本文整理汇总了C#中TypeUsage.TryGetPrecision方法的典型用法代码示例。如果您正苦于以下问题：C# TypeUsage.TryGetPrecision方法的具体用法？C# TypeUsage.TryGetPrecision怎么用？C# TypeUsage.TryGetPrecision使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类TypeUsage的用法示例。
在下文中一共展示了TypeUsage.TryGetPrecision方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: GetEdmType
//.........这里部分代码省略.........
case "ntext":
case "xml":
newPrimitiveTypeKind = PrimitiveTypeKind.String;
isUnbounded = true;
isUnicode = true;
isFixedLen = false;
break;
case "binary":
newPrimitiveTypeKind = PrimitiveTypeKind.Binary;
isUnbounded = !storeType.TryGetMaxLength(out maxLength);
isFixedLen = true;
break;
case "varbinary":
newPrimitiveTypeKind = PrimitiveTypeKind.Binary;
isUnbounded = !storeType.TryGetMaxLength(out maxLength);
isFixedLen = false;
break;
case "varbinary(max)":
case "image":
newPrimitiveTypeKind = PrimitiveTypeKind.Binary;
isUnbounded = true;
isFixedLen = false;
break;
case "timestamp":
case "rowversion":
return TypeUsage.CreateBinaryTypeUsage(edmPrimitiveType, true, 8);
case "float":
case "real":
return TypeUsage.CreateDefaultTypeUsage(edmPrimitiveType);
case "decimal":
case "numeric":
{
byte precision;
byte scale;
if (storeType.TryGetPrecision(out precision)
&& storeType.TryGetScale(out scale))
{
return TypeUsage.CreateDecimalTypeUsage(edmPrimitiveType, precision, scale);
}
else
{
return TypeUsage.CreateDecimalTypeUsage(edmPrimitiveType);
}
}
case "money":
return TypeUsage.CreateDecimalTypeUsage(edmPrimitiveType, 19, 4);
case "smallmoney":
return TypeUsage.CreateDecimalTypeUsage(edmPrimitiveType, 10, 4);
case "datetime":
case "datetime2":
case "smalldatetime":
return TypeUsage.CreateDateTimeTypeUsage(edmPrimitiveType, null);
case "date":
return TypeUsage.CreateDefaultTypeUsage(edmPrimitiveType);
case "time":
return TypeUsage.CreateTimeTypeUsage(edmPrimitiveType, null);
case "datetimeoffset":
return TypeUsage.CreateDateTimeOffsetTypeUsage(edmPrimitiveType, null);
default:
throw new NotSupportedException(Strings.ProviderDoesNotSupportType(storeTypeName));
}
Debug.Assert(
newPrimitiveTypeKind == PrimitiveTypeKind.String || newPrimitiveTypeKind == PrimitiveTypeKind.Binary,
"at this point only string and binary types should be present");
switch (newPrimitiveTypeKind)
{
case PrimitiveTypeKind.String:
if (!isUnbounded)
{
return TypeUsage.CreateStringTypeUsage(edmPrimitiveType, isUnicode, isFixedLen, maxLength);
}
else
{
return TypeUsage.CreateStringTypeUsage(edmPrimitiveType, isUnicode, isFixedLen);
}
case PrimitiveTypeKind.Binary:
if (!isUnbounded)
{
return TypeUsage.CreateBinaryTypeUsage(edmPrimitiveType, isFixedLen, maxLength);
}
else
{
return TypeUsage.CreateBinaryTypeUsage(edmPrimitiveType, isFixedLen);
}
default:
throw new NotSupportedException(Strings.ProviderDoesNotSupportType(storeTypeName));
}
}示例2: GetStoreType
public override TypeUsage GetStoreType(TypeUsage edmType)
{
Throw.IfNull(edmType, "edmType");
Debug.Assert(edmType.EdmType.BuiltInTypeKind == BuiltInTypeKind.PrimitiveType);
var primitiveType = edmType.EdmType as PrimitiveType;
if (primitiveType == null)
{
throw new ArgumentException(Strings.ProviderDoesNotSupportType(edmType.EdmType.Name));
}
var facets = edmType.Facets;
switch (primitiveType.PrimitiveTypeKind)
{
case PrimitiveTypeKind.Boolean:
