Converting object to byte array

[Guest]

Hi, I experience some troubles trying to convert an object,returned by a DataTable for a field value to its actual representation of Byte[]. The field values in a DataTable as we all know are returned as instance of the Object class and it is up to the developer to cast it to its actual type.
In my case i access a field of type text in the database and obviously the driver converts it into byte array. Unfortunaletly a construct like this
Array arr = (Array)dt.Rows[0]["FieldName"
always results in a CastNotValidException
However the dt.Rows[0]["FieldName"].ToString() returns "System.Bute[]", which actually prompts for the actual type
Any hints on how to solve this problem appreciated
Thanks in advance
Svetoslav

 

[Justin Rogers]

byte[] fieldXXXValue = (byte[]) dt.Rows[0]["FieldXXXName"];

Thought I'm not sure why you can't cast it all the way down to an array.


--
Justin Rogers
DigiTec Web Consultants, LLC.
Blog: http://weblogs.asp.net/justin_rogers

Hi, I experience some troubles trying to convert an object,returned by a

DataTable for a field value to its actual representation of Byte[]. The field
values in a DataTable as we all know are returned as instance of the Object
class and it is up to the developer to cast it to its actual type.

In my case i access a field of type text in the database and obviously the

driver converts it into byte array. Unfortunaletly a construct like this:

Array arr = (Array)dt.Rows[0]["FieldName"]
always results in a CastNotValidException.
However the dt.Rows[0]["FieldName"].ToString() returns "System.Bute[]", which

actually prompts for the actual type.

 

[Guest]

I tried this approach first and it did not go through either. It resulted with the same exception
Svetoslav