CurrentElement,&quot;')&quot;)}" >
<xsl:value-of select="atom2:title"/>
</a>
<xsl:if test="$rss_ExpandFeed = true()">
<xsl:call-template name="ATOM2MainTemplate.description">
<xsl:with-param name="DescriptionStyle" select="string('display:block;')"/>
<xsl:with-param name="CurrentElement" select="$CurrentElement"/>
</xsl:call-template>
</xsl:if>
<xsl:if test="$rss_ExpandFeed = false()">
<xsl:call-template name="ATOM2MainTemplate.description">
<xsl:with-param name="DescriptionStyle" select="string('display:none;')"/>
<xsl:with-param name="CurrentElement" select="$CurrentElement"/>
</xsl:call-template>
</xsl:if>
</div>
</xsl:if>
</xsl:for-each>
</xsl:template>
<xsl:template name="ATOM2MainTemplate.description" xmlns:ddwrt="http://schemas.microsoft.com/WebParts/v2/DataView/runtime" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:msxsl="urn:schemas-microsoft-com:xslt">
<xsl:param name="DescriptionStyle"/>
<xsl:param name="CurrentElement"/>
<div id="{$CurrentElement}" class="description" align="{$rss_alignValue}" style="{$DescriptionStyle} text-align:{$rss_alignValue};">
<xsl:value-of select="ddwrt:FormatDate(string(atom2:updated),number($rss_LCID),3)"/>
<xsl:choose>
<xsl:when test="string-length(atom2:summary) &gt; 0">
<xsl:variable name="SafeHtml">
<xsl:call-template name="GetSafeHtml">
<xsl:with-param name="Html" select="atom2:summary"/>
</xsl:call-template>
</xsl:variable>
- <xsl:value-of select="$SafeHtml" disable-output-escaping="yes"/>
</xsl:when>
<xsl:when test="string-length(atom2:content) &gt; 0">
<xsl:variable name="SafeHtml">
<xsl:call-template name="GetSafeHtml">
<xsl:with-param name="Html" select="atom2:content"/>
</xsl:call-template>
</xsl:variable>
- <xsl:value-of select="$SafeHtml" disable-output-escaping="yes"/>
</xsl:when>
</xsl:choose>
<div class="description">
<a href="{ddwrt:EnsureAllowedProtocol(string(atom2:link/@href))}">More...</a>
</div>
</div>
</xsl:template>
<xsl:template name="GetSafeHtml">
<xsl:param name="Html"/>
<xsl:choose>
<xsl:when test="$rss_IsDesignMode = 'True'">
<xsl:value-of select="$Html"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="rssaggwrt:MakeSafe($Html)"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
</xsl:stylesheet>
</property>
<property name="EnableOriginalValue" type="bool">False</property>
<property name="ExpandFeed" type="bool">False</property>
<property name="ListUrl" type="string" null="true" />
<property name="DataSourceID" type="string" />
<property name="CacheXslTimeOut" type="int">600</property>
<property name="ManualRefresh" type="bool">False</property>
<property name="ViewFlags" type="Microsoft.SharePoint.SPViewFlags, Microsoft.SharePoint, Version=16.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c">None</property>
<property name="ChromeState" type="chromestate">Normal</property>
<property name="AllowHide" type="bool">True</property>
<property name="ListDisplayName" type="string" null="true" />
<property name="SampleData" type="string" null="true" />
<property name="AsyncRefresh" type="bool">False</property>
<property name="Direction" type="direction">NotSet</property>
<property name="Title" type="string">RSS Viewer</property>
<property name="ListId" type="System.Guid, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">b60ccd97-c15a-462e-82e7-9684fa71d9a9</property>
<property name="Description" type="string">Displays an RSS feed.</property>
<property name="AllowMinimize" type="bool">True</property>
<property name="TitleUrl" type="string" />
<property name="DataSourcesString" type="string">
<%@ Register TagPrefix="WebControls" Namespace="Microsoft.SharePoint.WebControls" Assembly="Microsoft.SharePoint, Version=16.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Register TagPrefix="WebPartPages" Namespace="Microsoft.SharePoint.WebPartPages" Assembly="Microsoft.SharePoint, Version=16.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<WebControls:XmlUrlDataSource runat="server" AuthType="None" HttpMethod="GET">
<DataFileParameters>
<WebPartPages:DataFormParameter Name="RequestUrl" ParameterKey="RequestUrl" PropertyName="ParameterValues"/>
</DataFileParameters>
</WebControls:XmlUrlDataSource></property>
<property name="DisplayName" type="string" />
<property name="PageType" type="Microsoft.SharePoint.PAGETYPE, Microsoft.SharePoint, Version=16.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c">PAGE_NORMALVIEW</property>
<property name="Width" type="string" />
<property name="AllowEdit" type="bool">True</property>
<property name="ExportMode" type="exportmode">All</property>
<property name="CacheRefreshTimeInMins" type="int">120</property>
<property name="PageSize" type="int">-1</property>
<property name="ViewContentTypeId" type="string" />
<property name="HelpUrl" type="string" />
<property name="XmlDefinition" type="string" />
<property name="UseSQLDataSourcePaging" type="bool">True</property>
<property name="TitleIconImageUrl" type="string" />
<property name="MissingAssembly" type="string">Cannot import this web part.</property>
<property name="HelpMode" type="helpmode">Modeless</property>
</properties>
</data>
</webPart>
</webParts>\
Piyush K Singh 