private void 退出登录ToolStripMenuItem_Click(object sender, EventArgs e)
{
QuestionListForm.Close();
var childForm = new Main {
MdiParent = this, WindowState = FormWindowState.Maximized
};
childForm.Show();
Main = childForm;
loginMenuItem.Enabled = true;
logoutMenuItem.Enabled = false;
}
private void btnLogin_Click(object sender, EventArgs e)
{
lblHint1.Text = lblHint2.Text = "";
if (string.IsNullOrWhiteSpace(tbName.Text))
{
lblHint1.Text = @"用户名不能为空";
if (string.IsNullOrWhiteSpace(tbPwd.Text))
{
lblHint2.Text = @"密码不能为空";
}
return;
}
var dt = SqlHelper.ExecuteDataTable("select * from admin where UNAME=@name",
new SqlParameter {
ParameterName = "@name", Value = tbName.Text.Trim()
});
if (dt.Rows.Count > 0)
{
if (string.Equals(dt.Rows[0]["PASSWORD"].ToString(), tbPwd.Text.GetMd5(), StringComparison.CurrentCultureIgnoreCase))
{
((MDIParent)Owner).Main.Close();
var form = new QuestionListForm {
MdiParent = Owner, WindowState = FormWindowState.Maximized, Text = tbName.Text.Trim()
};
Owner.Size = form.Size;
Owner.Height += 20;
form.Show();
((MDIParent)Owner).QuestionListForm = form;
((MDIParent)Owner).LogoutMenuItem.Enabled = true;
((MDIParent)Owner).LoginMenuItem.Enabled = false;
Close();
}
else
{
lblHint2.Text = @"密码错误";
}
}
else
{
lblHint1.Text = @"用户不存在";
}
}
