protected override void OnDataBinding(EventArgs e)
{
base.OnDataBinding(e);
//check if field has a value
if (FieldValue == null)
{
return;
}
// when there is already a value in the FieldValue
// then show the icon and label/hyperlink
PlaceHolder1.Visible = true;
// get the file extension
String extension = FieldValueString.Substring(
FieldValueString.LastIndexOf(".") + 1,
FieldValueString.Length - (FieldValueString.LastIndexOf(".") + 1));
// get attributes
var fileUploadAttributes = MetadataAttributes.OfType <FileUploadAttribute>().FirstOrDefault();
String fileUrl = fileUploadAttributes.FileUrl;
String displayImageUrl = fileUploadAttributes.DisplayImageUrl;
String displayImageType = fileUploadAttributes.DisplayImageType;
String filePath;
// check the file exists else throw validation error
if (fileUploadAttributes != null)
{
filePath = String.Format(fileUrl, FieldValueString);
}
else
{
// if attribute not set use default
filePath = String.Format("~/files/{0}", FieldValueString);
}
// if either hyperlinks are disabled or the
// file does not exist then hide the link
if (fileUploadAttributes.DisableHyperlink | !File.Exists(Server.MapPath(filePath)))
{
Label1.Text = FieldValueString;
HyperLink1.Visible = false;
}
else
{
Label1.Visible = false;
HyperLink1.Text = FieldValueString;
HyperLink1.NavigateUrl = filePath;
}
// check file exists on file system
if (!File.Exists(Server.MapPath(filePath)))
{
CustomValidator1.ErrorMessage = String.Format("{0} - plik nie istnieje", FieldValueString);
CustomValidator1.IsValid = false;
}
}
private static string SerializeFieldValue(FieldValue value)
{
return(value switch
{
FieldValueString str => JsonSerializer.Serialize(str.StringValue),
FieldValueNumber number => JsonSerializer.Serialize(number.DoubleValue),
FieldValueBoolean b => JsonSerializer.Serialize(b.BoolValue),
_ => throw new NotImplementedException()
});
protected override void OnDataBinding(EventArgs e)
{
base.OnDataBinding(e);
//check if field has a value
if (FieldValue == null)
{
return;
}
// when there is already a value in the FieldValue then show the icon and label/hyperlink
Label1.Visible = true;
var fileName = String.IsNullOrEmpty(FieldValueString)
? String.Empty
: FieldValueString.Replace("&", "&");
HyperLink1.Text = "Загрузить файл";
HyperLink1.NavigateUrl = Global.Context.StorageUrl + fileName;
}
protected override void OnDataBinding(EventArgs e)
{
base.OnDataBinding(e);
//check if field has a value
if (FieldValue == null)
{
return;
}
// when there is already a value in the FieldValue
// then show the icon and label/hyperlink
PlaceHolder1.Visible = true;
// get the file extension
String extension = FieldValueString.Substring(
FieldValueString.LastIndexOf(".") + 1,
FieldValueString.Length - (FieldValueString.LastIndexOf(".") + 1));
// get attributes
var fileUploadAttributes = MetadataAttributes.OfType <FileUploadAttribute>().FirstOrDefault();
String fileUrl = fileUploadAttributes.FileUrl;
String displayImageUrl = fileUploadAttributes.DisplayImageUrl;
String displayImageType = fileUploadAttributes.DisplayImageType;
String filePath;
// check the file exists else throw validation error
if (fileUploadAttributes != null)
{
filePath = String.Format(fileUrl, FieldValueString);
}
else
{
// if attribute not set use default
filePath = String.Format("~/files/{0}", FieldValueString);
}
// show the relavent control depending on metadata
if (fileUploadAttributes.HyperlinkRoles.Length > 0)
{
// if there are roles then check:
// if user is in one of the roles supplied
// or if the hyperlinks are disabled
// or if the file does not exist
// then hide the link
if (!fileUploadAttributes.HasRole(Roles.GetRolesForUser()) || fileUploadAttributes.DisableHyperlink || !File.Exists(Server.MapPath(filePath)))
{
Label1.Text = FieldValueString;
HyperLink1.Visible = false;
}
else
{
Label1.Visible = false;
HyperLink1.Text = FieldValueString;
HyperLink1.NavigateUrl = filePath;
}
}
else
{
// if either hyperlinks are disabled or the
// file does not exist then hide the link
if (fileUploadAttributes.DisableHyperlink || !File.Exists(Server.MapPath(filePath)))
{
Label1.Text = FieldValueString;
HyperLink1.Visible = false;
}
else
{
Label1.Visible = false;
HyperLink1.Text = FieldValueString;
HyperLink1.NavigateUrl = filePath;
}
}
// check file exists on file system
if (!File.Exists(Server.MapPath(filePath)))
{
CustomValidator1.ErrorMessage = String.Format("{0} does not exist", FieldValueString);
CustomValidator1.IsValid = false;
}
// show the icon
if (!String.IsNullOrEmpty(extension))
{
// set the file type image
if (!String.IsNullOrEmpty(displayImageUrl))
{
Image1.ImageUrl = String.Format(displayImageUrl, extension + "." + displayImageType);
}
else
{
// if attribute not set the use default
Image1.ImageUrl = String.Format("~/images/{0}", extension + "." + displayImageType);
}
Image1.AlternateText = extension + " file";
// if you apply dimentions from DD Futures
var imageFormat = MetadataAttributes.OfType <ImageFormatAttribute>().FirstOrDefault();
if (imageFormat != null)
{
// if either of the dims is 0 don't set it
// this will mean that the aspect will remain locked
if (imageFormat.DisplayWidth != 0)
{
Image1.Width = imageFormat.DisplayWidth;
}
if (imageFormat.DisplayHeight != 0)
{
Image1.Height = imageFormat.DisplayHeight;
}
}
}
else
{
// if file has no extension then hide image
Image1.Visible = false;
}
}
