How to get webservice (dataset) result as textbox.text?

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VB

database

webservice

Hi,
I wanted to ask on how to get webservice result ( i made it return value as Dataset, but it's NOT must. I might be return it as String or Datatable too if it necessary) as value in textbox (textbox.text) or label?

I have this as my webservice ( for example )

<WebMethod()> _
   Public Function AmbilBuku() As Dataset
       Dim conn As String
       conn = "server=localhost;uid=root;pwd=;database=uptbahasa"

       Dim sql As String = "Select * from buku

       Dim konek As New MySqlConnection(conn)
       Dim OdbcDa As New MySqlDataAdapter(sql, conn)
       konek.Open()
       Dim ds As New DataSet
       OdbcDa.Fill(ds)
       Return ds
   End Function

From that I return the query result as dataset, and will throw me some result like this (if I browse it through browser).

<dataset>>
	<xs:schema id="NewDataSet">
	<xs:element name="NewDataSet" msdata:IsDataSet="true" msdata:UseCurrentLocale="true">
		<xs:complexType><xs:choice minOccurs="0" maxOccurs="unbounded">
			<xs:element name="Table">
				<xs:complexType>
					<xs:sequence>
						<xs:element name="id" type="xs:int" minOccurs="0"/>
						<xs:element name="username" type="xs:string" minOccurs="0"/>
						<xs:element name="password" type="xs:string" minOccurs="0"/>
						<xs:element name="grup" type="xs:string" minOccurs="0"/>
					</xs:sequence>
				</xs:complexType>
			</xs:element></xs:choice></xs:complexType></xs:element>
	</xs:schema>
<diffgr:diffgram>
	<NewDataSet>
		<Table diffgr:id="Table1" msdata:rowOrder="0">
			<id>1</id>
			<username>admin</username>
			<password>21232f297a57a5a743894a0e4a801fc3</password>
			<grup>administrator</grup></Table>
		<Table diffgr:id="Table2" msdata:rowOrder="1">
		<id>11</id>
		<username>Yoyo</username>
		<password>48dc8d29308eb256edc76f25def07251</password>
		<grup>operator</grup>
		</Table>
</NewDataSet>
</diffgr:diffgram>
</DataSet>

My question is how to get for example ID and Username as textbox.text in my windows form?

Thanks a lot in advance.