Reference Guide
GdPicture14 Namespace / GdPicturePDF Class / SetTagAttribute Method / SetTagAttribute(Int32,String,String) Method
A unique tag identifier of the tag's tree element to which the new attribute will be attached.
A name of the newly defined attribute to be attached to the specified tag's tree element.
A value of the newly defined attribute as a string, that is to be attached to the specified tag's tree element.
Example





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    SetTagAttribute(Int32,String,String) Method
    In This Topic
    Creates a new attribute for a structure element (tag) specified by its unique (tag's) identifier, that is a part of the document's tag structure tree related to the currently loaded PDF document.

    This attribute consists of a key-value pair: the key is the attribute's name and the value is the attribute's corresponding value. You are allowed to set the attribute's value as a string using this method.

    Syntax
    'Declaration
     
    
    Public Overloads Function SetTagAttribute( _
       ByVal TagID As Integer, _
       ByVal Key As String, _
       ByVal Value As String _
    ) As GdPictureStatus
    public GdPictureStatus SetTagAttribute( 
       int TagID,
       string Key,
       string Value
    )
    public function SetTagAttribute( 
        TagID: Integer;
        Key: String;
        Value: String
    ): GdPictureStatus; 
    public function SetTagAttribute( 
       TagID : int,
       Key : String,
       Value : String
    ) : GdPictureStatus;
    public: GdPictureStatus SetTagAttribute( 
       int TagID,
       string* Key,
       string* Value
    ) 
    public:
    GdPictureStatus SetTagAttribute( 
       int TagID,
       String^ Key,
       String^ Value
    ) 

    Parameters

    TagID
    A unique tag identifier of the tag's tree element to which the new attribute will be attached.
    Key
    A name of the newly defined attribute to be attached to the specified tag's tree element.
    Value
    A value of the newly defined attribute as a string, that is to be attached to the specified tag's tree element.

    Return Value

    A member of the GdPictureStatus enumeration. If the method has been successfully followed, then the return value is GdPictureStatus.OK.

    We strongly recommend always checking this status first.

