ToolStripCheckBox

[JuggaloBrotha]

I've recently wanted a CheckBox in a ToolStrip and while that control doesn't exist in the framework, I did some googling and made my own:

Imports System.Windows.Forms.Design

<ToolStripItemDesignerAvailability(ToolStripItemDesignerAvailability.ToolStrip), DebuggerStepThrough()> _
Public Class ToolStripCheckBox
    Inherits ToolStripControlHost

    Public Sub New()
        MyBase.New(New System.Windows.Forms.CheckBox())
        ToolStripCheckBoxControl.BackColor = Color.Transparent
    End Sub

    Public ReadOnly Property ToolStripCheckBoxControl() As CheckBox
        Get
            Return TryCast(Control, CheckBox)
        End Get
    End Property

    Public Property ToolStripCheckBoxEnabled() As Boolean
        Get
            Return ToolStripCheckBoxControl.Enabled
        End Get
        Set(ByVal value As Boolean)
            ToolStripCheckBoxControl.Enabled = value
        End Set
    End Property

    Public Property Checked() As Boolean
        Get
            Return ToolStripCheckBoxControl.Checked
        End Get
        Set(ByVal value As Boolean)
            ToolStripCheckBoxControl.Checked = value
        End Set
    End Property

    Protected Overrides Sub OnSubscribeControlEvents(ByVal c As Control)
        MyBase.OnSubscribeControlEvents(c)
        AddHandler DirectCast(c, CheckBox).CheckedChanged, AddressOf OnCheckedChanged
    End Sub

    Protected Overrides Sub OnUnsubscribeControlEvents(ByVal c As Control)
        MyBase.OnUnsubscribeControlEvents(c)
        RemoveHandler DirectCast(c, CheckBox).CheckedChanged, AddressOf OnCheckedChanged
    End Sub

    Public Event CheckedChanged As EventHandler

    Private Sub OnCheckedChanged(ByVal sender As Object, ByVal e As EventArgs)
        RaiseEvent CheckedChanged(Me, e)
    End Sub
End Class

Just add that code to your project , build it then simply click the AddItem DropDown arrow on a ToolStrip and at the bottom, there it is.

Here's a screenshot of it being used:


I've also included a class file as well as an example project for this.

[weirddemon]

Nice! I'm going to test it out as soon as I get a chance. This definitely seems useful

[JuggaloBrotha]

I modified the code so the internal checkbox's backcolor is transparent, allows the toolstrip's gradient backcolor to show through the text

[The_Virus_TCH]

I am messing with a control like this for the first time. This code provided where would you put this? In a new Class or an existing class?

[weirddemon]

I am messing with a control like this for the first time. This code provided where would you put this? In a new Class or an existing class?

It's a control. So you can either create a control and paste in this code or just create a new class.

If you look at the code, it's a class. So you can't really put it in another class:

Public Class ToolStripCheckBox

[The_Virus_TCH]

Yea i knew it was a coded as a class. I guess my issue is once i add it to a new class I cannot figure out how to get it into my ToolStrip.

I read about adding it to the construct of the toolstrip, but I have never done this before. I go into the Designer of the Form but it throughs any when attempting this. Sorry I have dome a lot of things with code before just never tried building a control like this before.

[weirddemon]

Yea i knew it was a coded as a class. I guess my issue is once i add it to a new class I cannot figure out how to get it into my ToolStrip. I read about adding it to the construct of the toolstrip, but I have never done this before. I go into the Designer of the Form but it throughs any when attempting this. SOrry I have dome a lot of things with code before just never tried building a control like this before.

The point I was making was that you can't put a class in a class.

There's nothing you need to do. Create the class, build the project, add the toolstrip to the form, and add the checkbox like you would any other native child control.

[The_Virus_TCH]

This is the error i get

Constructor on type 'System.Windows.Forms.ToolStripControlHost' not found.

[weirddemon]

This is the error i get

Constructor on type 'System.Windows.Forms.ToolStripControlHost' not found.

C'mon, man. You're not even trying. I'm not going to do this for you. Hover over the error.

[JuggaloBrotha]

The point I was making was that you can't put a class in a class.

There's nothing you need to do. Create the class, build the project, add the toolstrip to the form, and add the checkbox like you would any other native child control.

Actually you can:

Public Class OutterClass
 
  Private m_InnerClass As InnerClass
 
  Public Sub New()
    m_InnerClass = New InnerClass
  End Sub
 
  Private Class InnerClass
    Public Sub New()
    End Sub
  End Clas
 
End Class

This is the error i get

Constructor on type 'System.Windows.Forms.ToolStripControlHost' not found.

