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Lower, Upper and Proper Case in Visual Basic .Net

Lower, Upper and Proper Case in Visual Basic .Net

This is a vb.net program that will convert your string into all caps, all small letter and in proper case format. Proper case means that it will capitalize the first letter of every word that is separated by space.

Open the project solution (.sln) in visual studio 2010/2012 or open directly the project file (.vbproj)

Source code:

Public Class Form1

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        If validatefield() = False Then
            MessageBox.Show(TextBox1.Text.ToLower())
        End If
    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        If validatefield() = False Then
            MessageBox.Show(TextBox1.Text.ToUpper())
        End If
    End Sub

    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
        If validatefield() = False Then
            MessageBox.Show(Globalization.CultureInfo.CurrentCulture.TextInfo.ToTitleCase(TextBox1.Text))
        End If


    End Sub

    Function validatefield() As Boolean
        validatefield = True
        If TextBox1.Text = "" Then
            MessageBox.Show("Please enter a text")
            TextBox1.Focus()
            Exit Function
        End If
        validatefield = False
    End Function
End Class