Get tag data in XML

You can use the php class SimpleXml .

Here's a simple example of how to use the class.

<?php

    $xml = '<dados-cad><nome>Wender</nome><data>2805094</data><code>311</code></dados-cad>';

    $simpleXml = simplexml_load_string($xml);

    // Acessando os elementos

    echo $simpleXml->nome;
    echo $simpleXml->data;

More examples of the basic use of this class here .

I know almost nothing about HTML / XML yet.

Could anyone help to make this kind of query up using C #?

I use Visual Studio 2017, I am mounting a client registry in windows-forms.

This time, when the xml has sub-levels, I have difficulty getting the content of the highest / highest level (I do not know the term).

The example below refers to a webservic for cpf query:

    <consulta>
      <status>1</status>
      <return>OK</return>
      <result>
        <numero_de_cpf>000.000.000-00</numero_de_cpf>
        <nome_da_pf>FULANO DE TAL</nome_da_pf>
        <data_nascimento>30/12/1981</data_nascimento>
        <situacao_cadastral>REGULAR</situacao_cadastral>
        <data_inscricao>05/05/2000</data_inscricao>
        <digito_verificador>00</digito_verificador>
        <comprovante_emitido>9F73.DBF8.4F85.7860</comprovante_emitido>
        <comprovante_emitido_data>12:21:27 às 29/08/2017</comprovante_emitido_data>
      </result>
    </consulta>

What I need is to get the contents of the 'pf_name' tag and play it in a windows-form.

I'm using the code below, but always giving some reference error in xml placement.

    private void button1_validar_cpf_Click(object sender, EventArgs e)
    {
        string urlConsulta = "http://ws.umsitequalquer.com.br/cpf/?xml5&cpf=@cpf&data=@dt_nasc&token=12545269WrhPkfgDHe11972584";
        DataSet dsRetornaEndereco = new DataSet();
        dsRetornaEndereco.ReadXml(urlConsulta.Replace("@cpf", maskedTextBox1_cpf.Text));
        dsRetornaEndereco.ReadXml(urlConsulta.Replace("@dt_nasc", maskedTextBox1_dt_nasc.Text));
        string retorno = dsRetornaEndereco.Tables[0].Rows[0]["status"].ToString();
        if (retorno == "false")
        {
            MessageBox.Show(this, "CPF Inválido!", "Validação CPF", MessageBoxButtons.OK, MessageBoxIcon.Warning);
        }
        else
        {
            textBox1_nome.Text = dsRetornaEndereco.Tables[0].Rows[0]["nome_da_pf"].ToString();
        }
    }

After typing an invalid cpf, all right, the application returns the invalid cpf message, but when I launch a valid cpf, Visual S. says:

Message: Excess No Treatment

System.ArgumentException: 'The column' pf_name 'does not belong to the query table.'

I'm cracking my head rsrsrs

Thanks in advance!

Vlw!