private void LoginBtn_Click(object sender, EventArgs e) { if (ISCB.Checked) { if (DataSourceTxt.Text == "") { DataSourceErorLable.Visible = true; } else { DataSourceErorLable.Visible = false; } if (DatabaseTxt.Text == "") { DataBaseErorLable.Visible = true; } else { DataBaseErorLable.Visible = false; } if (DataSourceErorLable.Visible || DataBaseErorLable.Visible) { MessageBox.Show("Feilds with * are mendatory"); } else { asb.Append("Data Source=" + DataSourceTxt.Text + ";Initial Catalog" + DatabaseTxt.Text + ";Integrated Security = true;MultipleActiveResultSets=True"); File.WriteAllText(MainClass.path + "\\cnt", asb.ToString()); DialogResult dr = MessageBox.Show("Settings Saved Successfully", "Success", MessageBoxButtons.OK, MessageBoxIcon.Information); if (dr == DialogResult.OK) { LogIn log = new LogIn(); MainClass.ShowWindow(log, this, MDI.ActiveForm); } } } else { if (DataSourceTxt.Text == "") { DataSourceErorLable.Visible = true; } else { DataSourceErorLable.Visible = false; } if (DatabaseTxt.Text == "") { DataBaseErorLable.Visible = true; } else { DataBaseErorLable.Visible = false; } if (UsernameTxt.Text == "") { UserNameErorLable.Visible = true; } else { UserNameErorLable.Visible = false; } if (PasswordTxt.Text == "") { PassWordErorLable.Visible = true; } else { PassWordErorLable.Visible = false; } if (DataSourceErorLable.Visible || DataBaseErorLable.Visible || UserNameErorLable.Visible || PassWordErorLable.Visible) { MessageBox.Show("Feilds with * are mendatory"); } else { asb.Append("Data Source=" + DataSourceTxt.Text + ";Initial Catalog" + DatabaseTxt.Text + ";User ID=" + UsernameTxt.Text + "Password = "******"MultipleActiveResultSets=True"); File.WriteAllText(MainClass.path + "\\cnt", sb.ToString()); DialogResult dr = MessageBox.Show("Settings Saved Successfully", "Success", MessageBoxButtons.OK, MessageBoxIcon.Information); if (dr == DialogResult.OK) { LogIn log = new LogIn(); MainClass.ShowWindow(log, this, MDI.ActiveForm); } } } }