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.NET Forum / Windows Forms / WinForm Controls / January 2006Manual set the ID of an System.Windows.Forms.Control
I need to set the controlid of a text box manually. It seem that the id of an control now changes everytime i start the application. I need this for an single logon-form to make the singlesignontool http://www.passlogix.com/ work. (The use of ControlId´s was very common used in com-windowsapplications.) thank you paul "paul" <paul@discussions.microsoft.com> schrieb: >I need to set the controlid of a text box manually. It seem that the id of >an > control now changes everytime i start the application. Which ID are you referring to?  SignatureM S Herfried K. Wagner M V P <URL:http://dotnet.mvps.org/> V B <URL:http://classicvb.org/petition/> "Herfried K. Wagner [MVP]" schrieb: > Which ID are you referring to? The control ID of any Control. It is shown with Microsoft Spy++ for all "ControlWindows". Spy++: After "finding" the control it is shown in the General-tab in the "Window Property". thank you paul Try to see if this is the Handle property. If yes, the principle would be then to pass this value whatever it is to this low level API... Good luck. SignaturePatrice > "Herfried K. Wagner [MVP]" schrieb: > > Which ID are you referring to? [quoted text clipped - 6 lines] > thank you > paul >Try to see if this is the Handle property yes, it ist the handle. How can i manually set the handle in a save mode? This is AFAIK exactly as a file handle that is just some kind of unique value that is initialized by the OS... IMO you could just read the value whatever it is and pass this value to the API you are trying to use... (I find a bit strange a Single Sign On API needs to go at such a low level, are you sure they don't mean that you should pass some kind of value that uniquely identifies the user ?) SignaturePatrice > >Try to see if this is the Handle property > yes, it ist the handle. How can i manually set the handle in a save mode? > This is AFAIK exactly as a file handle that is just some kind of unique > value that is initialized by the OS... this would be a problem - in special case the same logonwindow would be shown twice. So i have to change only the control Id (how?) or find an complete alternative solution. > (I find a bit strange a Single Sign On API needs to go at such a low level, > are you sure they don't mean that you should pass some kind of value that > uniquely identifies the user ?) The write the username and the password directly in the LogonWindow. (not only in our app) regard paul Someone else would perhaps popup but IMO your best bet is likely to try a group focussed on C/C++/Windows API and explain there the details. AFAIK this is just defined by the OS and you can't define this yourself (this is AFAIK basically a pointer into OS maintained structures). The last resort I see if the problem is that the value change would be to keep this windows around for the whole application lifetime. You can't define the value but this way it will be always the same for a given session. Also you could just perhaps call again the API when the window is created again so that this API is aware of this change... Good luck... SignaturePatrice > > This is AFAIK exactly as a file handle that is just some kind of unique > > value that is initialized by the OS... [quoted text clipped - 11 lines] > > regard paul "Patrice" <a@bc.c> schrieb: > Someone else would perhaps popup but IMO your best bet is likely to try a > group focussed on C/C++/Windows API and explain there the details. AFAIK > this is just defined by the OS and you can't define this yourself ACK. Handles are chosen by the operating system. SignatureM S Herfried K. Wagner M V P <URL:http://dotnet.mvps.org/> V B <URL:http://classicvb.org/petition/> >I need to set the controlid of a text box manually. It seem that the id of an >control now changes everytime i start the application. I need this for an >single logon-form to make the singlesignontool http://www.passlogix.com/ work. >(The use of ControlId´s was very common used in com-windowsapplications.) Control ID isn't the same as the handle (HWND). I'd expect the sign on tool to use the control ID since it's usually constant whereas handles can differ every time you create a control. You can't directly influence which control ID a control gets in Windows Forms. But IIRC it should be the same every time as long as you don't modify the form. I belive it's derived from the order the controls are added to the form or possibly the z-order. Mattias SignatureMattias Sjögren [C# MVP] mattias @ mvps.org http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com Please reply only to the newsgroup. Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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