See post #1, I've included an example project, the control as a class file & a screenshot for ya.

[weirddemon]

Actually you can:

Public Class OutterClass
 
  Private m_InnerClass As InnerClass
 
  Public Sub New()
    m_InnerClass = New InnerClass
  End Sub
 
  Private Class InnerClass
    Public Sub New()
    End Sub
  End Clas
 
End Class

See post #1, I've included an example project, the control as a class file & a screenshot for ya.

Yeah. I don't know what I was thinking. I have classes within classes on several of my projects.

Maybe the context of the control confused me.

[Mark@SF]

This is the error i get

Constructor on type 'System.Windows.Forms.ToolStripControlHost' not found.

Did you ever figure out why this error happens? I can get the ToolStripCheckBox working on my form, and I can use <F7> to look at the code, but the error happens when I try to view the Designer (double-click the ToolStripCheckBox.vb class module or <Shift F7>).

[JuggaloBrotha]

Did you ever figure out why this error happens? I can get the ToolStripCheckBox working on my form, and I can use <F7> to look at the code, but the error happens when I try to view the Designer (double-click the ToolStripCheckBox.vb class module or <Shift F7>).

This isn't a control you can open in the visual designer as it has to be rendered in a ToolStripControlHost. Right click on it in the solution explorer and click "View Code" to see how it's made.

[The_Virus_TCH]

I am a MORON sorry about that was trying to work from home and my 4 year old had me milti-tasking. Thanks for your help.

[nbrege]

Juggalo ... I'm having some issues with this control. I added the class to my project by copying & pasting your code from post #1 above. I add a ToolStrip to my form from the toolbox. I then add a CheckBox to the ToolStrip by picking it from the dropdown & it shows up in the ToolStrip as expected. I then run the project & the form shows on the screen with the CheckBox in the ToolStrip as expected, great. I now close the form & the CheckBox control disappears from the ToolStrip in the designer, along with the dropdown. When I run the project again the CheckBox still shows in the ToolStrip. But back in the designer I cannot see, select or delete the CheckBox or add other controls to the ToolStrip. If I delete the ToolStrip from the form & run the project again the ToolStrip still shows up along with the CheckBox on it. Any idea what's going on? I'd like to use this control, but certainly not with this behavior. Thanks for any help. BTW, I am using VS 2012, 4.0 framework & Windows 8.

[JuggaloBrotha]

Juggalo ... I'm having some issues with this control. I added the class to my project by copying & pasting your code from post #1 above. I add a ToolStrip to my form from the toolbox. I then add a CheckBox to the ToolStrip by picking it from the dropdown & it shows up in the ToolStrip as expected. I then run the project & the form shows on the screen with the CheckBox in the ToolStrip as expected, great. I now close the form & the CheckBox control disappears from the ToolStrip in the designer, along with the dropdown. When I run the project again the CheckBox still shows in the ToolStrip. But back in the designer I cannot see, select or delete the CheckBox or add other controls to the ToolStrip. If I delete the ToolStrip from the form & run the project again the ToolStrip still shows up along with the CheckBox on it. Any idea what's going on? I'd like to use this control, but certainly not with this behavior. Thanks for any help. BTW, I am using VS 2012, 4.0 framework & Windows 8.

Try closing the form in the designer, then reopening it and everything should appear to be normal.
I don't have Win8 or VS2012/2013, but using Win7 Ultimate x64 and VS 2010 Ultimate I am unable to reproduce your situation.

[nbrege]

Juggalo ... I have revisited this post as I would like to use this control in a project, but I am still having the same issue I described in post #15. Closing the form & reopening it works, but everytime I run the project & then stop it, everything on the ToolStrip disappears again. It's a real pain to have to close & reopen the form designer everytime. Is there anything that can be done to eliminate this issue? I'm running VS2013/Windows 8 64bit. Thanks.

[JuggaloBrotha]

Can you zip & upload your project?
I still don't have Win8 or VS2012/2013, I'm running Win7 Ultimate x64 & VS2010, I'm not able to reproduce your issues at all.

Probably by the end of this year I'll have Win10 x64 & VS2015 to try it out with.

[pitoloko]

Year 2024. I'll share here an improved modified version. Thanks to @JuggaloBrotha for sharing his original concept.

Notable changes:

• Added support to use the CheckBox on a StatusStrip too.
• Added properties: Checkstate and ThreeState
• Added event: CheckstateChanged
• Added relevant class attributes to each property (replicating what is defined in CheckBox class)
• Properties are categorized and have descriptions for the property grid.
• Simplified hosted CheckBox usage by shadowing ToolStripControlHost.Control property.
• All the members of the source code are well XML documented.

