Remove: from xml generated by my web service

Question

When I use XML in a Rest web service, it appears like this:

<getCnpjParceiroResponse xmlns="http://tempuri.org/">
    <getCnpjParceiroResult 
        xmlns:a="http://schemas.datacontract.org/2004/07/V99SuporteTecnicoContracts" 
        xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
        <a:Bairro>SAO VICENTE</a:Bairro>
        <a:CEP i:nil="true"/>
        <a:CNPJ>11951604000130</a:CNPJ>
        <a:CaminhoLogo/>
        <a:Celular i:nil="true"/>
        <a:Cidade>PIRACICABA</a:Cidade>
        <a:Complemento i:nil="true"/>
        <a:DDD>0</a:DDD>
        <a:DDDCelular>0</a:DDDCelular>
        <a:DataAlteracao>0001-01-01T00:00:00</a:DataAlteracao>
        <a:DataCadastro>0001-01-01T00:00:00</a:DataCadastro>
        <a:Distrito i:nil="true"/>
        <a:Email i:nil="true"/>
        <a:Endereco>AV. CRISTOVAO COLOMBO</a:Endereco>
        <a:EnderecoIPInstalacao i:nil="true"/>
        <a:Estado i:nil="true"/>
        <a:IDPdv>0</a:IDPdv>
        <a:IDTipoEstabelecimento>0</a:IDTipoEstabelecimento>
        <a:IDTipoRede>0</a:IDTipoRede>
        <a:ID_Rede>0</a:ID_Rede>
        <a:IS_Ativo>false</a:IS_Ativo>
        <a:Latitude>0</a:Latitude>
        <a:Longitude>0</a:Longitude>
        <a:NomeFantasia i:nil="true"/>
        <a:NomeRede i:nil="true"/>
        <a:Numero i:nil="true"/>
        <a:QtdeCheckOuts>0</a:QtdeCheckOuts>
        <a:RazaoSocial>CONVENIENCIA RADIAL NORTE SUL LTDA EPP</a:RazaoSocial>
        <a:Telefone i:nil="true"/>
        <a:TokenAuthentication i:nil="true"/>
    </getCnpjParceiroResult>
</getCnpjParceiroResponse>

Answer 1

if you want a quick and practical way, use the Replace method of the String or Stringbuilder class (faster):

string xml = new StringBuilder(xmlContent);
xml.Replace("<a:", "<");
xml.Replace("</:a", "</");
xmlContent = xml.ToString();

but I advise you to read the xml by a specialized class XmlReader or similar, (explanation here: http://msdn.microsoft.com/en-us/library/vstudio/system.xml.xmlreader.read) and just replace the names to avoid problems with the "body" of the file.

Answer 2

The prefix a: before those elements declares that they belong to a namespace. This is not part of the element name. You cannot simply remove them without making changes to other parts of the file or your document may be invalid.

If you really need to remove the prefixes, you will have to change the declaration as well xmlns:a who is in <getCnpjParceiroResult>. This statement associates all descending elements that have prefixes a belong to the namespace "http://schemas.datacontract.org/2004/07/V99SuporteTecnicoContracts". As there are no elements without the prefix a among the descendants of <getCnpjParceiroResult>, you can establish this namespace as the default, which allows elements to be declared without prefix.

So that your document remains valid and does not have prefixes a the namespace must be declared using xmlns (unfilled):

<getCnpjParceiroResponse xmlns="http://tempuri.org/">
    <getCnpjParceiroResult 
        xmlns="http://schemas.datacontract.org/2004/07/V99SuporteTecnicoContracts" 
        xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
        <Bairro>SAO VICENTE</Bairro>
        <CEP i:nil="true"/>
        <CNPJ>11951604000130</CNPJ>
        <CaminhoLogo/>
        <Celular i:nil="true"/>
        ...
        <Telefone i:nil="true"/>
        <TokenAuthentication i:nil="true"/>
    </getCnpjParceiroResult>
</getCnpjParceiroResponse>

As for the generation of XML, you need to figure out how to configure this in the software that generates it. There must be some map or record where you can associate prefixes with namespaces, or choose preferences. Anyway, there is no difference in functional terms for prefixed or non-prefixed tags, unless you are using technologies that do not support namespaces. The two Xmls, yours with prefix a, what I posted above without the prefix, or yet another declaring a different prefix (ex: <datacontract:cnpj>) shall be equivalent and equally valid if the association is for the same namespace.

Answer 3

I resolved so:

Bodystyle = Webmessagebodystyle.Bare

Before it was like this:

Bodystyle = Webmessagebodystyle.Wrapped