[VB.NET 2008] How to detect if a page of a TabControl is selected (Windows CE)
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Hi, I'm developing an application that runs in a Windows CE 5.0 environment and I'm using VB.NET in Visual Studio 2008 Pro. In a Form I have a TabControl with some pages. My problem is to understand when a page of the TabControl is selected to perform some actions in that page automatically. In the Compact Framework there isn't the event
Control.Enterso I can't use it, that would be the right one... Does anyone have any idea? Thanks -
Hi, I'm developing an application that runs in a Windows CE 5.0 environment and I'm using VB.NET in Visual Studio 2008 Pro. In a Form I have a TabControl with some pages. My problem is to understand when a page of the TabControl is selected to perform some actions in that page automatically. In the Compact Framework there isn't the event
Control.Enterso I can't use it, that would be the right one... Does anyone have any idea? ThanksTaking a look at the documentation.... Documentation Shows us that the Tab Control notifies the PARENT object using WM_Notify messaging. So you need to look into WM_Notfication messages. A little more can be found here Look under Notification section
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Taking a look at the documentation.... Documentation Shows us that the Tab Control notifies the PARENT object using WM_Notify messaging. So you need to look into WM_Notfication messages. A little more can be found here Look under Notification section
Thank you Zaf. You gave me some useful information. I honestly do not know well how to use the WM_NOTIFY messages but looking on google I found various information about it, maybe something like this:
Const WM_MESSAGE_TO_MANAGE As Integer = ... 'integer value of the message
Protected Overrides Sub WndProc(ByRef m As System.Windows.Forms.Message)
If m.Msg = WM_MESSAGE_TO_MANAGE Then
'things to do
End If
MyBase.WndProc(m)
End SubIn the specific situation I solved my problem in an alternative way (I don't use more different pages of the TabControl but on a single page I add N UserControl and step from one to another with buttons and I use the Click event to do what it takes) but surely this method can be useful to me on other occasions so I will look into the subject. Thank you very much.
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Thank you Zaf. You gave me some useful information. I honestly do not know well how to use the WM_NOTIFY messages but looking on google I found various information about it, maybe something like this:
Const WM_MESSAGE_TO_MANAGE As Integer = ... 'integer value of the message
Protected Overrides Sub WndProc(ByRef m As System.Windows.Forms.Message)
If m.Msg = WM_MESSAGE_TO_MANAGE Then
'things to do
End If
MyBase.WndProc(m)
End SubIn the specific situation I solved my problem in an alternative way (I don't use more different pages of the TabControl but on a single page I add N UserControl and step from one to another with buttons and I use the Click event to do what it takes) but surely this method can be useful to me on other occasions so I will look into the subject. Thank you very much.
Hello Steve, I came across the WM_NOTIFY message and (inter?) windows messaging in the REBAR control (ribbon/taskbar) manipulation code sample on the microsoft website which also provided me with a sample implementation that i found understandable, during the time when i was learning microsoft VB5 CCE.