[英]Generic read/write to byte array
我希望能夠將通用變量放入字節數組(通過EF將其保存到數據庫)
我這樣嘗試:
public byte[] SerializedParams { get; set; } // property for EF
...
public void Write(params object[] args)
{
var bf = new BinaryFormatter();
using (var ms = new MemoryStream())
{
bf.Serialize(ms, args);
SerializedParams = ms.ToArray();
}
}
public T Read<T>()
{
var byteSize = Marshal.SizeOf(typeof(T));
using (var ms = new MemoryStream())
{
ms.Write(SerializedParams, 0, SerializedParams.Length);
var bf = new BinaryFormatter();
var x = bf.Deserialize(ms); // error here
return (T)x;
}
}
var x = bf.Deserialize(ms); 這行會導致錯誤。 致電后:
qr.Write(5,7,9);
var i1 = qr.Read<int>(); // error here
var i2 = qr.Read<int>();
var i3 = qr.Read<int>();
“解析完成之前遇到的Stream結束。”
怎么了
嘗試將memorystream的position屬性設置為0:
public T Read<T>()
{
var byteSize = Marshal.SizeOf(typeof(T));
using (var ms = new MemoryStream())
{
ms.Write(SerializedParams, 0, SerializedParams.Length);
var bf = new BinaryFormatter();
ms.Position = 0; // this line should do the trick
var x = bf.Deserialize(ms);
return (T)x;
}
}
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