return TypeUsage.CreateDefaultTypeUsage(StoreTypeNameToStorePrimitiveType["bit"]);
case PrimitiveTypeKind.Byte:
return TypeUsage.CreateDefaultTypeUsage(StoreTypeNameToStorePrimitiveType["tinyint"]);
case PrimitiveTypeKind.Int16:
return TypeUsage.CreateDefaultTypeUsage(StoreTypeNameToStorePrimitiveType["smallint"]);
case PrimitiveTypeKind.Int32:
return TypeUsage.CreateDefaultTypeUsage(StoreTypeNameToStorePrimitiveType["int"]);
case PrimitiveTypeKind.Int64:
return TypeUsage.CreateDefaultTypeUsage(StoreTypeNameToStorePrimitiveType["bigint"]);
case PrimitiveTypeKind.Geography:
case PrimitiveTypeKind.GeographyPoint:
case PrimitiveTypeKind.GeographyLineString:
case PrimitiveTypeKind.GeographyPolygon:
case PrimitiveTypeKind.GeographyMultiPoint:
case PrimitiveTypeKind.GeographyMultiLineString:
case PrimitiveTypeKind.GeographyMultiPolygon:
case PrimitiveTypeKind.GeographyCollection:
return GetStorePrimitiveTypeIfPostSql9("geography", edmType.EdmType.Name, primitiveType.PrimitiveTypeKind);
case PrimitiveTypeKind.Geometry:
case PrimitiveTypeKind.GeometryPoint:
case PrimitiveTypeKind.GeometryLineString:
case PrimitiveTypeKind.GeometryPolygon:
case PrimitiveTypeKind.GeometryMultiPoint:
case PrimitiveTypeKind.GeometryMultiLineString:
case PrimitiveTypeKind.GeometryMultiPolygon:
case PrimitiveTypeKind.GeometryCollection:
return GetStorePrimitiveTypeIfPostSql9("geometry", edmType.EdmType.Name, primitiveType.PrimitiveTypeKind);
case PrimitiveTypeKind.Guid:
return TypeUsage.CreateDefaultTypeUsage(StoreTypeNameToStorePrimitiveType["uniqueidentifier"]);
case PrimitiveTypeKind.Double:
return TypeUsage.CreateDefaultTypeUsage(StoreTypeNameToStorePrimitiveType["float"]);
case PrimitiveTypeKind.Single:
return TypeUsage.CreateDefaultTypeUsage(StoreTypeNameToStorePrimitiveType["real"]);
case PrimitiveTypeKind.Decimal: // decimal, numeric, smallmoney, money
{
byte precision;
if (!edmType.TryGetPrecision(out precision))
{
precision = 18;
}
byte scale;
if (!edmType.TryGetScale(out scale))
{
scale = 0;
}
var tu = TypeUsage.CreateDecimalTypeUsage(StoreTypeNameToStorePrimitiveType["decimal"], precision, scale);
return tu;
}
case PrimitiveTypeKind.Binary: // binary, varbinary, varbinary(max), image, timestamp, rowversion
{
var isFixedLength = null != facets[FixedLengthFacetName].Value && (bool)facets[FixedLengthFacetName].Value;
var f = facets[MaxLengthFacetName];
var isMaxLength = f.IsUnbounded || null == f.Value || (int)f.Value > binaryMaxSize;
var maxLength = !isMaxLength ? (int)f.Value : Int32.MinValue;
TypeUsage tu;
if (isFixedLength)
{
tu = TypeUsage.CreateBinaryTypeUsage(
StoreTypeNameToStorePrimitiveType["binary"], true, (isMaxLength ? binaryMaxSize : maxLength));
}
else
{
if (isMaxLength)
{
if (_version != SqlVersion.Sql8)
{
tu = TypeUsage.CreateBinaryTypeUsage(StoreTypeNameToStorePrimitiveType["varbinary(max)"], false);
Debug.Assert(tu.Facets[MaxLengthFacetName].Description.IsConstant, "varbinary(max) is not constant!");
}
else
//.........这里部分代码省略.........
示例3: GetParameterPrecision
// <summary>
// Returns SqlParameter.Precision where the type facet exists. Otherwise,
// returns null.
// </summary>
private static byte? GetParameterPrecision(TypeUsage type, byte? defaultIfUndefined)
{
byte precision;
if (type.TryGetPrecision(out precision))
{
return precision;
}
else
{
return defaultIfUndefined;
}
}