public static frmPos CreateForm()
{
//判断是否存在该窗体,或时候该字窗体是否被释放过,如果不存在该窗体,则 new 一个字窗体
if (_instance == null || _instance.IsDisposed)
{
_instance = new frmPos();
}
return(_instance);
}
private void btnBegin_Click(object sender, EventArgs e)
{
try
{
_service.BeginWork(ContextService.CurrentAccount, ContextService.StoreId, ContextService.PosId);
//收银前台
frmPos posForm = frmPos.CreateForm();
posForm.Show();
var mainForm = frmMain.CreateForm();
mainForm.Hide();
this.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "系统消息", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
}
private void toolStripButton1_Click(object sender, EventArgs e)
{
//收银台
// 检查当前班次收银员账户是否一致
var worker = _workService.GetWorking(ContextService.StoreId, _setting.PosId);
if (worker == null)
{
ShowWorkForm();
MessageBox.Show("请先上班再开始销售", "系统消息", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
if (worker.CreatedBy != ContextService.CurrentAccount.Id)
{
ShowWorkForm();
MessageBox.Show("请先交接班再开始销售", "系统消息", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
frmPos posForm = frmPos.CreateForm();
posForm.Show();
this.Hide();
}
public void ShowPosForm()
{
frmPos posForm = frmPos.CreateForm();
posForm.Show();
}