private bool method_2(IObjectClass iobjectClass_1)
{
bool flag;
try
{
IEnumSchemaLockInfo info;
(iobjectClass_1 as ISchemaLock).GetCurrentSchemaLocks(out info);
info.Reset();
for (ISchemaLockInfo info2 = info.Next(); info2 != null; info2 = info.Next())
{
if (info2.SchemaLockType == esriSchemaLock.esriExclusiveSchemaLock)
{
goto Label_0041;
}
}
return(true);
Label_0041:
flag = false;
}
catch
{
flag = false;
}
return(flag);
}
public bool IsFeatureClassLockable(IFeatureClass checkFeatureClass)
{
IObjectClass objectClass = checkFeatureClass as IObjectClass;
if (objectClass == null)
{
return(false);
}
ISchemaLock schemaLock = (ISchemaLock)objectClass;
if (schemaLock == null)
{
return(false);
}
// Get an enumerator over the current schema locks.
IEnumSchemaLockInfo enumSchemaLockInfo = null;
schemaLock.GetCurrentSchemaLocks(out enumSchemaLockInfo);
// Iterate through the locks.
ISchemaLockInfo schemaLockInfo = null;
int lockCount = 0;
while ((schemaLockInfo = enumSchemaLockInfo.Next()) != null)
{
lockCount++;
Trace.WriteLine(string.Format("{0} : {1} : {2}", schemaLockInfo.TableName,
schemaLockInfo.UserName, schemaLockInfo.SchemaLockType));
}
// Note: 1 sharedLock for this process is normal, so we test for > 1 lock
return(lockCount < 2);
}
/// <summary>Method to perform the actual schema lock</summary>
/// <remarks>
/// - If the schema is already locked by a different user, an exception is thrown with lock info (name / table)
/// - If the schema is already locked by the current user, no lock is performed
/// - When an exclusive lock is successfully established, the lock is added to the list of managed locks
/// for demotion at disposal
/// </remarks>
public void LockDatasetSchema(ITable fc)
{
ResourceManager resourceManager = new ResourceManager(
"ESRI.ArcGIS.OSM.OSMClassExtension.OSMClassExtensionStrings", this.GetType().Assembly);
ISchemaLock schemaLock = fc as ISchemaLock;
if (schemaLock == null)
{
throw new ArgumentNullException("schemaLock");
}
// make sure that are not any existing exclusive locks
IEnumSchemaLockInfo currentlyExistingLocks;
try
{
schemaLock.GetCurrentSchemaLocks(out currentlyExistingLocks);
}
catch (Exception ex)
{
throw new ApplicationException(resourceManager.GetString("OSMClassExtensionManager_Reading_Lock_Exception"));
}
bool gdbAlreadyLockedbyUser = false;
ISchemaLockInfo schemaLockInfo = null;
while ((schemaLockInfo = currentlyExistingLocks.Next()) != null)
{
if (schemaLockInfo.SchemaLockType == esriSchemaLock.esriExclusiveSchemaLock &&
!String.IsNullOrEmpty(schemaLockInfo.UserName))
{
throw new ApplicationException(string.Format(
resourceManager.GetString("OSMClassExtensionManager_Exclusive_Lock_Exception"),
schemaLockInfo.TableName, schemaLockInfo.UserName));
}
else if (schemaLockInfo.SchemaLockType == esriSchemaLock.esriExclusiveSchemaLock)
{
gdbAlreadyLockedbyUser = true;
break;
}
}
if (!gdbAlreadyLockedbyUser)
{
schemaLock.ChangeSchemaLock(esriSchemaLock.esriExclusiveSchemaLock);
}
_managedLocks.Add(schemaLock);
}