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.NET Forum / .NET Framework / General / August 2006Display User control features on one form and not the Other!!!!!
I have a User control that is used on two forms. I would like to enable certain buttons on one form and not the other. I presume I would put an If statement in the user control code. could anyone tell me how the if statement would read? > I have a User control that is used on two forms. > [quoted text clipped - 3 lines] > > could anyone tell me how the if statement would read? Do you mean you have two seperate instances of the control on two seperate forms, or you have one instance of the control shared between the two forms? I have two seperate instances of the control on two different forms. I want to enable certain features on the user control if it is open in form a. Does this help? > > I have a User control that is used on two forms. > > [quoted text clipped - 7 lines] > seperate forms, or you have one instance of the control shared between > the two forms? > I have two seperate instances of the control on two different forms. > > I want to enable certain features on the user control if it is open in form a. > > Does this help? Sorta... I haven't seen your project so I don't know 100% what you're trying to do. There's probably a large number of ways you could do this. Also, are you working in VB 2005, or C#?, or C++? When you say "enable", so you mean you have UI controls where you want to say "someControl.enabled = false"? Well, in Form A, you could just add code in the FormLoad procedure that says "myControl.someFeature.enabled = false" for every feature you want to have disabled. If you want to be able to do this through the designer, you can add properties (I'm gonna assume you're in VB 2005, I don't know if C# has similar features) to the code of the control itself, such as: property enableFeatureOne as boolean Get() as boolean return Me.featureOne.enabled End Get Set (value as boolean) Me.featureOne.enabled = value End Set End property (It's monday morning so my syntax may be off ;) ) Then you can enable or disable the features right from the design view of your Form A. (if you do it this way, make sure you rebuild the project before attempting to use this property in the design view). hope this helps. Monday mornings are evil! :) Im using vb2005. I have two forms (e.g. form a and form b)with the same user control on both. The user control contains a host of buttons. I want to be able to open form a, and press a button and a message box will appear. Whereas if I open form b and press a button - nothing happens! Make sense? I dont like Mondays at all :) I have managed to accomplish this but not in the best way ... I have put a text box on both forms assigning the value 1 and 0. In the code on the user control button I have put an if statement on the Click button procedure that read If forma.textbox.text=1 then msgbox("Message") Endif I think the following if statement would be appropiate in the user control if form a is active then msgbox("message") Hope you can help? > > I have two seperate instances of the control on two different forms. > > [quoted text clipped - 31 lines] > project before attempting to use this property in the design view). > hope this helps. > I have two forms (e.g. form a and form b)with the same user control on both. > The user control contains a host of buttons. I want to be able to open form [quoted text clipped - 11 lines] > > Endif Ugh... ugly way to do it. I can think of at least 2 other ways... Put a private member in the code of each class. Something like this... Public class formB inherits Windows.System.Forms.Form Private buttonsAreActive as boolean = false ... and in the other form: Public class formA inherits Windows.System.Forms.Form Private buttonsAreActive as boolean = true Then, you can change your code to look like this: 'In FormA: if buttonsAreActive then 'Do stuff for active buttons end if 'in Form B: if buttonsAreActive then 'Do stuff, but it will never happen because in FormB you set buttonsAreActive to 'False! end if You could also do it by putting the "buttonsAreActive" in the control as a property, and adding the behaviour when you click on them to the control (the way I would prefer to do it). Create a property on the user control. If it is a simple case of showing/not showing controls on the user control, then maket he property a boolean. Set it to true on one form and false on the other. The user control can then show/hide the required controls based on this property. > I have a User control that is used on two forms. > [quoted text clipped - 3 lines] > > could anyone tell me how the if statement would read? 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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