//创建一个方法
private void IsNULL()
{
if (txtEmail.Text.Trim() == "" || txtPwd.Text.Trim() == "")
{
MessageBox.Show("用户名或密码不能为空!", "提示");
}
else
{
string EmailName = txtEmail.Text;
string Pwd = txtPwd.Text;
bool ISOK = false;
foreach (LoginInfo item in array)
{
if (item != null)
{
if (item._email == EmailName && item._password == Pwd)
{
this.Hide();
ISOK = true;
//出现主窗体
FrmMain fm = new FrmMain();
fm.lblName.Text = "欢迎," + item._name;
fm.Show();
break;
}
}
}
if (ISOK == false)
{
txtPwd.Text = "";
txtPwd.Focus();
}
}
}
//------------------------------------------------------------------------------------------------------
//----------------------------Encrypt Password----------------------------------------------------------
/*public static string MD5Hash(string input)
* {
* StringBuilder hash = new StringBuilder();
* MD5CryptoServiceProvider md5provider = new MD5CryptoServiceProvider();
* byte[] bytes = md5provider.ComputeHash(new UTF8Encoding().GetBytes(input));
*
* for (int i = 0; i < bytes.Length; i++)
* {
* hash.Append(bytes[i].ToString("x2")+"b");
* }
* return hash.ToString();
* }*/
//------------------------------------------------------------------------------------------------------
//----------------------------------LOGIN---------------------------------------------------------------------------
private void button1_Click(object sender, EventArgs e)
{
ID_USER = getID(txtUser.Text, FrmMain.MD5Hash(txtPass.Text));
Perm = getPer(txtUser.Text, FrmMain.MD5Hash(txtPass.Text));
if ((txtUser.Text == "Admin") && (txtPass.Text == "123456"))
{
FrmMain Fmain = new FrmMain();
this.Hide();
Fmain.ShowDialog();
}
else
{
FrmMain.con1.Open();
}
String query = @"(SELECT * FROM USER1 WHERE MaNV='" + txtUser.Text + "' AND Pass='******')";
SqlDataAdapter sda = new SqlDataAdapter(query, FrmMain.con1);
DataTable dt = new DataTable();
sda.Fill(dt);
if (dt.Rows.Count == 1)
{
FrmMain FMain = new FrmMain();
this.Hide();
FMain.Show();
}
else
{
MessageBox.Show("Check User and Pass. Please!!!!!");
}
FrmMain.con1.Close();
}
private void button1_Click(object sender, EventArgs e)
{
//非空验证;
if ((this.tbemail.Text == null || this.tbemail.Text == "") || (this.textBox1.Text == null || this.textBox1.Text == ""))
{
MessageBox.Show("邮箱和密码不允许为空。", "提示");
}
else
{
string userName = tbemail.Text;
string pwd = textBox1.Text;
bool isOK = false;
foreach (LoginInfo item in array)
{
if (item != null)
{
if (item.Email == userName && item.Password == pwd)
{
label2.Visible = false;
isOK = true;
FrmMain fm = new FrmMain();
fm.lblName.Text = "欢迎," + item.Name;
fm.Show();
break;
}
}
}
if (isOK == false)
{
label2.Visible = true;
textBox1.Text = "";
textBox1.Focus();
}
}
}