async Task ListAllUsers()
{
string strError = "";
this.EnableControls(false);
try
{
this.listView1.Items.Clear();
int start = 0;
while (true)
{
var result = await this.Connection.GetUsers("*", start, 100);
if (result.Value == -1)
{
strError = result.ErrorInfo;
goto ERROR1;
}
if (result.Users.Count == 0)
{
break;
}
start += result.Users.Count;
foreach (User user in result.Users)
{
#if NO
ListViewItem item = new ListViewItem();
item.SubItems.Add(user.userName);
item.SubItems.Add(user.department);
item.SubItems.Add(user.rights);
this.listView1.Items.Add(item);
#endif
ChangeItem(null, user);
}
}
return;
}
catch (AggregateException ex)
{
strError = MessageConnection.GetExceptionText(ex);
goto ERROR1;
}
catch (Exception ex)
{
strError = "ListAllUsers() 出现异常: " + ex.Message;
}
finally
{
this.EnableControls(true);
}
ERROR1:
this.Invoke((Action)(() =>
{
MessageBox.Show(this, strError);
}
));
}
async Task NewUser()
{
string strError = "";
UserDialog dlg = new UserDialog();
dlg.Font = this.Font;
dlg.ShowDialog(this);
if (dlg.DialogResult == System.Windows.Forms.DialogResult.Cancel)
{
return;
}
List <User> users = new List <User>();
User user = dlg.UserItem;
users.Add(user);
this.EnableControls(false);
try
{
MessageResult result = await this.Connection.SetUsers("create", users);
if (result.Value == -1)
{
strError = result.ErrorInfo;
goto ERROR1;
}
}
catch (AggregateException ex)
{
strError = MessageConnection.GetExceptionText(ex);
goto ERROR1;
}
catch (Exception ex)
{
strError = "NewUser() 出现异常: " + ex.Message;
goto ERROR1;
}
finally
{
this.EnableControls(true);
}
// 更新显示
ListViewItem item = ChangeItem(null, user);
this.listView1.SelectedItems.Clear();
item.Selected = true;
this.Changed = true;
return;
ERROR1:
this.Invoke((Action)(() =>
{
MessageBox.Show(this, strError);
}
));
}
async Task DeleteUser()
{
string strError = "";
if (this.listView1.SelectedItems.Count == 0)
{
strError = "尚未选定要删除的事项";
goto ERROR1;
}
{
DialogResult result = MessageBox.Show(this,
"确实要删除选定的 " + this.listView1.SelectedItems.Count.ToString() + " 个用户?",
"UserManageDialog",
MessageBoxButtons.YesNo,
MessageBoxIcon.Question,
MessageBoxDefaultButton.Button2);
if (result != DialogResult.Yes)
{
return;
}
}
List <User> users = new List <User>();
foreach (ListViewItem item in this.listView1.SelectedItems)
{
User user = (User)item.Tag;
users.Add(user);
}
this.EnableControls(false);
try
{
MessageResult result = await this.Connection.SetUsers("delete", users);
if (result.Value == -1)
{
strError = result.ErrorInfo;
goto ERROR1;
}
}
catch (AggregateException ex)
{
strError = MessageConnection.GetExceptionText(ex);
goto ERROR1;
}
catch (Exception ex)
{
strError = "DeleteUser() 出现异常: " + ex.Message;
goto ERROR1;
}
finally
{
this.EnableControls(true);
}
foreach (ListViewItem item in this.listView1.SelectedItems)
{
this.listView1.Items.Remove(item);
}
this.Changed = true;
return;
ERROR1:
this.Invoke((Action)(() =>
{
MessageBox.Show(this, strError);
}
));
}
async Task ModifyUser()
{
string strError = "";
if (this.listView1.SelectedItems.Count == 0)
{
strError = "尚未选定要修改的事项";
goto ERROR1;
}
ListViewItem item = this.listView1.SelectedItems[0];
UserDialog dlg = new UserDialog();
dlg.Font = this.Font;
dlg.ChangeMode = true;
dlg.UserItem = (User)item.Tag;
dlg.ShowDialog(this);
if (dlg.DialogResult == System.Windows.Forms.DialogResult.Cancel)
{
return;
}
if (dlg.Changed == false && dlg.ChangePassword == false)
{
MessageBox.Show(this, "没有发生修改");
return;
}
List <User> users = new List <User>();
User user = dlg.UserItem;
users.Add(user);
this.EnableControls(false);
try
{
if (dlg.Changed == true)
{
MessageResult result = await this.Connection.SetUsers("change", users);
if (result.Value == -1)
{
strError = result.ErrorInfo;
// 如果这里返回出错仅仅是因为权限不够，还需要尝试继续执行后面的修改密码的操作
if (result.String != "Denied")
{
goto ERROR1;
}
}
}
if (dlg.ChangePassword)
{
MessageResult result = await this.Connection.SetUsers("changePassword", users);
if (result.Value == -1)
{
if (string.IsNullOrEmpty(strError) == false)
{
strError += "; ";
}
strError += result.ErrorInfo;
goto ERROR1;
}
}
if (string.IsNullOrEmpty(strError) == false)
{
goto ERROR1;
}
}
catch (AggregateException ex)
{
strError = MessageConnection.GetExceptionText(ex);
goto ERROR1;
}
catch (Exception ex)
{
strError = "ModifyUser() 出现异常: " + ex.Message;
goto ERROR1;
}
finally
{
this.EnableControls(true);
}
ChangeItem(item, dlg.UserItem);
this.Changed = true;
return;
ERROR1:
this.Invoke((Action)(() =>
{
MessageBox.Show(this, strError);
}
));
}