Insert node in xml document using c#

c# xml hp-uft

11,233

When you do this:

XmlElement parentEle = doc.DocumentElement;
parentEle.AppendChild(xmlDocFrag);

You're appending the node to the root of the document. You probably wanted to select the actual readContract node that the item is supposed to be appended into. As an example:

XmlNode newNode = doc.CreateNode(XmlNodeType.Element, "productGroup", "");
newNode.InnerText = "something";

XmlNode readContractNode = doc["Envelope"]["Body"]["readContract"];
XmlElement groups = readContractNode["productGroups"];
readContractNode.InsertAfter(newNode, groups);

Of course you'd probably want to handle the case where there are already multiple child productGroup elements, but the idea is the same.

11,233

Author by

Madhan

Updated on June 04, 2022

Comments

Madhan almost 2 years

I was trying to insert an XML node in XML document at a specific position.

This is my xml:

<Envelope xmlns="http://schemas.xmlsoap.org/soap/envelope/">
    <Body>
        <readContract xmlns="http://implementation.company.schema.reference">
            <ContactNumbers>10158</ContactNumbers>
            <productGroups>0085</productGroups>
            <indicationBalanceInfo>false</indicationBalanceInfo>
            <indicationBlocked>true</indicationBlocked>
        </readContract>
    </Body>
</Envelope>

And am trying to insert another tag <productGroups>0093</productGroups> below to the tag <productGroups>0085</productGroups>

Expecting like the below:

<Envelope xmlns="http://schemas.xmlsoap.org/soap/envelope/">
    <Body>
        <readContract xmlns="http://implementation.company.schema.reference">
            <ContactNumbers>10158</ContactNumbers>
            <productGroups>0085</productGroups>
            <productGroups>0093</productGroups>
            <indicationBalanceInfo>false</indicationBalanceInfo>
            <indicationBlocked>true</indicationBlocked>
        </readContract>
    </Body>
</Envelope>

Used the below C# code to achieve it.

XmlDocument doc = new XmlDocument();
string inputxml = this.StServiceCallActivity5.InputEnvelope.InnerXml.ToString();
//Here inputxml contains whole xml document.
string addxml = "<productGroups>0093</productGroups>";
doc.LoadXml(inputxml);
XmlDocumentFragment xmlDocFrag = doc.CreateDocumentFragment();
xmlDocFrag.InnerXml = addxml;
XmlElement parentEle = doc.DocumentElement;
parentEle.AppendChild(xmlDocFrag);

And it returns value like

<Envelope xmlns="http://schemas.xmlsoap.org/soap/envelope/">
    <Body>
        <readContract xmlns="http://implementation.company.schema.reference">
            <ContactNumbers>10158</ContactNumbers>
            <productGroups>0085</productGroups>
            <productGroups>0093</productGroups>
            <indicationBalanceInfo>false</indicationBalanceInfo>
            <indicationBlocked>true</indicationBlocked>
        </readContract>
    </Body>
    <productGroups xmlns="">0093</productGroups>
</Envelope>

Am a newbie to C# code, kindly help me to get the XML doc as expected. your help is much appreciated.