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POUsing SelectSingleNode with XPath returns NULL
 

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  1. POUsing SelectSingleNode with XPath returns NULL
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    <p>I trying to modify an XML file with <code>SelectSingleNode</code>. The structure of file is </p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003"&gt; &lt;ProjectExtensions&gt; &lt;Borland.Personality&gt;Delphi.Personality&lt;/Borland.Personality&gt; &lt;Borland.ProjectType&gt;VCLApplication&lt;/Borland.ProjectType&gt; &lt;BorlandProject&gt; &lt;BorlandProject&gt; &lt;Delphi.Personality&gt; &lt;Parameters&gt; ... &lt;/Parameters&gt; &lt;VersionInfo&gt; &lt;VersionInfo Name="IncludeVerInfo"&gt;True&lt;/VersionInfo&gt; &lt;VersionInfo Name="AutoIncBuild"&gt;False&lt;/VersionInfo&gt; &lt;VersionInfo Name="MajorVer"&gt;4&lt;/VersionInfo&gt; &lt;VersionInfo Name="MinorVer"&gt;1&lt;/VersionInfo&gt; &lt;VersionInfo Name="Release"&gt;3&lt;/VersionInfo&gt; &lt;VersionInfo Name="Build"&gt;559&lt;/VersionInfo&gt; &lt;VersionInfo Name="Debug"&gt;False&lt;/VersionInfo&gt; &lt;VersionInfo Name="PreRelease"&gt;False&lt;/VersionInfo&gt; &lt;VersionInfo Name="Special"&gt;False&lt;/VersionInfo&gt; &lt;VersionInfo Name="Private"&gt;False&lt;/VersionInfo&gt; &lt;VersionInfo Name="DLL"&gt;False&lt;/VersionInfo&gt; &lt;VersionInfo Name="Locale"&gt;1049&lt;/VersionInfo&gt; &lt;VersionInfo Name="CodePage"&gt;1251&lt;/VersionInfo&gt; &lt;/VersionInfo&gt; ... ... ... </code></pre> <p>My code on VS C# is </p> <pre><code>using System.Xml; namespace xmledit { class Program { private static void Main(string[] args) { XmlDocument doc = new XmlDocument(); doc.Load("arm.xml"); var node = doc.SelectSingleNode("//VersionInfo[@Name='Build']"); if (node != null) node.InnerText = "123"; doc.Save("temp.xml"); } } } </code></pre> <p>So, i trying to modify Tag <code>VersionInfo</code> with <code>Name="Build"</code>, but <code>SelectSingleNode</code> returns <code>NULL</code>. What I doing wrong?</p>
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    1. USSergey Konkin
    1. USSergey Konkin
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      1. VTUpMod
    1. CODo you mind if I make a completely different solution that uses LINQ -> XML instead of XPath?
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      1. USIt'sNotALie.
    2. COYeah, it would be nice
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      1. USSergey Konkin
 

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