RadUpload for ASP.NET
Table of Contents
  • At a Glance
  • Getting Started
  • How RadUpload compares to standard HTML File Upload
  • Licensing
  • Installation and deployment
  • DNN
  • Standards Compliance
  • AJAX Support
  • Uploading Files
  • Progress Monitoring
  • Configuration
  • Localization
  • Skins
  • Frequently Asked Questions
  • Troubleshooting
  • Client-side Programming
  • Client-side API Reference
  • API Reference
    • Telerik.WebControls Namespace
      • RadProgressArea Class
      • RadProgressContext Class
      • RadProgressManager Class
      • RadUpload Class
      • RadUploadContext Class
      • UploadedFile Class
      • UploadedFileEventArgs Class
      • ValidateFileEventArgs Class
      • UploadedFileEventHandler Delegate
      • ValidateFileEventHandler Delegate
      • ControlObjectsVisibility Enumeration
      • ProgressIndicators Enumeration
    • Telerik.WebControls.Design.Upload Namespace
    • Telerik.WebControls.RadUploadUtils Namespace
    • Telerik.WebControls.Upload Namespace
  • Get More Help
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ValidatingFile Event
See Also  Example
Telerik.WebControls Namespace > RadUpload Class : ValidatingFile Event


Occurs before the internal validation of every file in the UploadedFiles collection.  

Example

This example demostrates how to implement custom validation for specific file type.  
 

 

Namespace: Telerik.WebControls
Assembly: RadUpload (in RadUpload.dll)

Syntax

Visual Basic (Declaration) 
Public Event ValidatingFile() As ValidateFileEventHandler
Visual Basic (Usage)Copy Code
Dim instance As RadUpload
Dim handler As ValidateFileEventHandler
 
AddHandler instance.ValidatingFile, handler
C# 
public event ValidateFileEventHandler ValidatingFile()
 

Example

This example demostrates how to implement custom validation for specific file type.
Visual BasicCopy Code
Private Sub RadUpload1_ValidatingFile(ByVal sender As Object, ByVal e As WebControls.ValidateFileEventArgs) Handles RadUpload1.ValidatingFile
    If e.UploadedFile.GetExtension.ToLower = ".zip" Then
        Dim maxZipFileSize As Integer = 10000000 '~10MB
        If e.UploadedFile.ContentLength > maxZipFileSize Then
            e.IsValid = False
        End If
        'The zip files are not validated for file size, extension and mime type
        e.SkipInternalValidation = True
    End If
End Sub
C#Copy Code
private void RadUpload1_ValidatingFile(object sender, ValidateFileEventArgs e)
{
   if (e.UploadedFile.GetExtension().ToLower() == ".zip")
   {
       int maxZipFileSize = 10000000; //~10MB
       if (e.UploadedFile.ContentLength > maxZipFileSize)
       {
           e.IsValid = false;
       }
       //The zip files are not validated for file size, extension and content type
       e.SkipInternalValidation = true;
   }
}
    

Remarks

To skip the internal validation of the file, set e.SkipInternalValidation = true.

Requirements

Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

See Also