}
public byte Scale {
- get { return scale; }
+ get {
+ if (TypeName == "decimal" || TypeName == "numeric") {
+ if (scale == 0 && !Convert.IsDBNull(Value)) {
+ int[] arr = Decimal.GetBits (
+ Convert.ToDecimal(Value));
+ scale = (byte)((arr[3]>>16) & (int)0xFF);
+ }
+ }
+ return scale;
+ }
set { scale = value; }
}
internal string Prepare ()
{
- StringBuilder result = new StringBuilder (String.Format ("{0} {1}", ParameterName, TypeName));
- switch (TypeName) {
+ string typeName = TypeName;
+
+ if (typeName == "varbinary") {
+ int size = Size;
+ if (size <= 0) {
+ size = GetActualSize ();
+ }
+
+ if (size > 8000) {
+ typeName = "image";
+ }
+ }
+
+ StringBuilder result = new StringBuilder (String.Format ("{0} {1}", ParameterName, typeName));
+ switch (typeName) {
case "decimal":
case "numeric":
- result.Append (String.Format ("({0},{1})", Precision, Scale));
+ // msdotnet sends a default precision of 28
+ result.Append (String.Format ("({0},{1})",
+ (Precision == (byte)0 ? (byte)28 : Precision), Scale));
break;
case "varchar":
case "varbinary":
- result.Append (String.Format ("({0})", Size > 0 ? Size : GetActualSize ()));
+ //A size of 0 is not allowed in declarations.
+ int size = Size;
+ if (size <= 0) {
+ size = GetActualSize ();
+ if (size <= 0)
+ size = 1;
+ }
+ result.Append (String.Format ("({0})", size));
break;
case "nvarchar":
result.Append (String.Format ("({0})", Size > 0 ? Size : 4000));