运营商＆＃39;＆amp;＆＃39;没有为字符串插入定义和键入＆＃39; byte（）＆＃39;在vb.net中

Question

我尝试使用TCP发送数据，但错误显示运算符＆＃39;＆amp;＆＃39;未定义字符串插入和键入＆＃39; byte（）＆＃39;。

Dim ms1 As New MemoryStream
Dim ms2 As New MemoryStream
Dim data1 As Byte()
Dim data2 As Byte()

PictureBox1.Image.Save(ms1, ImageFormat.Jpeg)
PictureBox2.Image.Save(ms2, ImageFormat.Jpeg)

data1 = ms1.ToArray()
data2 = ms2.ToArray()

Dim sendbytes() As Byte = System.Text.Encoding.ASCII.GetBytes(Passenger_idTextBox.Text & "," & Last_nameTextBox.Text & "," & First_nameTextBox.Text & "," & Middle_nameTextBox.Text & "," & StreetTextBox.Text & "," & BarangayTextBox.Text & "," & CityTextBox.Text & "," & Contact_celfoneTextBox.Text & "," & Contact_landlineTextBox.Text & "," & Contact_emailTextBox.Text & "," & AgeTextBox.Text & "," & ComboBox1.ValueMember & "," & ProfessionTextBox.Text & "," & data1 & "," & data2)
TCPClientz.Client.Send(sendbytes)

Answer 1

data1和data2是字节数组，而不是字符串。 你不能使用＆amp;连接字节数组。 这是一种如何连接字节数组的方法：

Dim x As Byte() = Convert.FromBase64String("test")
Dim y As Byte() = Convert.FromBase64String("test")
Dim z As Byte()
Dim barr As New Collections.Generic.List(Of Byte)(x)
barr.AddRange(y)
z = barr.ToArray