i want to make an application, where user can upload their images and display it in Image control without physically saving it in a folder on disk. after done build the cone, an error show on this line.
Dim base64String As String = Convert.ToBase64String(bytes, 0, bytes.Length)
Error show on the attachment below.
Here my full code :
Partial Class _Default Inherits System.Web.UI.Page Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click Dim fs As System.IO.Stream = FileUpload1.PostedFile.InputStream Dim br As New System.IO.BinaryReader(fs) Dim bytes As Byte = br.ReadBytes(CType(fs.Length, Integer)) Dim base64String As String = Convert.ToBase64String(bytes, 0, bytes.Length) Image1.ImageUrl = "data:image/png;based64," & base64string Image1.Visible = True End Sub End Class
Can anyone help me to solve this problem?