_XDocument2.IsSigned property
Gets a value that indicates whether a form has been digitally signed using digital signatures.
Namespace: Microsoft.Office.Interop.InfoPath.SemiTrust
Assembly: Microsoft.Office.Interop.InfoPath.SemiTrust (in Microsoft.Office.Interop.InfoPath.SemiTrust.dll)
Syntax
'Declaration
ReadOnly Property IsSigned As Boolean
Get
'Usage
Dim instance As _XDocument2
Dim value As Boolean
value = instance.IsSigned
bool IsSigned { get; }
Property value
Type: System.Boolean
Implements
Remarks
If the IsSigned property is true, the form has been digitally signed. If false, the form has not been digitally signed.
InfoPath uses XML Signatures to digitally sign forms.
Note
If a form has been digitally signed, its underlying XML document is placed in a read-only state.
Important
This member can be accessed only by forms running in the same domain as the currently open form, or by forms that have been granted cross-domain permissions.
Examples
In the following example, the IsSigned property of the XDocument object is used to determine whether a form has been digitally signed:
if (thisXDocument.IsSigned)
{
thisXDocument.UI.Alert("This form contains digital signatures.");
}