InfoPath Dev

Hi
Does anybody know how to remove signatures by code (which method).
Thanks.
Philippe

Hello Philippe,

I know that there is a collection in the XDocument object called 'SignedDataBlocks'. Hopefully you can use this collection to remove one or more signatures by code.
For more information regarding this issue, please have a look here:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/odc_ip2003_tr/html/odc_INF_Lab_10.asp

Maybe another source of interest could be the following...

http://www.readol.net/books818/computer/Windows/Introducing.Microsoft.Office.InfoPath.2003/index.left.htm

HTH,

Thanks Karsten for the help in the forum!
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Hello Karsten,
I'm afraid the links you've mentionned above don't talk about removing signatures by code, but removing in the signature dialog box.
I have allready spent a lot of time to search in internet. What I need is a method such as "XDocument.SignedDataBlocks(i).Signatures.Delete() .But these seems not to exist. I would be very interested, how the button "Remove" in the dialog box works.

I hope anybody can help me.
regards.
Philippe

As I haven't become any other answer, I have decided to put a button, which opens the Digital Signatures Wizard and the user has to remove the signatures himself manually.

Hi Zaphi,
Thanks for replying again. Sorry for the delay here. We can definitely provide some code snippets. I'll ask someone on our team to do this over the weekend.

Hi Zaphi,
Here is the code that removes the signatures. Please let me know if you have any queries on this

SignaturesCollection oSignaturesCollection = thisXDocument.SignedDataBlocks["Actions"];
int iCountOfSignatures = oSignaturesCollection.Count;
if(iCountOfSignatures <= 0)
{
return;
}

IXMLDOMNode oSignatureNode = oSignedDataBlock.Signatures[0].SignatureBlockXmlNode;
if(null == oSignatureNode)
{
return;
}
oSignatureNode.parentNode.removeChild(oSignatureNode);

Hi Agni,
Thanks for your help. I just have a question: Can you give me the sample code in JScript?
I have just a problem with the line:

IXMLDOMNode oSignatureNode = oSignedDataBlock.Signatures[0].SignatureBlockXmlNode;

Regards.
Philippe

Hi,
Can anybody help me to give me the code above in JScript.

Thanks.
Philippe

try with
var oSignatureNode = oSignedDataBlock.Signatures(0).SignatureBlockXmlNode;
or
var oSignatureNode = oSignedDataBlock.Signatures[0].SignatureBlockXmlNode;

I know this is an old thread, but if anyone's interested, I got this code to work in JScript (Where bName is a string containing the name of the data block that contains the signature you want to delete):

function removeSignature(bName){

           var oSignaturesCollection = XDocument.SignedDataBlocks[bName].Signatures;
           var iCountOfSignatures = oSignaturesCollection.Count;

           if(iCountOfSignatures <= 0)
                     return;

           var oSignatureNode = oSignaturesCollection(0).SignatureBlockXmlNode;

           if(null == oSignatureNode)
                     return;

           oSignatureNode.parentNode.removeChild(oSignatureNode); 

}
 

The only hitch is that when you delete the signature block, the little "Click here to sign" text doesn't reappear until you reopen the form.  For my purposes this is fine becuase I'm clearing the signature before I submit the form to someone else via email, but if someone needed to clear the signature field, then have someone sign that field, this could be a problem.

This is awesome, I so want to be able to do this on my form! (The form requires that a supervisor, service chief, and senior executive sign it in sequence.  The service chief and senior executive both need to be able to send back the form and remove the prior digital signatures to start it all over)

 Could anyone give me this in VBA please?

 Also, how do I find 'bname' for the code from my form?

 Since this is creating a function, I need to create a button which should call the function and pass bname to it?