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Gets or sets a Boolean value indicating whether the date the document was signed should be displayed.
Use this property to determine whether the signature line is configured to show the signing date after the document is signed.
bool ShowSignDate { get; set; }
Property ShowSignDate As Boolean
ISignature signature = workbook.Signatures.AddSignatureLine(worksheet, 100.0, 50.0, 192.0, 100.5);
ISignatureSetup setup = signature.Setup;
setup.ShowSignDate = true;
bool showSignDate = setup.ShowSignDate;