Ich erstelle eine einfache WPF-Anwendung mit einer SQL-Verbindung. Das Problem ist, dass wenn ich das Programm debuggen scheint es OK (keine Fehler), aber ich kann meine Daten in der Datenbank nicht sehen.Kann meine Daten in Tabellen nicht sehen
private void button1_Click(object sender, RoutedEventArgs e)
{
System.Data.SqlClient.SqlConnection conn = new System.Data.SqlClient.SqlConnection();
conn.ConnectionString = @"DataSource=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\MIKE.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True";
try
{
SqlCommand SqlCmd = new System.Data.SqlClient.SqlCommand("INSERT INTO [Customer](FirstName,LastName) VALUES(@FirstName,@LastName)", conn);
conn.Open();
// Insert code to process data.
SqlCmd.Parameters.AddWithValue("@FirstName", CUCFirstName.Text);
SqlCmd.Parameters.AddWithValue("@LastName", CUClastName.Text);
SqlCmd.ExecuteNonQuery();
}
catch (SqlException ex)
{
MessageBox.Show(ex.Message, ex.Number.ToString());
}
finally
{
conn.Close();
}
}
und mein XAML-Code
<Grid>
<Button Content="Add" Height="66" HorizontalAlignment="Left" Margin="324,233,0,0"
Name="button1" VerticalAlignment="Top"
Width="135" Click="button1_Click" />
<TextBox Height="36" HorizontalAlignment="Left" Margin="74,32,0,0" Name="CUCFirstName"
VerticalAlignment="Top" Width="242">
</TextBox>
<TextBox Height="39" HorizontalAlignment="Left" Margin="74,74,0,0" Name="CUClastName"
VerticalAlignment="Top" Width="242">
</TextBox>
<Label Content="First Name" Height="33" HorizontalAlignment="Left" Margin="324,32,0,0"
Name="label1" VerticalAlignment="Top" Width="151" />
<Label Content="Last Name" Height="34" HorizontalAlignment="Left" Margin="324,72,0,0"
Name="label2" VerticalAlignment="Top" Width="151" />
</Grid>
Die Datenbank wird in den Ordner Debug \ –