MySQL Bugs: #6428: double type handling in MySqlParameter(string parameterName, object value)

Bug #6428	double type handling in MySqlParameter(string parameterName, object value)
Submitted:	4 Nov 2004 12:21	Modified:	4 Nov 2004 16:48
Reporter:	Vahan Sardaryan
Status:	Closed
Category:	Connector/Net	Severity:	S3 (Non-critical)
Version:	1.0.1	OS:	Microsoft Windows (Windows 2000 SP4)
Assigned to:	Reggie Burnett	Target Version:

Description:
When passing double or float values to MySqlParameter(string parameterName, object value)
constructor, they are not handled correctly. They are being handled as binary values,
causing exception later in MySqlBinary::Serialize() function. 

How to repeat:
Construct a query having double or float parameters using MySqlParameter(string
parameterName, object value) constructor and execute it. Exception will be thrown in
MySqlBinary::Serialize().

Suggested fix:
MySqlParameter(string parameterName, object value) constructor calls SetTypeFromValue
function to recognize parameter type. TypeCode.Double and TypeCode.Single codes are not
handled there, it causes default handling as binary values. The following code may be
added to switch () statement inside the SetTypeFromValue function:

case TypeCode.Double: SetDbType( DbType.Double ); break;
case TypeCode.Single: SetDbType( DbType.Single ); break;

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next release.

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