在我的ViewModel中，我打电话给NotifyMe()，它执行以下操作：
SqlDependency.Start(ConfigurationManager.ConnectionStrings["StringConnexion"].ConnectionString);
await _connection.OpenAsync();
using (command = new SqlCommand(
"SELECT [NUM_DRC] ,[MAT_EMP] ,[NUM_RC] ,[DEBUT_DRC] ,[FIN_DRC],[DATE_ETAB_DRC] ,[MOTIF_DRC] ,[STATUS_DRC] FROM [dbo].[DEMANDE_RECUPERATION] WHERE [STATUS_DRC] = 'En attente' ",
_connection))
{
dependency = new SqlDependency(command);
dependency.OnChange += OnDependencyChange;
using (reader = await command.ExecuteReaderAsync())
{
while (reader.Read())
{
RcCount++;
}
}
}
using (command2 = new SqlCommand("SELECT[NUM_DC] ,[MAT_EMP] ,[NUM_CONGE] ,[DATE_ETAB_DC] ,[DC_DEBUT] ,[DC_FIN] ,[LIEU_JOUISSANCE] ,[STATUS_DC] FROM[dbo].[DEMANDE_CONGE] WHERE [STATUS_DC] = 'En attente'",
_connection))
{
dependency2 = new SqlDependency(command2);
dependency2.OnChange += OnDependencyChange2;
using (reader2 = await command2.ExecuteReaderAsync())
{
while (reader2.Read())
{
DcCount++;
}
}
}
using (command3 = new SqlCommand("SELECT[NUM_DAS],[MAT_EMP],[NUM_AS],[DATE_ETAB_DAS],[DEBUT_DAS],[FIN_DAS],[MOTIF_DAS],[STATUS_DAS] FROM[dbo].[DEMANDE_DE_SORTIE] WHERE [STATUS_DAS] = 'En attente' ",
_connection))
{
dependency3 = new SqlDependency(command3);
dependency3.OnChange += OnDependencyChange3;
using (reader3 = await command3.ExecuteReaderAsync())
{
while (reader3.Read())
{
AsCount++;
}
}
}
using (command4 = new SqlCommand("SELECT [NUM_DAB] ,[NUM_ABS],[MAT_EMP],[DATE_ETAB_DAB],[DEBUT_DAB],[FIN_DAB],[MOTIF_DAB],[STATUS_DAB] FROM [dbo].[DEMANDE_ABSENCE] WHERE [STATUS_DAB] = 'En attente' ",
_connection))
{
dependency4 = new SqlDependency(command4);
dependency4.OnChange += OnDependencyChange4;
using (reader4 = await command4.ExecuteReaderAsync())
{
while (reader4.Read())
{
AbsCount++;
}
}
}
using (command5 = new SqlCommand("SELECT [NUM_DMD],[NUM_MD],[MAT_EMP],[DATE_ETAB_DMD],[DEBUT_DMD],[FIN_DMD],[MOTIF_DMD],[STATUS_DMD] FROM [dbo].[DEMANDE_MD] WHERE [STATUS_DMD] = 'En attente' ",
_connection))
{
dependency5 = new SqlDependency(command5);
dependency5.OnChange += OnDependencyChange5;
using (reader5 = await command5.ExecuteReaderAsync())
{
while (reader5.Read())
{
MdCount++;
}
}
}
在我的计算机上，一切运行正常。
我试图在朋友的笔记本电脑上运行相同的应用程序，该应用程序打开1秒钟，然后关闭，没有错误消息或其他任何内容。如果我删除了NotifyMe()，它就可以正常工作。
在这种情况下，问题出在哪里？由于没有Visual Studio，因此无法在该PC上进行调试，在这种情况下，您如何建议我进行调试？