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Focus Method Does not Set Focus to Control on a Tab Control
| Article ID | : | 949667 |
| Last Review | : | February 25, 2008 |
| Revision | : | 1.2 |
Source: Microsoft Support
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RAPID PUBLISHING ARTICLES PROVIDE INFORMATION DIRECTLY FROM WITHIN THE MICROSOFT SUPPORT ORGANIZATION. THE INFORMATION CONTAINED HEREIN IS CREATED IN RESPONSE TO EMERGING OR UNIQUE TOPICS, OR IS INTENDED SUPPLEMENT OTHER KNOWLEDGE BASE INFORMATION.
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Action
You are programmatically controlling the user's movement between controls within a Tab control on a Microsoft .NET Framework Windows Form. The Windows Form contains a Tab control that has a number of controls distributed on different tab pages. For the last control on the tab page, you use the Focus method to set focus to the desired control on the next tab page.
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Result
Focus does not shift to the desired control on the next tab page. Instead, focus shifts to the next control in the tab order on the parent form.
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Cause
This occurs because the desired control is not currently visible, since the tab page containing it is not currently active. Â
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Resolution
Select the containing tab page of the desired control and then call the Focus method to set focus to the control. You can do this by calling the SelectTab method of the Tab control prior to calling the Focus method.
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More Information
In order for a control to receive input focus, the control must have a handle assigned to it, the Visible and Enabled properties must both be set to true for both the control and all its parent controls, and the control must be a form or the control's outermost parent must be a form. For more information, please see the following topics in the MSDN Library.
Control.Focus Method
http://msdn2.microsoft.com/en-us/library/system.windows.forms.control.focus(VS.80).aspx (http://msdn2.microsoft.com/en-us/library/system.windows.forms.control.focus(VS.80).aspx)Control.CanFocus Property
http://msdn2.microsoft.com/en-us/library/system.windows.forms.control.canfocus(VS.80).aspx (http://msdn2.microsoft.com/en-us/library/system.windows.forms.control.canfocus(VS.80).aspx)Back to the top
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APPLIES TO
| • | Microsoft .NET Framework 1.1 |
| • | Microsoft .NET Framework 1.1 Service Pack 1 |
| • | Microsoft .NET Framework 2.0 |
| • | Microsoft .NET Framework 2.0 x64 Edition |
| • | Microsoft .NET Framework 3.0 |
| • | Microsoft .NET Framework 3.5 |
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