.NET time sinkholes?

int? myIntValue =
    dataReader.IsDBNull("ColumnName") ? null :
    dataReader.GetInt32("ColumnName");

int? myIntValue;

if(dataReader.IsDBNull("ColumnName"))
{
    myIntValue = null;
}
else
{
    myIntValue = dataReader.GetInt32("ColumnName");
}

int? myIntValue =
    dataReader.IsDBNull("ColumnName") ? (int?)null :
    (int?)dataReader.GetInt32("ColumnName");

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var adEntry = new DirectoryEntry("LDAP://...");
adEntry.DoSomething(); // Throws meaningless COMException! Sometimes a different one!

adEntry = new DirectoryEntry("ldap://...");
adEntry.DoSomething(); // Works.

DateTime someDateTime = new DateTime(2008, 1, 1);

for i = 1 to nGrids
    grids[i] = new Grid(templateGrid)    // assuming copy constructor semantics
delete templateGrid

for i = 1 to nGrids
    grids[i] = templateGrid.Clone()
delete templateGrid