Comment puis-je charger les images de Server distant dans une gagnette C # DataTable C # une exception de 404

    FileStream fs = new FileStream(imagepath, FileMode.Open, FileAccess.Read);

    //Initialize a byte array with size of stream
    byte[] imgByteArr = new byte[fs.Length];

    //Read data from the file stream and put into the byte array
    fs.Read(imgByteArr, 0, Convert.ToInt32(fs.Length));

    //Close a file stream
    fs.Close();

    //assign to dt particular column imageByteArr
Hope this will help you

Je suppose qu'il s'agit d'une appliçant de foem. Vous pouvez essayer quelque chose comme celui-ci décrit dans Cette question a >:

 foreach (DataRow row in t.Rows)
{
                HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(row["uri"].ToString());
                myRequest.Method = "GET";
                HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();
                System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(myResponse.GetResponseStream());
                myResponse.Close();

                row["Img"] = bmp;
}

    Imports System 
 Imports System.Runtime.InteropServices
Imports System.Security.Principal  Imports System.Security.Permissions  Public Class Form1  <DllImport("advapi32.DLL", SetLastError:=True)> _  Public Shared Function LogonUser(ByVal lpszUsername As String, ByVal lpszDomain As String, _ 
        ByVal lpszPassword As String, ByVal dwLogonType As Integer, ByVal dwLogonProvider As Integer, _ 
        ByRef phToken As IntPtr) As Integer  End Function  Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click 
        Dim admin_token As IntPtr 
        Dim wid_current As WindowsIdentity = WindowsIdentity.GetCurrent() 
        Dim wid_admin As WindowsIdentity = Nothing 
        Dim wic As WindowsImpersonationContext = Nothing 
        Try 

            If LogonUser("Local Admin name", "Local computer name", "pwd", 9, 0, admin_token) <> 0 Then 
                wid_admin = New WindowsIdentity(admin_token) 
                wic = wid_admin.Impersonate() 

// inside this scope you can access remote PC please note that path shouldn't contain : instead of : use $ sign
              FileStream fs = new FileStream(imagepath, FileMode.Open, FileAccess.Read);

    //Initialize a byte array with size of stream
    byte[] imgByteArr = new byte[fs.Length];

    //Read data from the file stream and put into the byte array
    fs.Read(imgByteArr, 0, Convert.ToInt32(fs.Length));

    //Close a file stream
    fs.Close();

            Else 
               //custom message
            End If 
        Catch se As System.Exception 
            Dim ret As Integer = Marshal.GetLastWin32Error() 
            MessageBox.Show(ret.ToString(), "Error code: " + ret.ToString()) 
            MessageBox.Show(se.Message) 
        Finally 
            If wic IsNot Nothing Then 
                wic.Undo() 
            End If 
        End Try  
        End Sub  
        End Class
Try this Sir please vote if its working thank you