Save XML string to XML file using C# and VB.Net in ASP.Net

Hi namojainashis...,

Load the XmlDocument from the xml string. Then using Save method save id as xml file.

Refer below code.

C#

protected void Page_Load(object sender, EventArgs e)
{
    string xml = "<Document_Input>";
    xml += "<documentName>139459_AE_IE_SC Contract_V36</documentName>";
    xml += "<documentLocation>UploadToDMS/139459/139459_AE_IE_SC Contract_V36.pdf</documentLocation>";
    xml += "<documentExtension> pdf</documentExtension>";
    xml += "<parentFolderName>AE_IE_SC Contract</parentFolderName>";
    xml += "<pathToRoot>test/Projects/139459</pathToRoot>";
    xml += "<dataDefName>MDMS</dataDefName>";
    xml += "<docFields/>";
    xml += "<docField>";
    xml += "<fieldName>Organization</fieldName>";
    xml += "<fieldValue>text</fieldValue>";
    xml += "</docField>";
    xml += "<docField>";
    xml += "<fieldName>Subject</fieldName>";
    xml += "<fieldValue></fieldValue>";
    xml += "</docField>";
    xml += "<docField>";
    xml += "<fieldName>Section</fieldName>";
    xml += "<fieldValue></fieldValue>";
    xml += "</docField>";
    xml += "<docField>";
    xml += "<fieldName>Document_Type</fieldName>";
    xml += "<fieldValue>AE_IE_SC Contract</fieldValue>";
    xml += "</docField>";
    xml += "<docField>";
    xml += "<fieldName>Document_ID</fieldName>";
    xml += "<fieldValue>139459_AE_IE_SC Contract_V36</fieldValue>";
    xml += "</docField>";
    xml += "</Document_Input>";
    System.Xml.XmlDocument xdoc = new System.Xml.XmlDocument();
    xdoc.LoadXml(xml);
    xdoc.Save(Server.MapPath("~/Document.xml"));
}

VB.Net

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
    Dim xml As String = "<Document_Input>"
    xml += "<documentName>139459_AE_IE_SC Contract_V36</documentName>"
    xml += "<documentLocation>UploadToDMS/139459/139459_AE_IE_SC Contract_V36.pdf</documentLocation>"
    xml += "<documentExtension> pdf</documentExtension>"
    xml += "<parentFolderName>AE_IE_SC Contract</parentFolderName>"
    xml += "<pathToRoot>test/Projects/139459</pathToRoot>"
    xml += "<dataDefName>MDMS</dataDefName>"
    xml += "<docFields/>"
    xml += "<docField>"
    xml += "<fieldName>Organization</fieldName>"
    xml += "<fieldValue>text</fieldValue>"
    xml += "</docField>"
    xml += "<docField>"
    xml += "<fieldName>Subject</fieldName>"
    xml += "<fieldValue></fieldValue>"
    xml += "</docField>"
    xml += "<docField>"
    xml += "<fieldName>Section</fieldName>"
    xml += "<fieldValue></fieldValue>"
    xml += "</docField>"
    xml += "<docField>"
    xml += "<fieldName>Document_Type</fieldName>"
    xml += "<fieldValue>AE_IE_SC Contract</fieldValue>"
    xml += "</docField>"
    xml += "<docField>"
    xml += "<fieldName>Document_ID</fieldName>"
    xml += "<fieldValue>139459_AE_IE_SC Contract_V36</fieldValue>"
    xml += "</docField>"
    xml += "</Document_Input>"
    Dim xdoc As System.Xml.XmlDocument = New System.Xml.XmlDocument()
    xdoc.LoadXml(xml)
    xdoc.Save(Server.MapPath("~/Document.xml"))
End Sub

Generated xml file

<Document_Input>
  <documentName>139459_AE_IE_SC Contract_V36</documentName>
  <documentLocation>UploadToDMS/139459/139459_AE_IE_SC Contract_V36.pdf</documentLocation>
  <documentExtension> pdf</documentExtension>
  <parentFolderName>AE_IE_SC Contract</parentFolderName>
  <pathToRoot>test/Projects/139459</pathToRoot>
  <dataDefName>MDMS</dataDefName>
  <docFields />
  <docField>
    <fieldName>Organization</fieldName>
    <fieldValue>text</fieldValue>
  </docField>
  <docField>
    <fieldName>Subject</fieldName>
    <fieldValue>
    </fieldValue>
  </docField>
  <docField>
    <fieldName>Section</fieldName>
    <fieldValue>
    </fieldValue>
  </docField>
  <docField>
    <fieldName>Document_Type</fieldName>
    <fieldValue>AE_IE_SC Contract</fieldValue>
  </docField>
  <docField>
    <fieldName>Document_ID</fieldName>
    <fieldValue>139459_AE_IE_SC Contract_V36</fieldValue>
  </docField>
</Document_Input>

Note: Make sure you have valid xml string.