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Rajeev

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Viewing 2 posts - 1 through 2 (of 2 total)
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  • July 2, 2017 at 6:43 pm in reply to: What is the Difference Between IEnumerable and IQueryable in C# #1075
    Rajeev
    Keymaster

    The main difference between IEnumerable and IQueryable in C# is,

    IEnumerable is suitable for querying data from in-memory collections such as Array and List.IEnumerable is beneficial for LINQ to XML and LINQ to Object queries.

    IQueryable is suitable for querying data from out-of-memory collections such as databases.IQueryable is beneficial for Linq to SQL queries.

    January 17, 2017 at 3:53 pm in reply to: How to remove Header of the XML file in C#? #441
    Rajeev
    Keymaster

    There are various ways we can remove the version information of the xml file from C#.

    1) Remove the XML header from an XML File using the RemoveChild() method of XmlDocument using foreach XmlNode

     XmlDocument xmlDoc = new XmlDocument();
    xmlDoc.Load("../test.xml");
    
    foreach (XmlNode n in xmlDoc)
    {
      if (n.NodeType == XmlNodeType.XmlDeclaration)
      {
         xmlDoc.RemoveChild(n);
      }
    }

    2) Remove the XML version info from an XML File by Removing the FirstChild of XmlDocument using the RemoveChild().

    Above mentioned if condition can be changed as below to remove the xml header information from an xml file.
    if we blindly remove the first child from xml without an if check , it may remove xml root itself if xml version information not present in the xml.

    if (xmlDoc.FirstChild.NodeType == XmlNodeType.XmlDeclaration)
    {
       //Remove the xml version,if it is the first child of the doc.
        xmlDoc.RemoveChild(xmlDoc.FirstChild);
    }/

    3) Remove the XML header using string.Replace statement.
    If xmldoc is made in string format,we can simply remove the xml version info from the xml file using
    the string.Replace statement.

    string xmlDoc = stringXmlDoc.Replace("<!--?xml version=\"1.0\" encoding=\"UTF-8\" ?-->", "");

    If we are writing an xml document and don’t want to write xml declaration in the xml doc then use the ConformanceLevel and OmitXmlDeclaration properties.

       XmlWriter writer;
       writer.Settings = new XmlWriterSettings();
       writer.Settings.ConformanceLevel = ConformanceLevel.Fragment;
       writer.Settings.OmitXmlDeclaration = true;
    
    • This reply was modified 2 years, 10 months ago by Rajeev.
    • This reply was modified 2 years, 10 months ago by Rajeev.
    • This reply was modified 2 years, 10 months ago by Rajeev.
    • This reply was modified 2 years, 10 months ago by Rajeev.
    • This reply was modified 2 years, 10 months ago by Rajeev.
    • This reply was modified 2 years, 10 months ago by Rajeev.
    • This reply was modified 2 years, 10 months ago by Rajeev.
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Viewing 2 posts - 1 through 2 (of 2 total)

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