Dynamic Casting in CSharp

[Magnus.Moraberg]

Hi,

I have the following which is giving me false when I expected true -

Table.Rows[i][j] == oleDbDataReader.GetValue(i)

oleDbDataReader.GetValue(i) is of type object so I need to cast it to
its correct type before doing the comparison, but how do I do that?

Thanks,

Barry.

[glennanthonyb]

The following may work, but I'd double check the MSDN docs so you understand
the way the Object.Equals works for reference and value types.

Table.Rows[i][j].Equals( oleDbDataReader.GetValue(i) )

Glenn

<Ma*************@gmail.comwrote in message
news:48**********************************@m73g2000 hsh.googlegroups.com...

Hi,

I have the following which is giving me false when I expected true -

Table.Rows[i][j] == oleDbDataReader.GetValue(i)

oleDbDataReader.GetValue(i) is of type object so I need to cast it to
its correct type before doing the comparison, but how do I do that?

Thanks,

Barry.

[Jon Skeet [C# MVP]]

On May 14, 10:34 am, [e-mail] wrote:

I have the following which is giving me false when I expected true -

Table.Rows[i][j] == oleDbDataReader.GetValue(i)

oleDbDataReader.GetValue(i) is of type object so I need to cast it to
its correct type before doing the comparison, but how do I do that?

Casts give the *compiler* more information. If you don't know that
information at compile-time, you basically can't help the compiler.

I'd suggest using object.Equals(Table.Rows[i][j],
oleDbDataReader.GetValue(i))

Jon