private async void Button1_Click(object sender, EventArgs e)
{
//Cria uma thread
new Task(() => {
//Sleep de 1s
System.Threading.Thread.Sleep(1000);
//Manda executar um metodo na thread em que a frm2 está rodando (principal)
frm2.Invoke((MethodInvoker) delegate {
frm2.Text = "Teste";
});
}).Start(); //Inicia a execução da thread criada la em cima
}
public Class1(Form2 f)
{
a = f;
SqlConnectionStringBuilder builder = new SqlConnectionStringBuilder();
builder.DataSource = "ANTONINA";
builder.InitialCatalog = "testowy";
builder.IntegratedSecurity = true;
con = new SqlConnection(builder.ConnectionString);
DataSet ds = new DataSet();
con.InfoMessage += new SqlInfoMessageEventHandler(Connection_InfoMessage);
Task task = Task.Factory.StartNew(() =>
{
using (SqlCommand cmd = new SqlCommand())
{
cmd.Connection = con;
cmd.CommandText = "dbo.test";
cmd.CommandTimeout = 120;
cmd.Connection.Open();
using (SqlDataAdapter sa = new SqlDataAdapter(cmd))
{
Task.Delay(300).Wait();
sa.Fill(ds);
cmd.Connection.Close();
a.Invoke((MethodInvoker) delegate()
{
a.Close();
});
}
}
}
);
}
