RESOLVED How to use Propercase?

[Sanko]

If you dont know Propercase "(first char of a word is Upercase --> Visual Basic Is Easy)"

Hi i have an old Propercase function in VB6, but i cant apply in Vb.Net

This function changes to Propercase in realtime when i write text in the textbox using the keypress.

here is the VB6 way:

Public Function Txtmayus(Texto As TextBox, KeyAscii As Integer)
' SI EL PRIMER CARACTER ES UN ESPACIO
If Len(Texto) = 0 Then
    If KeyAscii = 32 Then
        ' CANCELAR
        KeyAscii = 0
        Exit Function
    End If
End If
' SI NO ES EL 1° CARACTER
If Texto.SelStart <> 0 Then
    ' DESPUES DEL ESPACIO NO
    If Mid$(Texto.Text, Texto.SelStart, 1) <> " " Then
        ' NO MAS DE 2 ESPACIOS CONSECUTIVOS
        If KeyAscii = 32 Then KeyAscii = 0
    End If
End If
KeyAscii = Asc(UCase$(Chr$(KeyAscii)))
End Function

And in the Keypress event of a Textbox

Txtmayus(Text1, Keyascii)

But in .Net the e.KeyChar is read only and i cant asign a value, and if i use
Texto.Text = StrConv(Texto.Text, VbStrConv.ProperCase) it reverses the chars.

Here is my VB.net code

' Permito solo Caracteres
    Public Sub TxtMayus(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs)
        Dim Texto As TextBox = CType(sender, TextBox)
 
             ' Si el primer caracter es un espacio
        If Len(Texto.Text) = 0 Then
            If Asc(e.KeyChar) = 32 Then
                ' Lo anulo
                e.Handled = True
                Exit Sub
            End If
        End If
        ' Si no es el 1° caracter
        If Texto.SelectionStart <> 0 Then
            ' Despues del espacio no            
            If Mid(Texto.Text, Texto.SelectionStart, 1) = " " Then
                ' No mas de 2 espacios consecutivos
                If Asc(e.KeyChar) = 32 Then
                    e.Handled = True
                    Exit Sub
                End If
            End If
        End If
        Texto.Text = StrConv(Texto.Text, VbStrConv.ProperCase)
    End Sub

And i try to use SendKeys.send but the app Blocks, hang

e.Handled = True
SendKeys.Send(e.KeyChar.ToUpper(e.KeyChar))

Any idea??

[Zakary]

Try to insert manualy with something like

MyTextBox.Text.Insert(CharPosition, CharToInsert)

To make you code more in .NET philosophy;
-Instead of using the Len function you may use MyTextBox.Text.Length
-instead of usgin the Mid function you may use MyTextBox.Text.Substring


Hope this will help

[Sanko]

Thanks to Zakary i modified the code

' Si el primer caracter es un espacio
        If Texto.Text.Length = 0 Then
            If Asc(e.KeyChar) = 32 Then
                ' Lo anulo
                e.Handled = True
                Exit Sub
            End If
            ' Obtengo el primer caracter
            e.Handled = True
            Texto.Text = Texto.Text & e.KeyChar.ToUpper(e.KeyChar)
            Texto.SelectionStart = Len(Texto.Text) + 1
        End If
 
        ' Si no es el 1° caracter
        If Texto.SelectionStart <> 0 Then
            ' Despues del espacio no                                    
            If Texto.Text.Substring(Texto.Text.Length - 1, 1) = " " Then
                ' No mas de 2 espacios consecutivos
                If Asc(e.KeyChar) = 32 Then
                    e.Handled = True
                    Exit Sub
                End If
                ' Backspace
                If Asc(e.KeyChar) = 8 Then
                    Exit Sub
                End If
                e.Handled = True
                Texto.Text = Texto.Text & e.KeyChar.ToUpper(e.KeyChar)
                Texto.SelectionStart = Len(Texto.Text) + 1
            End If
        End If

The only problem is found if you write some word an then place the cursor in the begin that char is lowercase when it must be Uppercase example

write keyboard the text shows Keyboard now put the cursor in the begin and write aa it shows aaKeyboard it must say Aakeyboard

[jmcilhinney]

Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged
        Dim selectionStart As Integer = Me.TextBox1.SelectionStart
 
        Me.TextBox1.Text = Globalization.CultureInfo.CurrentCulture.TextInfo.ToTitleCase(Me.TextBox1.Text)
 
        If selectionStart <> -1 Then
            Me.TextBox1.SelectionStart = selectionStart
        End If
    End Sub

[Sanko]

Thank You jmcilhinney that is what i need