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KeyPress in RadMaskedEdit

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MaskedEditBox
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Eastern
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Eastern asked on 09 Nov 2010, 05:26 PM
hello

i am using 2010 Q2 controls and inherited my user control from RadMaskedEdit. the problem is none of the KeyPress , KeyDown, KeyUp, PreviewKewDown fires.

why? and how can i solve it ?

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Richard Slade
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answered on 09 Nov 2010, 11:00 PM
Hi Eastern,

You need to create some events to mirror the ones that you want to handle.

1: In the user control, create some events that mirror the ones that you wish to handle.
2: Create event handlers for the RadMaskedEdit to handle the KeyPress , KeyDown, KeyUp, PreviewKewDown events
3: In the method body of these Event Handlers, raise your mirrored events.

A basic example is shown below:
Imports System.ComponentModel
  
Public Class MyMaskedEditBox
  
    Public Sub New()
        InitializeComponent()
    End Sub
  
    ' Some of the propeties will exposed here
    ' Some of the methods may be exposed here
  
    <Description("The event for the controls keydown event")> _
    <Category("MyMaskedEdit Events")> _
    Public Event MaskedEditKeyDown As KeyEventHandler
  
    <Description("The event for the controls keypress event")> _
    <Category("MyMaskedEdit Events")> _
    Public Event MaskedEditKeyPress As KeyPressEventHandler
  
    <Description("The event for the controls keyup event")> _
    <Category("MyMaskedEdit Events")> _
    Public Event MaskedEditKeyUp As KeyEventHandler
  
    Private Sub RadMaskedEditBox1_KeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles RadMaskedEditBox1.KeyDown
        RaiseEvent MaskedEditKeyDown(sender, e) ' Handle MaskedEditKeyDown where you are using this this user control
    End Sub
  
    Private Sub RadMaskedEditBox1_KeyPress(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles RadMaskedEditBox1.KeyPress
        RaiseEvent MaskedEditKeyPress(sender, e) ' Handle MaskedEditKeyPress where you are using this this user control
    End Sub
  
    Private Sub RadMaskedEditBox1_KeyUp(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles RadMaskedEditBox1.KeyUp
        RaiseEvent MaskedEditKeyUp(sender, e) ' Handle MaskedEditKeyUp where you are using this this user control
    End Sub
  
End Class

and then in the form where you have the MaskedEditBox
Private Sub MyMaskedEditBox1_MaskedEditKeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles MyMaskedEditBox1.MaskedEditKeyDown
    ' handle something here
End Sub

hope that helps
Richard
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Richard Slade
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answered on 09 Nov 2010, 11:24 PM
Hello Eastern,

Please accept my apologies. I missed that this was an inherited control.
Please see this forum post to see about subscribing to these events.

Best regards,

Richard
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Richard Slade
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answered on 10 Nov 2010, 12:09 AM
Hello,

Here is a small sample for you too.

Imports System.ComponentModel
  
Public Class MyMaskedEditControl
    Inherits Telerik.WinControls.UI.RadMaskedEditBox
  
    <Category("MyMaskedEdit events")> _
    Public Event MaskedEditKeyPress As KeyPressEventHandler
    <Category("MyMaskedEdit events")> _
    Public Event MaskedEditPreviewKeyDown As PreviewKeyDownEventHandler
  
    Public Sub New()
        InitializeComponent()
        AddHandler MyBase.MaskedEditBoxElement.TextBoxItem.KeyPress, AddressOf MyMaskedEditBox_KeyPress
        AddHandler MyBase.MaskedEditBoxElement.TextBoxItem.PreviewKeyDown, AddressOf MyMaskedEditBox_PreviewKeyDown
    End Sub
  
  
    Private Sub MyMaskedEditBox_KeyPress(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyPressEventArgs)
        RaiseEvent MaskedEditKeyPress(sender, e)
    End Sub
  
    Private Sub MyMaskedEditBox_PreviewKeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.PreviewKeyDownEventArgs)
        RaiseEvent MaskedEditPreviewKeyDown(sender, e)
    End Sub
End Class


and in the form where the control is:
Private Sub MyMaskedEditControl1_MaskedEditPreviewKeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.PreviewKeyDownEventArgs) Handles MyMaskedEditControl1.MaskedEditPreviewKeyDown
    MessageBox.Show(e.KeyValue.ToString())
End Sub
Private Sub MyMaskedEditControl1_MaskedEditKeyPress(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles MyMaskedEditControl1.MaskedEditKeyPress
    MessageBox.Show(e.KeyChar.ToString())
End Sub

Hope this helps
richard
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Emanuel Varga
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answered on 10 Nov 2010, 06:54 AM
Hello guys,

The problem here is that when the keydown, keypressed and other events are being fired from the MaskedEditBoxElement not from the control itself, so you can use the following:

    this.customMaskedEditBox1.MaskedEditBoxElement.KeyPress += new KeyPressEventHandler(MaskedEditBoxElement_KeyPress);
 
void MaskedEditBoxElement_KeyPress(object sender, KeyPressEventArgs e)
{
    MessageBox.Show("KeyPress called");
}

Hope this helps, if you have any other questions or comments, please let me know,

Best Regards,
Emanuel Varga
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Eastern
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Richard Slade
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Emanuel Varga
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