Hi,
I am trying to retrieve an image from the SQL database to my form (VB.NET) on a Picturebox.
See code below:
I receive the error message:
the datatype is Image - at the SQL DB.
Thanks
I am trying to retrieve an image from the SQL database to my form (VB.NET) on a Picturebox.
See code below:
Code:
Private Sub BtnRetrieve_Click(sender As Object, e As EventArgs) Handles BtnRetrieve.Click
Dim conn As SqlConnection = GetDbConnection()
Dim command As New SqlCommand("SELECT * FROM dbo.tbltenants WHERE nationalID=@nationalid", conn)
command.Parameters.Add("@nationalid", SqlDbType.VarChar).Value = TxtNationalID.Text
Dim table As New DataTable()
Dim adapter As New SqlDataAdapter(Command)
adapter.Fill(table)
TxtNationalID.Text = table.Rows(0)(0).ToString()
TxtFName.Text = table.Rows(0)(1).ToString()
TxtLName.Text = table.Rows(0)(2).ToString()
If table.Rows.Count() <= 0 Then
MessageBox.Show("No image available for this National ID")
Else
Dim img() As Byte
img = table.Rows(0)(3)
Dim ms As New MemoryStream(img)
PictureBox1.Image = Image.FromStream(ms)
End If
End SubCode:
System.InvalidCastException: 'Unable to cast object of type 'System.String' to type 'System.Byte[]'.'Thanks