//Zurück zu Form3
private void buttonZurück_Click(object sender, EventArgs e)
{
Form frm1 = new Zeiterfassungstool.Form3();
frm1.Show();
this.Hide();
}
private void button1_Click(object sender, EventArgs e)
{
int Anzahl = 0;
OleDbConnection con = new OleDbConnection();
OleDbCommand cmd = new OleDbCommand();
OleDbDataReader reader;
con.ConnectionString = "Provider = Microsoft.ACE.OLEDB.12.0; " + "Data Source = Zeiterfassung.accdb";
cmd.Connection = con;
cmd.CommandText = "Select Anmeldename, Passwort from Benutzer";
con.Open();
reader = cmd.ExecuteReader();
while (reader.Read())
{
if ((Convert.ToString(reader["Anmeldename"]) == TBAnmelden.Text) && (Convert.ToString(reader["Passwort"]) == TBPasswort.Text))
{
this.Hide();
Form Frm3 = new Zeiterfassungstool.Form3();
Frm3.Show();
this.Hide();
Anzahl++;
}
}
if (Anzahl == 0)
{
string message = "Die von Ihnen eingegebenen Daten sind leider ungültig";
string caption = "Falscheingabe";
MessageBoxButtons buttons = MessageBoxButtons.OK;
DialogResult result;
result = MessageBox.Show(message, caption, buttons);
}
con.Close();
}