ASP.NET

Dim fb_LibraryPath As String = Nothing
fb_LibraryPath = Context.Server.MapPath("\Product\images\Library\thumbs\")

Dim diFiles As DirectoryInfo = New DirectoryInfo(fb_LibraryPath)
Dim fileInfo() As FileInfo = diFiles.GetFiles("*.*", SearchOption.TopDirectoryOnly)

If fileInfo.Length() > 0 Then
For idx As Integer = 0 To fileInfo.Length() - 1
   Dim fileName As String = fileInfo(idx).Name
   If Not fileName.ToLower = "thumbs.db" Then
     'Create a image element by code and set the src
   End if

next

YourFunctionToUploadImage()
{
  //Check FileUpload controll has File Or not
  if (ImageFileUploadControll.HasFile)
  { 
         string fileExtention = System.IO.Path.GetExtension(ImageFileUploadControll.FileName);
         //Check For Valid Extension
            if (fileExtention.ToLower() != ".jpg" && fileExtention.ToLower() != ".jpeg" && fileExtention.ToLower() != ".png")
            {
                lblUploadstatus.Text = "Invalid File Choose .jpg/.jpeg/.png/.gif";
            }
            else
            {
                    //check if file already Exists in Folder
                    if (File.Exists(Server.MapPath("~/Folder_Name/" + ImageFileUploadControll.FileName)))
                    {
                        lblUploadstatus.Text = "File Already Exists. Rename filename";
                    }
                    else
                    {
                        //To Save Image To your Specific Location.
                        //srever.mappath takes us to Folder which containing our application
                        ImageFileUploadControll.SaveAs(Server.MapPath("~/Folder_Name/" + ImageFileUploadControll.FileName));
                        lblUploadstatus.Text = "Upload Status : File Uploaded Successfully";
                    } 
            }
            
   }
   else 
   {
      lblUploadstatus.Text = "Please Select File";
   }
}

PageLoadEvent()
{
    //use DirectoryInfo to get all imageFile's Information
    DirectoryInfo dir = new DirectoryInfo(Server.MapPath("~/Folder_Name/"));
    FileInfo[] fi = dir.GetFiles();

    //Now you just need to create new image control each time and add ImageUrl to it
    foreach(FileInfo f in fi)
    {
         string imageUrl = f.ToString();
         Image img = new Image();
         img.ImageUrl = "~/Folder_Name/"+"imageUrl";
    }
}

if (FileUpload1.HasFile)
{
     string fileExtension = Path.GetExtension(FileUpload1.FileName);

      // Checkout proper file
    
    if (fileExtension.ToLower() != ".jpg" && fileExtension.ToLower() != ".jpeg")
    {
         lblMessage.Text = "Only File With .jpg and .jpeg Extension are allowed";
         lblMessage.ForeColor = System.Drawing.Color.Red;
    
    }
    else
    {
          //checkout whether file already exist or not
   
          if (File.Exists(Server.MapPath("~/Uploaded_Image/" + FileUpload1.FileName)))
          {
                lblMessage.Text = "Image Already Exist...Please Select Another Image";
                lblMessage.ForeColor = System.Drawing.Color.Blue;
    
                return;
          }
          else
          {
              // Upload image
           
              FileUpload1.SaveAs(Server.MapPath("~/Uploaded_Image/" + FileUpload1.FileName));
              lblMessage.Text = "File Uploaded Successfully";
              lblMessage.ForeColor = System.Drawing.Color.Green;

           }

      }

    }

   else
   {
         lblMessage.Text = "Please Select File to be uploaded";
         lblMessage.ForeColor = System.Drawing.Color.Red;
   }

1. Can you connect to the server specified in your connection string using sqlcmd[^]?
2. Can you connect using the credentials specified in your connection string?
3. Can you access the database specified in your connection string?
4. Can you access the database using the credentials from your connection string?

<connectionStrings>
    <add name="ApplicationServices" connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|\aspnetdb.mdf;User Instance=true" providerName="System.Data.SqlClient"/>
    <add name="StarfleetAcademyDBConnectionString" connectionString="Data Source=.\SQLEXPRESS;Initial Catalog=StarfleetAcademyDB;Integrated Security=True" providerName="System.Data.SqlClient"/>
  </connectionStrings>

<roleManager enabled="false">
      <providers>
        <clear/>
        <add name="AspNetSqlRoleProvider" type="System.Web.Security.SqlRoleProvider" connectionStringName="ApplicationServices" applicationName="/"/>
        <add name="AspNetWindowsTokenRoleProvider" type="System.Web.Security.WindowsTokenRoleProvider" applicationName="/"/>
      </providers>
    </roleManager>

DRAYKKO wrote:

It can also be caused by the role manager feature not being enabled.

DRAYKKO wrote:

<roleManager enabled="false">

<roleManager enabled="true" defaultProvider="AspNetSqlRoleProvider">
   <providers>
      <clear />
      <add 
         name="AspNetSqlRoleProvider" 
         type="System.Web.Security.SqlRoleProvider" 
         connectionStringName="StarfleetAcademyDBConnectionString" 
         applicationName="/"
      />
   </providers>
</roleManager>