protected void Page_Load(object sender, EventArgs e)
{
// handle the AJAX postback
string eventTarget = Convert.ToString(Request.Params.Get("__EVENTTARGET"));
string eventArgument = Convert.ToString(Request.Params.Get("__EVENTARGUMENT"));
// if the event argument is set, toggle the checkbox
if (eventArgument != null)
{
ToggleCheckBox(eventArgument);
}
// load a document at the first start
if (!IsPostBack)
{
byte[] data;
using (TXTextControl.ServerTextControl tx = new ServerTextControl())
{
tx.Create();
TXTextControl.LoadSettings ls = new LoadSettings();
ls.ApplicationFieldFormat = ApplicationFieldFormat.MSWord;
tx.Load(Server.MapPath("template.docx"), StreamType.WordprocessingML, ls);
tx.Save(out data, BinaryStreamType.InternalUnicodeFormat);
data = ProcessCheckboxFields(data);
}
TextControl1.LoadTextAsync(data, TXTextControl.Web.BinaryStreamType.InternalUnicodeFormat);
}
}
public string SignDocument(Document model)
{
byte[] document = Convert.FromBase64String(model.BinaryDocument);
string signature = model.BinarySignature;
byte[] signatureDocument = null;
using (ServerTextControl tx = new ServerTextControl())
{
tx.Create();
// use MailMerge to merge the signature template
using (MailMerge mailMerge = new MailMerge())
{
mailMerge.TextComponent = tx;
mailMerge.LoadTemplate(Server.MapPath("/App_Data/signature_template.tx"), FileFormat.InternalUnicodeFormat);
// create a new signature object
Signature sign = new Signature();
sign.Name = model.Name;
sign.SignatureImage = signature;
// merge and save the resulting document
mailMerge.MergeObject(sign);
mailMerge.SaveDocumentToMemory(out signatureDocument, BinaryStreamType.InternalUnicodeFormat, null);
}
// load the original document from the editor
tx.Load(document, BinaryStreamType.InternalUnicodeFormat);
// find the "signature" text frame with the name "txsig"
foreach (TextFrame frame in tx.TextFrames)
{
if (frame.Name == "txsig")
{
frame.Tables.Clear();
frame.Selection.Start = 0;
frame.Selection.Length = -1;
// load the merged signature template into the
// text frame and save the complete document
frame.Selection.Load(signatureDocument, BinaryStreamType.InternalUnicodeFormat);
tx.Save(out document, BinaryStreamType.InternalUnicodeFormat);
break;
}
}
}
// finally, return the signed document
return(Convert.ToBase64String(document));
}
public void SetFields()
{
byte[] binaryDocument = null;
// LoadSettings must be adjusted to load the MS Word fields
TXTextControl.LoadSettings ls = new LoadSettings();
ls.ApplicationFieldFormat = ApplicationFieldFormat.MSWord;
// save the document to the variable
textControl1.Save(out binaryDocument, BinaryStreamType.InternalUnicodeFormat);
// create a ServerTextControl instance to convert the checkboxes
using( TXTextControl.ServerTextControl serverTextControl = new ServerTextControl() )
{
serverTextControl.Create();
// load the document from the variable
serverTextControl.Load(binaryDocument, TXTextControl.BinaryStreamType.InternalUnicodeFormat, ls);
// loop through all fields to activate the checkbox fields
foreach (TXTextControl.ApplicationField appfield in serverTextControl.ApplicationFields)
{
if ((appfield.TypeName == "FORMCHECKBOX"))
{
// create a new adapter field
FormCheckBox ChkBoxField = new FormCheckBox(appfield);
// select the field to change the font name
serverTextControl.Select(ChkBoxField.Start - 1, ChkBoxField.Length);
serverTextControl.Selection.FontName = "Arial Unicode MS";
// set the text (state)
if (ChkBoxField.Checked == true)
ChkBoxField.Text = CHECKED;
else
ChkBoxField.Text = UNCHECKED;
}
}
// save the document back to the variable
serverTextControl.Save(out binaryDocument, BinaryStreamType.InternalUnicodeFormat);
// load the document back into the TextControl to show it to the user
textControl1.Load(binaryDocument, BinaryStreamType.InternalUnicodeFormat, ls);
}
}
/********************************************************
* ToggleCheckBox method
* desc: toggles a specific checkbox field
* parameter: fieldname - the name of the field
********************************************************/
private void ToggleCheckBox(string fieldName)
{
byte[] data;
// create a new temporary ServerTextControl
using (TXTextControl.ServerTextControl tx = new ServerTextControl())
{
tx.Create();
// save current document from the editor and load
// it into the ServerTextControl
TextControl1.SaveText(out data, TXTextControl.Web.BinaryStreamType.InternalUnicodeFormat);
tx.Load(data, BinaryStreamType.InternalUnicodeFormat);
// loop through all ApplicationFields in each TextPart
foreach (IFormattedText textPart in tx.TextParts)
{
foreach (ApplicationField field in textPart.ApplicationFields)
{
if ((field.TypeName != "FORMCHECKBOX"))
continue;
// if the field is a checkbox and the name matches
// toggle the Checked property
if (field.Name == fieldName)
{
// create a new adapter field
FormCheckBox checkboxField = new FormCheckBox(field);
checkboxField.Checked = !checkboxField.Checked;
}
}
}
tx.Save(out data, BinaryStreamType.InternalUnicodeFormat);
}
// process the fields and load the document back into the editor
TextControl1.LoadTextAsync(ProcessCheckboxFields(data), TXTextControl.Web.BinaryStreamType.InternalUnicodeFormat);
}