    Remarks
    This method is only allowed for use with non-encrypted documents.
    Example
    How to set attributes to a newly created tag attached to the underlined text.
    Dim caption As String = "Example: SetTagAttribute"
    Using gdpicturePDF As GdPicturePDF = New GdPicturePDF()
        If (gdpicturePDF.NewPDF(PdfConformance.PDF_UA_1) = GdPictureStatus.OK) AndAlso
           (gdpicturePDF.NewPage(PdfPageSizes.PdfPageSizeA4) = GdPictureStatus.OK) Then
            'This is required to have a valid PDF_UA document.
            gdpicturePDF.SetTitle("My first PDF/UA document")
            Dim fontResName As String = gdpicturePDF.AddTrueTypeFontU("Arial", False, False, True)
            If (gdpicturePDF.GetStat() = GdPictureStatus.OK) AndAlso
               (gdpicturePDF.SetFillColor(Color.Blue) = GdPictureStatus.OK) AndAlso
               (gdpicturePDF.SetTextSize(20) = GdPictureStatus.OK) Then
                Dim tagRootID As Integer = gdpicturePDF.GetTagRootID()
                If (gdpicturePDF.GetStat() = GdPictureStatus.OK) AndAlso
                   (gdpicturePDF.SetLanguage("en-US") = GdPictureStatus.OK) Then
                    Dim tagParagraph As Integer = gdpicturePDF.NewTag(tagRootID, "P")
                    If (gdpicturePDF.GetStat() = GdPictureStatus.OK) AndAlso
                       (gdpicturePDF.SetTagAttribute(tagParagraph, "TextDecorationType", "Underline") = GdPictureStatus.OK) AndAlso
                       (gdpicturePDF.SetTagAttribute(tagParagraph, "LineHeight", 20) = GdPictureStatus.OK) Then
                        If (gdpicturePDF.BeginMarkedContentSequence(tagParagraph, "P") = GdPictureStatus.OK) AndAlso
                           (gdpicturePDF.DrawTextUnderline(fontResName, 20, 700, "This is underlined text in english that is tagged as paragraph!", Color.Aquamarine, 3) = GdPictureStatus.OK) AndAlso
                           (gdpicturePDF.EndMarkedContent() = GdPictureStatus.OK) Then
                            Dim status As GdPictureStatus = gdpicturePDF.SaveToFile("test_tagged.pdf")
                            If status = GdPictureStatus.OK Then
                                MessageBox.Show("Your new PDF document has been successfully created.", caption)
                            Else
                                MessageBox.Show("The file can't be saved. Status: " + status.ToString(), caption)
                            End If
                        Else
                            MessageBox.Show("Creating a tag's content has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption)
                        End If
                    Else
                        MessageBox.Show("The NewTag() or SetTagAttribute() methods have failed with the status: " + gdpicturePDF.GetStat().ToString(), caption)
                    End If
                Else
                    MessageBox.Show("Getting the root or setting the language has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption)
                End If
            Else
                MessageBox.Show("Setting text properties has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption)
            End If
            gdpicturePDF.CloseDocument()
        Else
            MessageBox.Show("The new document can't be created. Status: " + gdpicturePDF.GetStat().ToString(), caption)
        End If
    End Using
    string caption = "Example: SetTagAttribute";
    using (GdPicturePDF gdpicturePDF = new GdPicturePDF())
    {
        if ((gdpicturePDF.NewPDF(PdfConformance.PDF_UA_1) == GdPictureStatus.OK) &&
            (gdpicturePDF.NewPage(PdfPageSizes.PdfPageSizeA4) == GdPictureStatus.OK))
        {
            //This is required to have a valid PDF_UA document.
            gdpicturePDF.SetTitle("My first PDF/UA document");
            string fontResName = gdpicturePDF.AddTrueTypeFontU("Arial", false, false, true);
            if ((gdpicturePDF.GetStat() == GdPictureStatus.OK) &&
                (gdpicturePDF.SetFillColor(Color.Blue) == GdPictureStatus.OK) &&
                (gdpicturePDF.SetTextSize(20) == GdPictureStatus.OK))
            {
                int tagRootID = gdpicturePDF.GetTagRootID();
                if ((gdpicturePDF.GetStat() == GdPictureStatus.OK) &&
                    (gdpicturePDF.SetLanguage("en-US") == GdPictureStatus.OK))
                {
                    int tagParagraph = gdpicturePDF.NewTag(tagRootID, "P");
                    if ((gdpicturePDF.GetStat() == GdPictureStatus.OK) &&
                        (gdpicturePDF.SetTagAttribute(tagParagraph, "TextDecorationType", "Underline") == GdPictureStatus.OK) &&
                        (gdpicturePDF.SetTagAttribute(tagParagraph, "LineHeight", 20) == GdPictureStatus.OK))
                    {
                        if ((gdpicturePDF.BeginMarkedContentSequence(tagParagraph, "P") == GdPictureStatus.OK) &&
                            (gdpicturePDF.DrawTextUnderline(fontResName, 20, 700, "This is underlined text in english that is tagged as paragraph!", Color.Aquamarine, 3) == GdPictureStatus.OK) &&
                            (gdpicturePDF.EndMarkedContent() == GdPictureStatus.OK))
                        {
                            GdPictureStatus status = gdpicturePDF.SaveToFile("test_tagged.pdf");
                            if (status == GdPictureStatus.OK)
                                MessageBox.Show("Your new PDF document has been successfully created.", caption);
                            else
                                MessageBox.Show("The file can't be saved. Status: " + status.ToString(), caption);
                        }
                        else
                            MessageBox.Show("Creating a tag's content has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption);
                    }
                    else
                        MessageBox.Show("The NewTag() or SetTagAttribute() methods have failed with the status: " + gdpicturePDF.GetStat().ToString(), caption);
                }
                else
                    MessageBox.Show("Getting the root or setting the language has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption);
            }
            else
                MessageBox.Show("Setting text properties has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption);
            gdpicturePDF.CloseDocument();
        }
        else
            MessageBox.Show("The new document can't be created. Status: " + gdpicturePDF.GetStat().ToString(), caption);
    }
    See Also