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Screenshots:

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Source-code:

Note: You can set ToolboxItem and DesignTimeVisible class attributes to 'True' if you prefer.

ToolStripCheckBox .vb

#Region " Imports "

Imports System.ComponentModel
Imports System.ComponentModel.Design
Imports System.Runtime.InteropServices
Imports System.Windows.Forms.Design

#End Region

#Region " ToolStripCheckBox "

''' <summary>
''' Represents a selectable <see cref="ToolStripItem"/> that when clicked, toggles a checkmark.
''' </summary>
''' <seealso cref="ToolStripControlHost"/>
<
    ClassInterface(ClassInterfaceType.AutoDispatch),
    ComVisible(True),
    DebuggerStepThrough,
    DefaultEvent(NameOf(ToolStripCheckBox.CheckedChanged)),
    DefaultProperty(NameOf(ToolStripCheckBox.Text)),
    Description("Represents a selectable ToolStripItem that when clicked, toggles a checkmark."),
    Designer("System.Windows.Forms.Design.ToolStripItemDesigner, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"),
    DesignerCategory(NameOf(DesignerCategoryAttribute.Generic)),
    DesignTimeVisible(False),
    DisplayName(NameOf(ToolStripCheckBox)),
    Localizable(True),
    ToolboxBitmap(GetType(CheckBox), "CheckBox.bmp"),
    ToolboxItem(False),
    ToolboxItemFilter("System.Windows.Forms", ToolboxItemFilterType.Allow),
    ToolStripItemDesignerAvailability(ToolStripItemDesignerAvailability.ToolStrip Or ToolStripItemDesignerAvailability.StatusStrip)
>
Public Class ToolStripCheckBox : Inherits ToolStripControlHost

#Region " Properties "

    ''' <summary>
    ''' Gets the <see cref="CheckBox"/> control that is hosted by this <see cref="ToolStripCheckBox"/>.
    ''' </summary>
    <
        Browsable(True), EditorBrowsable(EditorBrowsableState.Advanced),
        DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden),
        Category("Hosted"), Description("The CheckBox control that is hosted by this control.")
    >
    Public Shadows ReadOnly Property Control As CheckBox
        Get
            Return DirectCast(MyBase.Control, CheckBox)
        End Get
    End Property

    ''' <summary>
    ''' Gets or sets a value indicating whether this <see cref="ToolStripCheckBox"/> is in the checked state.
    ''' </summary>
    ''' 
    ''' <returns>
    ''' <see langword="True"/> if checked; otherwise, <see langword="False"/>.
    ''' </returns>
    <
        Bindable(True), SettingsBindable(True),
        DefaultValue(False),
        RefreshProperties(RefreshProperties.All),
        Category("Appearance"), Description("Specifies whether this control is in the checked state.")
    >
    Public Property Checked As Boolean
        Get
            Return Me.Control.Checked
        End Get
        Set(value As Boolean)
            Me.Control.Checked = value
        End Set
    End Property

    ''' <summary>
    ''' Gets or sets the checked state of this <see cref="ToolStripCheckBox"/>.
    ''' </summary>
    ''' 
    ''' <returns>
    ''' One of the <see cref="System.Windows.Forms.CheckState"/> enumeration values. 
    ''' <para></para>
    ''' The default value is <see cref="System.Windows.Forms.CheckState.Unchecked"/>.
    ''' </returns>
    ''' 
    ''' <exception cref="System.ComponentModel.InvalidEnumArgumentException">
    ''' The value assigned is not one of the <see cref="System.Windows.Forms.CheckState"/> enumeration values.
    ''' </exception>
    <
        Bindable(True),
        DefaultValue(CheckState.Unchecked),
        RefreshProperties(RefreshProperties.All),
        Category("Appearance"), Description("Specifies the checked state of this control.")
    >
    Public Property CheckState As CheckState
        Get
            Return Me.Control.CheckState
        End Get
        Set(value As CheckState)
            Me.Control.CheckState = value
        End Set
    End Property

    ''' <summary>
    ''' Gets or sets a value indicating whether this <see cref="ToolStripCheckBox"/> 
    ''' will allow three check states rather than two.
    ''' </summary>
    ''' 
    ''' <remarks>
    ''' If the <see cref="ToolStripCheckBox.ThreeState"/> property is set to <see langword="False"/>, 
    ''' the <see cref="ToolStripCheckBox.CheckState"/> property value can only be set to 
    ''' the <see cref="System.Windows.Forms.CheckState.Indeterminate"/> value in code, 
    ''' and not by user interaction doing click on the control.
    ''' </remarks>
    ''' 
    ''' <returns>
    ''' <see langword="True"/> if this <see cref="ToolStripCheckBox"/> 
    ''' is able to display three check states; otherwise, <see langword="False"/>.
    ''' <para></para>
    ''' The default value is <see langword="False"/>.
    ''' </returns>
    <
        DefaultValue(False),
        Category("Behavior"), Description("Specifies whether this control will allow three check states rather than two.")
    >
    Public Property ThreeState As Boolean
        Get
            Return Me.Control.ThreeState
        End Get
        Set(value As Boolean)
            Me.Control.ThreeState = value
        End Set
    End Property

