private void PasswordTextBox_TextChanged(object sender, EventArgs e) { if (PasswordTextBox.Text != string.Empty) { PasswordErrorProvider.Clear(); } else { PasswordErrorProvider.SetError(PasswordTextBox, "Password Required"); } }
private void btnLogIn_Click(object sender, EventArgs e) { if (string.IsNullOrWhiteSpace(this.txtUserName.Text)) { UserNameErrorProvider.SetError(txtUserName, "Username empty!"); txtUserName.Focus(); } else if (string.IsNullOrWhiteSpace(this.txtPassword.Text)) { PasswordErrorProvider.SetError(txtPassword, "Password empty!"); txtPassword.Focus(); } else { UserNameErrorProvider.Clear(); PasswordErrorProvider.Clear(); try { clsUtility.ExecuteSQLQuery(" SELECT * FROM Users WHERE UserName = '******' AND Password = '******' "); if (clsUtility.sqlDT.Rows.Count > 0) { clsUtility.UserID = clsUtility.sqlDT.Rows[0]["USER_ID"].ToString(); clsUtility.UserName = clsUtility.sqlDT.Rows[0]["UserName"].ToString(); clsUtility.UsersPrivilege = clsUtility.sqlDT.Rows[0]["Privilege"].ToString(); if (chkRememberMe.Checked) { Properties.Settings.Default.App_UserName = txtUserName.Text; Properties.Settings.Default.App_UserPassword = txtPassword.Text; } else { Properties.Settings.Default.App_UserName = null; Properties.Settings.Default.App_UserPassword = null; } Properties.Settings.Default.App_UserRemember = chkRememberMe.Checked; Properties.Settings.Default.Save(); frmMDIParent frmMDIParent = new frmMDIParent(); frmMDIParent.Show(); this.Hide(); } else { lblWaring.Visible = true; lblWaring.Text = "No such user."; } } catch (Exception) { lblWaring.Visible = true; lblWaring.Text = "Error executing sql statement."; } } }