Operator Overloading?

[JP Wrye]

Hello All,

I'm wondering if the following is possible. I'm explicitly overloading
SqlParameter, but get the following error when I try to convert to and from
arrays.

Cannot convert type 'EntityPersistence.DataFieldParameter[]' to
'System.Data.SqlClient.SqlParameter[]'

Thanks,
JP

[Patrik Löwendahl [C# MVP]]

How does your overloading code look like?

Sounds like you're trying to do an invalid cast in the operator logic.

--
Patrik Löwendahl [C# MVP]
www.cshrp.net - "Elegant code by witty programmers"

"JP Wrye" <jp*****@hotmail.com> wrote in message
news:%2****************@TK2MSFTNGP12.phx.gbl...

Hello All,

I'm wondering if the following is possible. I'm explicitly overloading SqlParameter, but get the following error when I try to convert to and from arrays.

Cannot convert type 'EntityPersistence.DataFieldParameter[]' to
'System.Data.SqlClient.SqlParameter[]'

Thanks,
JP

[JP Wrye]

static public explicit operator SqlParameter(DataFieldParameter
dataFieldParameter)

{

SqlParameter _sqlParameter = new SqlParameter();

_sqlParameter.DbType = dataFieldParameter.DbType;

_sqlParameter.Direction = dataFieldParameter.Direction;

_sqlParameter.ParameterName = dataFieldParameter.ParameterName;

_sqlParameter.Precision = dataFieldParameter.Precision;

_sqlParameter.Scale = dataFieldParameter.Scale;

_sqlParameter.Size = dataFieldParameter.Size;

_sqlParameter.SourceColumn = dataFieldParameter.SourceColumn;

_sqlParameter.SourceVersion = dataFieldParameter.SourceVersion;

_sqlParameter.Value = dataFieldParameter.Value;

return _sqlParameter;

}

----------------------------------------------------------------------------
-------

DataFieldParameter _dataFieldParameter = new DataFieldParameter();

DataFieldParameter[] _dataFieldParameters =
EntityBuilder.GetParameters(obeject);

SqlParameter _sqlParameter = (SqlParameter)_dataFieldParameter; //Works.

SqlParameter[] _sqlParameter = (SqlParameter[])_dataFieldParameters;
//Doesn't Work.



"Patrik Löwendahl [C# MVP]" <pa**************@csharpsweden.com> wrote in
message news:es**************@TK2MSFTNGP12.phx.gbl...

How does your overloading code look like?

Sounds like you're trying to do an invalid cast in the operator logic.

--
Patrik Löwendahl [C# MVP]
www.cshrp.net - "Elegant code by witty programmers"

"JP Wrye" <jp*****@hotmail.com> wrote in message
news:%2****************@TK2MSFTNGP12.phx.gbl...

Hello All,

I'm wondering if the following is possible. I'm explicitly

overloading

SqlParameter, but get the following error when I try to convert to and

from

arrays.

Cannot convert type 'EntityPersistence.DataFieldParameter[]' to
'System.Data.SqlClient.SqlParameter[]'

Thanks,
JP

[Jon Skeet [C# MVP]]

JP Wrye <jp*****@hotmail.com> wrote:

I'm wondering if the following is possible. I'm explicitly overloading
SqlParameter, but get the following error when I try to convert to and from
arrays.

Cannot convert type 'EntityPersistence.DataFieldParameter[]' to
'System.Data.SqlClient.SqlParameter[]'

Just because a conversion is possible between type A and type B doesn't
mean there's a conversion between A[] and B[]. You'll need to create a
new array and copy the entries from one into the other.

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

[Patrik Löwendahl [C# MVP]]

The type SqlParameter and SqlParameter[] is not treated as equal types.

SqlParameter[] is an array with ElementType of SqlParameter, that differs
from the type SqlParameter.

You will have to explicitly write code for that conversion.

--
Patrik Löwendahl [C# MVP]
www.cshrp.net - "Elegant code by witty programmers"
"JP Wrye" <jp*****@hotmail.com> wrote in message
news:OZ**************@TK2MSFTNGP09.phx.gbl...

static public explicit operator SqlParameter(DataFieldParameter
dataFieldParameter)

{

SqlParameter _sqlParameter = new SqlParameter();

_sqlParameter.DbType = dataFieldParameter.DbType;

_sqlParameter.Direction = dataFieldParameter.Direction;

_sqlParameter.ParameterName = dataFieldParameter.ParameterName;

_sqlParameter.Precision = dataFieldParameter.Precision;

_sqlParameter.Scale = dataFieldParameter.Scale;

_sqlParameter.Size = dataFieldParameter.Size;

_sqlParameter.SourceColumn = dataFieldParameter.SourceColumn;

_sqlParameter.SourceVersion = dataFieldParameter.SourceVersion;

_sqlParameter.Value = dataFieldParameter.Value;

return _sqlParameter;

}

-------------------------------------------------------------------------- -- -------

DataFieldParameter _dataFieldParameter = new DataFieldParameter();

DataFieldParameter[] _dataFieldParameters =
EntityBuilder.GetParameters(obeject);

SqlParameter _sqlParameter = (SqlParameter)_dataFieldParameter; //Works.

SqlParameter[] _sqlParameter = (SqlParameter[])_dataFieldParameters;
//Doesn't Work.



"Patrik Löwendahl [C# MVP]" <pa**************@csharpsweden.com> wrote in
message news:es**************@TK2MSFTNGP12.phx.gbl...

How does your overloading code look like?

Sounds like you're trying to do an invalid cast in the operator logic.

--
Patrik Löwendahl [C# MVP]
www.cshrp.net - "Elegant code by witty programmers"

"JP Wrye" <jp*****@hotmail.com> wrote in message
news:%2****************@TK2MSFTNGP12.phx.gbl...

Hello All,

I'm wondering if the following is possible. I'm explicitly

overloading

SqlParameter, but get the following error when I try to convert to and

from

arrays.

Cannot convert type 'EntityPersistence.DataFieldParameter[]' to
'System.Data.SqlClient.SqlParameter[]'

Thanks,
JP