'Declaration
 
Protected Overridable Function CreateMaskedTextProvider( _
   ByVal mask As String, _
   ByVal cultureInfo As CultureInfo, _
   ByVal allowPromptAsInput As Boolean, _
   ByVal promptChar As Char, _
   ByVal passwordChar As Char, _
   ByVal restrictToAscii As Boolean _
) As MaskedTextProvider

'Usage
 
Dim instance As MaskedTextBox
Dim mask As String
Dim cultureInfo As CultureInfo
Dim allowPromptAsInput As Boolean
Dim promptChar As Char
Dim passwordChar As Char
Dim restrictToAscii As Boolean
Dim value As MaskedTextProvider
 
value = instance.CreateMaskedTextProvider(mask, cultureInfo, allowPromptAsInput, promptChar, passwordChar, restrictToAscii)

protected virtual MaskedTextProvider CreateMaskedTextProvider( 
   string mask,
   CultureInfo cultureInfo,
   bool allowPromptAsInput,
   char promptChar,
   char passwordChar,
   bool restrictToAscii
)

Parameters

mask

The string that will be used as the input mask.

cultureInfo

The CultureInfo that will be used by the masked-text provider.

allowPromptAsInput

true if the prompt char should be considered as a valid input character; false, otherwise. By default, true.

promptChar

A character that represents the positions in the masked text box that require input. By default, "_"­ (underscore).

passwordChar

A character that represents the character to used to mask a password.

restrictToAscii

true if non-ASCII characters are accepted; false otherwise. By default, false.

.NET: net5.0, net5.0-windows, net6.0, net6.0-macos, net6.0-windows, net7.0, net7.0-macos, net7.0-windows, net8.0, net8.0-browser, net8.0-macos, net8.0-windows, net9.0, net9.0-browser, net9.0-macos, net9.0-windows, net10.0, net10.0-browser, net10.0-macos, net10.0-windows.

.NET Framework: net40, net403, net45, net451, net452, net46, net461, net462, net463, net47, net471, net472, net48, net481.

Reference

MaskedTextBox Class
MaskedTextBox Members