We recommend using Visual Studio 2017

UserPermissionCollection.Add Method (String, DateTime) (Microsoft.Office.InfoPath)

Add a new user to the current form with an expiration date.

Namespace: Microsoft.Office.InfoPath
Assembly: Microsoft.Office.InfoPath (in microsoft.office.infopath.dll)

public abstract UserPermission Add (
	string userId,
	DateTime expirationDate
)

Parameters

userId

The e-mail address in the format user@domain.com of the user to whom permissions on the current form are being granted.

expirationDate

The expiration date for the permissions that are being granted as a System.DateTime value.

Return Value

A UserPermission object that represents the specified user.

Exception typeCondition

ArgumentNullException

The parameter passed to this method is null.

ArgumentException

The parameter passed to this method isnot valid. For example, it is of the wrong type or format.

SecurityException

The form template is not configured for Full Trust using the Security and Trust category of the Form Options dialog box.

This member can be accessed only by forms opened from a form template that as been configured to run with full trust using the Security and Trust category of the Form Options dialog box. This member requires full trust for the immediate caller and cannot be used by partially trusted code. For more information, see "Using Libraries from Partially Trusted Code" on MSDN.

This type or member can be accessed only from code running in forms opened in Microsoft Office InfoPath 2007.

In the following example, clicking the Button control gets the UserPermissionsCollection for the current form, adds a new user to the current form, and sets an expiration date of two days from the current date.

public void CTRL1_Clicked(object sender, ClickedEventArgs e)
{
   string strExpirationDate = DateTime.Today.AddDays(2).ToString();
   DateTime dtExpirationDate = DateTime.Parse(strExpirationDate);

   this.Permission.UserPermissions.Add("someone@example.com",
      dtExpirationDate);
}
Show: