private void BtnUploadAvatar_Click(object sender, EventArgs e)
{
if (TxtID.Text.Trim().Equals(string.Empty))
{
MessageBox.Show("请先输入账户名", "警告", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
if (OpenAvatar.ShowDialog() == DialogResult.OK)
{
PicAvatar.Image = Image.FromFile(OpenAvatar.FileName);
string ext = Pic.GetExtension(PicAvatar.Image);
Directory.CreateDirectory(Environment.CurrentDirectory + "\\UsersAvatars");
//将保存的图片的位置暂存, 在下面保存到User里面
strAvatarFileName = Environment.CurrentDirectory + "\\UsersAvatars\\" +
TxtID.Text.Trim() + ext;
PicAvatar.Image.Save(strAvatarFileName);
}
}
private void BtnLogin_Click(object sender, EventArgs e)
{
bool isRet = false;
string strID = string.Empty;
string strPwd = string.Empty;
DataSet ds = new DataSet();
SQLExecute excute = new SQLExecute();
strID = TxtID.Text.Trim();
strPwd = TxtPwd.Text.Trim();
ds = excute.UserLogin(strID);
isRet = PasswordStorage.VerifyPassword(strPwd, ds.Tables[0].Rows[0][0].ToString());
if (isRet)
{
MessageBox.Show("登录成功!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
//FormMain FrmM = new FormMain();
//FrmM.LblShowUserName.Text = "欢迎" + TxtID.Text.Trim();
LblChange.ChangeLbl("欢迎您: " + TxtID.Text.Trim());
//发现这边要是用show方法的话, main窗体show不出来, 就尝试在另一个线程里运行
//new System.Threading.Thread(() =>
// {
// Application.Run(FrmM);
// }).Start();
ds.Clear();
ds = excute.GetUserAvatarFileName(TxtID.Text.Trim());
Image image = null;
//从保存用户头像的文件夹加载头像, 如果没有就从数据库拉取, 并将其以用户名+格式的形式保存
try
{
image = Image.FromFile(ds.Tables[0].Rows[0][0].ToString());
}
catch (Exception)
{
byte[] bytes = null;
ds = excute.GetUserAvatar(TxtID.Text.Trim());
bytes = (byte[])ds.Tables["temp"].Rows[0][0];
MemoryStream ms = new MemoryStream(bytes);
image = Image.FromStream(ms);
string ext = Pic.GetExtension(image);
//如果没有此目录的话, 就创建
Directory.CreateDirectory(Environment.CurrentDirectory + "\\UsersAvatars");
string strFileName = Environment.CurrentDirectory + "\\UsersAvatars\\" + TxtID.Text.Trim() + ext;
image.Save(strFileName);
//并将此目录更新到数据库, 以便下次从本地加载头像
excute.UpdateAvatarFileName(TxtID.Text.Trim(), strFileName);
}
ImageChange.ImageChange(image);
Close();
}
else
{
MessageBox.Show("登录失败!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}