private void btLogin_Click(object sender, EventArgs e)
{
string userName = tbUserName.Text.Trim(),
passwd = tbPasswd.Text.Trim(),
userType = combUserType.SelectedItem.ToString().Trim();
if (userName == "" || userName == null || passwd == "" || passwd == null || userType == "" || userType == null)
{
MessageBox.Show("不能有空！", "提醒", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
else
{
int n = 0;
switch (userType)
{
case "管理员":
n = new Maticsoft.BLL.Administrators().GetRecordCount(String.Format("userName = '******' and passwd = '{1}'", userName, passwd));
break;
case "学生":
n = new Maticsoft.BLL.Students().GetRecordCount(String.Format("ID = '{0}' and passwd = '{1}'", userName, passwd));
Maticsoft.Common.StaticDataClass.loginStudentID = userName;
break;
case "教师":
n = new Maticsoft.BLL.Teachers().GetRecordCount(String.Format("ID = '{0}' and passwd = '{1}'", userName, passwd));
Maticsoft.Common.StaticDataClass.loginTeacherID = userName;
break;
}
if (n > 0)
{
MessageBox.Show("登录成功！", "信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
Maticsoft.Common.StaticDataClass.userType = userType;
this.Hide();
new Main().ShowDialog(this);
}
else
{
MessageBox.Show("用户名或密码错误！", "提醒", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
}
}
public void LoadData_Admin()
{
dsAdmin = new Maticsoft.BLL.Administrators().GetList("");
dsAdmin.Tables["ds"].Columns["ID"].ColumnName = "ID";
dsAdmin.Tables["ds"].Columns["userName"].ColumnName = "用户名";
dgvAdmin.DataSource = dsAdmin.Tables["ds"];
int columnNumber = dgvAdmin.ColumnCount;
foreach (DataGridViewColumn col in dgvAdmin.Columns)
{
col.DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter;
col.SortMode = DataGridViewColumnSortMode.NotSortable;
col.FillWeight = 100 / columnNumber;
}
dgvAdmin.ColumnHeadersDefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter;
dgvAdmin.AllowUserToAddRows = false;
dgvAdmin.RowHeadersVisible = false;
dgvAdmin.ReadOnly = true;
}