SqlGeometry.Deserialize 方法
Returns a constructed SqlGeometry from an internal SQL Server format for spatial data.
命名空间： Microsoft.SqlServer.Types
程序集： Microsoft.SqlServer.Types（在 Microsoft.SqlServer.Types.dll 中）
语法
声明
Public Shared Function Deserialize ( _
bytes As SqlBytes _
) As SqlGeometry
用法
Dim bytes As SqlBytes
Dim returnValue As SqlGeometry
returnValue = SqlGeometry.Deserialize(bytes)
public static SqlGeometry Deserialize(
SqlBytes bytes
)
public:
static SqlGeometry^ Deserialize(
SqlBytes^ bytes
)
static member Deserialize :
bytes:SqlBytes -> SqlGeometry
public static function Deserialize(
bytes : SqlBytes
) : SqlGeometry
参数
- bytes
类型：System.Data.SqlTypes.SqlBytes
A SqlBytes that specifies the spatial data being sent over the network.
返回值
类型：Microsoft.SqlServer.Types.SqlGeometry
A SqlGeometry instance that represents the constructed geometry object being sent over the network.
注释
This can be used for reading bytes sent from the server through SqlDataReader. Useful for sending spatial data over the network in conjunction with Serialize().
示例
using (SqlConnection conn = new SqlConnection("..."))
{
SqlCommand cmd = new SqlCommand("SELECT [SpatialData] FROM [SpatialTable]", conn);
conn.Open();
using (SqlDataReader rdr = cmd.ExecuteReader())
{
while (rdr.Read())
{
SqlGeometry g = SqlGeometry.Deserialize(reader.GetSqlBytes(0).Stream));
// do some spatial work
}
}