UploadControlValidationSettings.MaxFileSize Property

Specifies the maximum size of the uploaded file.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v24.2.dll

NuGet Package: DevExpress.Web

Declaration

C#

[DefaultValue(0L)]
public virtual long MaxFileSize { get; set; }

VB.NET

<DefaultValue(0L)>
Public Overridable Property MaxFileSize As Long

Property Value

Type	Default	Description
Int64	0	The maximum file size in bytes. 0, if the maximum size is not limited.

Property Paths

You can access this nested property as listed below:

Library	Object Type	Path to MaxFileSize
ASP.NET MVC Extensions	UploadControlBinderSettings	.ValidationSettings .MaxFileSize
	UploadControlSettings	.ValidationSettings .MaxFileSize
ASP.NET Web Forms Controls	ASPxUploadControl	.ValidationSettings .MaxFileSize

Remarks

Use the MaxFileSize property to limit the uploaded file size. If the uploaded file exceeds the property value, the ASPxUploadControl displays an error description. Use the MaxFileSizeErrorText property to customize the error text.

ASPX

<dx:ASPxUploadControl ID="ASPxUploadControl1" runat="server" OnFileUploadComplete="uc_FileUploadComplete">
    <ValidationSettings AllowedFileExtensions=".txt,.jpg,.jpe,.jpeg,.doc" MaxFileSize="1000000" 
        FileDoesNotExistErrorText="A file cannot be found." 
        GeneralErrorText="File uploading fails due to an external error that doesn't relate to the ASPxUploadControl's functionality." 
        MaxFileSizeErrorText="Uploaded file size exceeds the maximum file size." 
        NotAllowedFileExtensionErrorText="The file extension is not allowed.">
        <ErrorStyle BackColor="Yellow" ForeColor="Black" />
    </ValidationSettings>
</dx:ASPxUploadControl>

C#

protected void uc_FileUploadComplete(object sender, DevExpress.Web.FileUploadCompleteEventArgs e) {
    if (e.IsValid) {
        ASPxUploadControl1.SaveAs(MapPath("Images/" + ASPxUploadControl1.FileName));
    }
}

VB.NET

Protected Sub uc_FileUploadComplete(ByVal sender As Object, ByVal e As DevExpress.Web.FileUploadCompleteEventArgs)
    If e.IsValid Then
        ASPxUploadControl1.SaveAs(MapPath("Images/" & ASPxUploadControl1.FileName))
    End If
End Sub

Exception

In the Standard Upload Mode, if the MaxFileSize property value exceeds the value of the Web.config’s MaxRequestLength setting, the following error occurs:

The ValidationSettings.MaxFileSize property’s value exceeds the Web.Config’s maxRequestLength setting. For the ASPxUploadControl’s built-in validation to work correctly, the ValidationSettings.MaxFileSize property should be less than the Web.config’s maxRequestLength setting.

To solve the issue, set the MaxFileSize value less than the MaxRequestLength value or use the Advanced Upload Mode.