public void TestSingleValueConversion()
{
var native = new NATIVE_ENUMCOLUMN
{
columnid = 1,
err = (int)JET_wrn.ColumnSingleValue,
cbData = 3,
pvData = new IntPtr(4),
};
var managed = new JET_ENUMCOLUMN();
managed.SetFromNativeEnumColumn(native);
Assert.AreEqual <uint>(1, managed.columnid.Value);
Assert.AreEqual(JET_wrn.ColumnSingleValue, managed.err);
Assert.AreEqual(3, managed.cbData);
Assert.AreEqual(new IntPtr(4), managed.pvData);
}
public void TestMultiValueConversion()
{
var managed = new JET_ENUMCOLUMN();
unsafe
{
var columnvalues = stackalloc NATIVE_ENUMCOLUMNVALUE[2];
var native = new NATIVE_ENUMCOLUMN
{
columnid = 1,
err = (int)JET_wrn.Success,
cEnumColumnValue = 3,
rgEnumColumnValue = columnvalues,
};
managed.SetFromNativeEnumColumn(native);
}
Assert.AreEqual <uint>(1, managed.columnid.Value);
Assert.AreEqual(JET_wrn.Success, managed.err);
Assert.AreEqual(3, managed.cEnumColumnValue);
Assert.AreEqual(null, managed.rgEnumColumnValue);
}
public static unsafe extern int JetEnumerateColumns(
IntPtr sesid,
IntPtr tableid,
uint cEnumColumnId,
NATIVE_ENUMCOLUMNID* rgEnumColumnId,
out uint pcEnumColumn,
out NATIVE_ENUMCOLUMN* prgEnumColumn,
JET_PFNREALLOC pfnRealloc,
IntPtr pvReallocContext,
uint cbDataMost,
uint grbit);
