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ProgramadoraR

selecionar um dado na base dados e colocar numa variavel

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ProgramadoraR

Como é que eu selecciono um dado na base dados para depois colocar numa variavel?

select NomeColuna from NomeTabela where ID=@ID

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NunoDinis

Tens aqui um bom exemplo, só precisas de migrar para c#. Tenta, se surgirem dificuldades posta cá que eu logo dou-te auxilio.

Dim query As String = "QUERY"
Dim cmd As New SqlCommand(query, conexao)
' Cria uma consulta paremetrizada
  cmd.Parameters.Add(New SqlParameter("Nome", nome))
' executa a consulta.
  Dim dr As SqlDataReader = cmd.ExecuteReader(CommandBehavior.SingleRow)
' exibe o resutlado nas labels
	    If dr.HasRows Then
              dr.Read()
	    label1.text= dr.Item(1).ToString
   label2.text= dr.Item(0).ToString
  End if


Estranha forma de vida que tem a capacidade de transformar comandos em mensagens de erro.

ndsotware.org

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