Disabling a Button with a Click Event

[klornpallier]

I need to disable a menu button once it is clicked. Within the click event of the button I placed:

ButtonName.Enabled = False

This does not seem to work. Any help would be appreciated.

Thanks

 

[DaveInIowa]

Your syntax is correct and works for me. Is this "menu button" a System.Windows.Forms.Button or a System.Windows.Forms.ToolStripMenuItem? Also, is ButtonName the name of the control, the prefix of your click event (ButtonName_Click), or both?

Try replacing your line of code with

CType(sender, Control).Enabled = False

and see if that works.

 

[klornpallier]

Thank you for your response. Its a ToolStripItem so I changed this to the below but is doesnt still work. Oh and yes ButtonName is the naem of the control:

CType(sender, ToolStripItem).Enabled = False

 

[TipGiver]

Private sub ButtonName_click(... ,...) Handles ButtonName.Click

is the handler there? Some times if you copy-paste control or move them between forms the handler is deleted.

 

[DaveInIowa]

Have you placed a breakpoint to verify that your program is actually hitting that line of code? Is this a Windows Forms program?

 

[klornpallier]

Here's the full Sub. The problem is on the last 2 lines of code. Thanks again

Private Sub BindingNavigatorAddNewItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BindingNavigatorAddNewItem.Click

'Set Defaults
KPPERSON.VARIABLE_INPUT.Columns("EMP_NO").DefaultValue = EmpNoHolderLabel.Text
KPPERSON.VARIABLE_INPUT.Columns("PERIOD_NO").DefaultValue = PeriodHolderLabel.Text
KPPERSON.VARIABLE_INPUT.Columns("EARN_DATE").DefaultValue = EarnDateHolderLabel.Text
'KPPERSON.VARIABLE_INPUT.Columns("PAYMENT_TYPE").DefaultValue = "Adjustment"

'Start on the Element Row
Dim row_no As Integer = Me.VARIABLE_INPUTDataGridView1.SelectedCells(0).RowIndex
VARIABLE_INPUTDataGridView1.CurrentCell = VARIABLE_INPUTDataGridView1(4, row_no)

'Disable the Add button until saved
CType(sender, ToolStripItem).Enabled = False

End Sub

 

[TipGiver]

CType(sender, ToolStripButton).Enabled = False

 

[TipGiver]

The ToolStripItem also works for me. That is because the ToolStripItem is the base class (ToolStripButton derives) and the .Enable property exists there.

 

[klornpallier]

Thanks for your efforts but annoyingly neither work for me! Any further ideas?

 

[klornpallier]

Ironically although 'MenuToolStripButton.Enabled = False' doesnt work 'MenuToolStripButton.Available = False' does!

Now I'm really confused. I cant be bug visual studio bug surely??

 

[HarleyQuinn]

Just to clarify, when you say

ButtonName.Enabled = False

This does not seem to work. Any help would be appreciated.

What do you mean, you can still click the button?

The .Available property will hide the button/menuitem from the users view (effectively disabling it), whereas .Enabled will leave the button/menuitem on the menustrip/toolstrip but grey it out so it can't be clicked.

What do you want to happen when you disable the control?

The only reason I ask is that .Enabled seems to work perfectly well for myself and everyone else in this thread so I'm pretty much ruling out a problem with VS.

HarleyQuinn
---------------------------------
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[klornpallier]

I want the ButtonName to be disabled and greyed out when I click another MenuToolStripButton.

 

[HarleyQuinn]

Could you show us the code you've got using .Available that works?

Just to clarify as the terminology is getting a bit 'all over the place', the button you want to disable is on a ToolStrip yes?

HarleyQuinn
---------------------------------
Carter, hand me my thinking grenades!

You can hang outside in the sun all day tossing a ball around, or you can sit at your computer and do something that matters. - Eric Cartman

Get the most out of Tek-Tips, read FAQ222-2244: How to get the best answers before posting.

http://lessthandot.com