#End Region

#Region " Events "

    ''' <summary>
    ''' Occurs whenever the <see cref="ToolStripCheckBox.Checked"/> property is changed.
    ''' </summary>
    Public Event CheckedChanged As EventHandler

    ''' <summary>
    ''' Occurs whenever the <see cref="ToolStripCheckBox.CheckState"/> property is changed.
    ''' </summary>
    Public Event CheckStateChanged As EventHandler

#End Region

#Region " Constructors "

    ''' <summary>
    ''' Initializes a new instance of the <see cref="ToolStripCheckBox"/> class.
    ''' </summary>
    Public Sub New()

        MyBase.New(New CheckBox())
        Me.Control.BackColor = Color.Transparent
    End Sub

#End Region

#Region " Event Invocators "

    ''' <summary>
    ''' Raises the <see cref="ToolStripCheckBox.CheckedChanged"/> event.
    ''' </summary>
    ''' 
    ''' <param name="sender">
    ''' The source of the event.
    ''' </param>
    ''' 
    ''' <param name="e">
    ''' The <see cref="EventArgs"/> instance containing the event data.
    ''' </param>
    Private Sub OnCheckedChanged(sender As Object, e As EventArgs)
        If Me.CheckedChangedEvent IsNot Nothing Then
            RaiseEvent CheckedChanged(Me, e)
        End If
    End Sub

    ''' <summary>
    ''' Raises the <see cref="ToolStripCheckBox.CheckStateChanged"/> event.
    ''' </summary>
    ''' 
    ''' <param name="sender">
    ''' The source of the event.
    ''' </param>
    ''' 
    ''' <param name="e">
    ''' The <see cref="EventArgs"/> instance containing the event data.
    ''' </param>
    Private Sub OnCheckStateChanged(sender As Object, e As EventArgs)
        If Me.CheckStateChangedEvent IsNot Nothing Then
            RaiseEvent CheckStateChanged(Me, e)
        End If
    End Sub

#End Region

#Region " Event Invocators (Overriden) "

    ''' <summary>
    ''' Subscribes events from the hosted control
    ''' </summary>
    ''' 
    ''' <param name="control">
    ''' The control from which to subscribe events.
    ''' </param>
    Protected Overrides Sub OnSubscribeControlEvents(control As Control)
        MyBase.OnSubscribeControlEvents(control)
        AddHandler DirectCast(control, CheckBox).CheckedChanged, AddressOf Me.OnCheckedChanged
    End Sub

    ''' <summary>
    ''' Unsubscribes events from the hosted control
    ''' </summary>
    ''' 
    ''' <param name="control">
    ''' The control from which to unsubscribe events.
    ''' </param>
    Protected Overrides Sub OnUnsubscribeControlEvents(control As Control)
        MyBase.OnUnsubscribeControlEvents(control)
        RemoveHandler DirectCast(control, CheckBox).CheckedChanged, AddressOf Me.OnCheckedChanged
    End Sub

    ''' <summary>
    ''' Raises the <see cref="Windows.Forms.Control.ParentChanged"/> event.
    ''' </summary>
    ''' 
    ''' <param name="oldParent">
    ''' The original parent of the item.
    ''' </param>
    ''' 
    ''' <param name="newParent">
    ''' The new parent of the item.
    ''' </param>
    Protected Overrides Sub OnParentChanged(oldParent As ToolStrip, newParent As ToolStrip)
        MyBase.OnParentChanged(oldParent, newParent)
    End Sub

    ''' <summary>
    ''' Raises the <see cref="ToolStripItem.OwnerChanged"/> event.
    ''' </summary>
    ''' 
    ''' <param name="e">
    ''' The <see cref="EventArgs"/> instance containing the event data.
    ''' </param>
    Protected Overrides Sub OnOwnerChanged(e As EventArgs)
        MyBase.OnOwnerChanged(e)
    End Sub

#End Region

End Class

#End Region

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The issue described in post #15 it is related to Windows Forms designer that is changing the parent and the owner at design time. I was not able to figure out a solution for it.