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MaskedTextBox Control in VB.Net


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MaskedTextBox Control in VB.Net

A MaskedTextBox control provides validation mechanism for user input on a Form. By default Masked property is set to None and the control works like a normal TextBox control.

How use MaskedTextBox Control

Drag and drop MaskedTextBox and Button (change its caption to Submit) control from toolbox on the window Form.

MaskedTextBox Control in VB.Net

Code:

Public Class Form10

 

    Private Sub Form10_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

        'Here TextBox is masked as number show you can enter number only

        MaskedTextBox1.Mask = "00000000000000000"

    End Sub

 

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

        'Enter number will show in Label

        Label2.Text = "Entered Number is  " + MaskedTextBox1.Text

    End Sub

End Class

 

Run The Project

MaskedTextBox Control in VB.Net

When you enter other than number then masketextbox will not accept.Because in code mask is specified as  MaskedTextBox1.Mask = "00000000000000000" which means it will accept only number.

MaskedTextBox Control in VB.Net

When you enter number and click Submit Button then click event of submit button will fire and entered number will show in the Label.

MaskedTextBox Property

UseSystemPasswordChar: Gets or sets a value indicating as password character.

Private Sub Form10_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

        ' entered number will show as password

        MaskedTextBox1.UseSystemPasswordChar = True

End Sub

MaskedTextBox Control in VB.Net

ForeColor:

ForeColor ofMaskedTextBox can be changed through ForeColor property of MaskedTextBox.

Private Sub Form10_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

        'change ForeColor of MaskedTextBox

        MaskedTextBox1.ForeColor = Color.Red

End Sub

ForeColor  of MaskedTextBox will bechanged.

MaskedTextBox Control in VB.Net


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