Bonjour,
Je ne comprend pas pourquoi j'ai cette erreur. Est ce du a la base de donné ???
Il me le fait sur COMMAND.Connection = MysqlConn
Une piste ?
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50 Imports MySql.Data.MySqlClient Public Class Producto Dim MysqlConn As MySqlConnection Dim COMMAND As MySqlCommand Dim dr As MySqlDataReader Private Sub Producto_Load(sender As Object, e As EventArgs) Handles MyBase.Load MysqlConn = New MySqlConnection MysqlConn.ConnectionString = "server=localhost;userid=root;password=root;database=database;Convert Zero Datetime=True" End Sub Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click If TextBox2.Text = "" Then MessageBox.Show("Falta Introducir el Nombre de Producto") ElseIf TextBox3.Text = "" Then MessageBox.Show("Falta Introducir el Tipo de Producto") ElseIf TextBox4.Text = "" Then MessageBox.Show("Falta Introducir la Referencia de Producto") Else Try MysqlConn.Open() COMMAND.Connection = MysqlConn COMMAND.CommandType = CommandType.Text COMMAND.CommandText = "select * from database.Productos where id = '" & TextBox1.Text & "'" dr = COMMAND.ExecuteReader If dr.HasRows Then MsgBox("DNI DUPLICADO !", MsgBoxStyle.Critical) Me.Show() MysqlConn.Close() Else MysqlConn.Close() MysqlConn.Open() COMMAND.CommandText = "insert into xCantera.Productos (nombre,tipo,ref) values ('" & TextBox2.Text & "','" & TextBox3.Text & "','" & TextBox4.Text & "')" COMMAND.ExecuteReader() MsgBox("Producto Guardado") Controls.Clear() InitializeComponent() Producto_Load(Me, Nothing) End If Finally MysqlConn.Dispose() End Try End If End Sub End Class
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