I'm trying to go to a different form my main form and while I'm using the selected form I want the MainForm to hide. I've put the code MainForm.Hide() at the top of the code of the JobInformationForm where I'm directing the program. I thought this would cause the MainForm window to hide. However, I'm getting an error saying Declaration is Expected. How do I use this MainForm.Hide() feature?
View 3 Replies
Is there a way to hide a method of a base class that has been inherited?Lets say the base class has the properties:
x
y
Height
Width
and the method
sub SpecialInstructions()
Now this class is inherited by some classes that either use the SpecialInstructions method or override it. But one class inherits it but cant make use of the method and therefore wants to hide it. I tried shadowing but it still seems that the method is visible ex
Private Shadows Sub SpecialInstructions()
I have a Class A that inherits from a base class. In the class A i have build some methods/properties.What I want is that some methods/properties from the base class are not visible in the intellisense which makes it easier for a developer. Basically i want to hide all the methods/functions/etc.. which are no use.Is this possible whithout having to use the EditorBrowsableAttribute for every item?The best way would be to tell the class that it must hide all props/methods/functions/etc... and after that i can specify which MUST be visible.
'by default hide all props/functions/etc.... ????
Public Class Test
Inherits ComboBox
[code]....
I would like to make sure that certain properties/methods of native framework methods are not called in a project I'm working on. I want to use custom methods instead, and make sure that those methods are always used. How would I do that?
These are the details:
In a rather large web project, we have several pieces of code creating and sending email messages using the MailMessage object. I want to perform some additional checking, logging etc whenever an email address is added to either the To, CC or BCC MailAddressCollection
of a MailMessage object. Basically I'd like to make sure that it is not possible, in this entire Solution, to do this: MyMailObject.To.Add(something@somwhere.com), and the same for "CC" and "BCC".
First, I thought about not using the MailMessage object at all, but inherit it and override the methods that allow adding of addresses. I ran into some trouble though when trying to shadow the "To" property, since "To" is a reserved word... And then I realized that it probably wouldn't solve my problem entirely anyway, since there would be nothing stopping another developer (or myself being stupid) from creating an instance of the original MailMessage class and use it at will.
I have successfully created a method which centralizes all the adding of various recipient addresses, but I can't figure out how to prevent the original methods from being used by mistake.
I would like to inherit from the Data.DataColumn in order to produce a DataTextColumn. That means that in the derived class, I dont want to see the non-applicable AutoIncrement property and the like - all I want to see are properties that apply to string types.[code]...
View 5 RepliesWhy do Me.Hide() And me.visible do nothing under form loading event? Now the obvious answer to me was because how could you call a form to hide if it has not loaded. Make's sense to me. So i checked the documentation to see what options i had. If the form isn't loaded when the Hide method is invoked, the Hide method loads the form but doesn't display it. Interesting. So from what i gather here me.hide should still hide the form. Or have i misinterpreted the documentation? Because the form does still display. Neither also work under Public Sub New().
The only solution i found was under sub new was to change the forms opacity to nothing. Which works fine. But after reading the documentation on Opacity i am still left with another question regarding "Visible vs Hide Vs Opacity" Calling me.hide makes the forms visible property false, Calling opacity set to Nothing makes the form in visible. Both these methods do the required task but does one take up more memory or should be favored over the other? Just because some thing work's i have learned it is not always necessarily the best way to do something.
I want to create a custom control (let say textbox), after build, when I place that custom control on a form, all the properties for the default textbox are available.
1- How to Hide them and only show the wanted property and method?
2- Is there a Wizard or custom tool for creating custom control or I had to do every thing by coding?
[code].....
View 1 RepliesI made a birthdaylist. You can store birthdays in it, and it will alert you on the day a person has his birthday. To do that the program has to startup when the computer starts up, and give the alert if neccesary and then close itself again. This all works, but the mainform is visible in that period.
View 5 RepliesI have mainFom and a subForm. what I am trying to do is application startup MainForm is Loaded
(2) in the Load event of mainForm. I am creating the SubFom and made it visible and also making MainForm disable
[Code]...
I have a MainForm which has tab Control and several independent form. I open each Individual From in the tab of the main form. A "Close Tab" button on the MainFrom closes the current tab, its implementation is below.
This closes the current tab but what I also need is to dispose the From whose tab is closed but I am not sure how to get the instance of the form.'[code]...
Is it possible to position a messagebox in the center of your MainForm instead of the center of the computer screen? This is really confusing for beginner computer users, if your mainform will be in the top left corner and the message box in the middle of the screen, it won't be very clear that the messagebox belongs to your application. (well to us it is, but not to old people).
View 3 RepliesI have done programs in the past with VB6 using the winsock control to receive data to be processed. I would like to do the same thing in vb.net but I am having problems. I have done numerous searches and consulted numerous books and articles, but haven't found the best approach for accomplishing the following.
I would like from 1 to 20 clients to be able to send a string to the server to be processed. It would be nice to if the clients could connect to same port and use async processes to open/accept more connections. One of the books (Visual Basic 2008 Recipes) has a recipe for creating "Multithreaded TCP Server that supports Asynchronous Communications".
I am trying to base my program off of that example and modify it for my application. The problem I am having is how to share data with the Main form and the classes that handle the communications. The TCP class has two classes contained in it. One class for listening for connection, beginning the accept client and the other class (clienthandler) for completing the connection and getting the data. I would to be able to get the data from the clienthandler class and post on the main form. I have trying to have a public property for the data but I think my confusion comes in because the clienthandler would be created new for every new client. The mainform would not know how many of the new clienthandlers were created etc.how get the data to the main form and clear the data when done. I have even considered putting data into MSMQ and having main form pull data out.
Currently, I have a LoginForm that authenticates a user and it works fine. I have a MainForm, which is displayed if a valid username and password is entered. I have done this by using the following code in my LoginForm:Private Sub OK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
[Code]...
Now this does exactly what I want except I fear it's a work around and it's not the best approach. Also, note that I am using Me.Hide() to hide the LoginForm, is there a way to show the MainForm and then close the LoginForm instead of hiding it? Doesn't Me.Hide() call creates an overhead?
Consider a MyForm class that contains a shadowed implementation of Show(). It also contains a CreateForm() method, which accepts an instance of the form and calls the shadowed sub:
[Code]....
frmMDI is the main form, I want to be able to open a child form but change the mainmenu to go with that form. I am having a heck of a time getting this to work.
When I close said childform i want the main menu to revert back to the starting mainmenu.
I have 2 FormsOne is my mainform, one is a "child" form.The childform has no control box.he mainform has a toggle button to show and hide the childform.
Private Sub ButtonShowHideChildForm_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ButtonShowHideChildForm.Click
If ChildForm.TopMost Then
[code]....
How could i set all subforms' icons inheritate from mainform icon?
i tried this - me.icon = form1.icon - in the subforms, but is not working.
I'm curious if it is possible to hide a group of text boxes from view in a form until a particular condition is met, and to have a custom set of text boxes for that condition. To give an example; I want radio buttons offering choices for a manner of searching records, the user selects one and then a specific set of text boxes are displayed for the user to utilize, if a different option is chosen a different set of text boxes will be shown. Is this something that can be done?
View 7 RepliesI'm creating an app, with a splashscreen, loginform (just enter a name) and a mainform.With I use my.settings. Now here comes the issue I run into.The splashscreen should check (onload) if the my.settings.user contains any info, if it does, the mainform should be shown, if not the loginform should be shown. On my app settings I have splashscreen set to the splashscreen and the first form is set to login form.
[Code]...
I've made an app with vb 2010, which holds a mainform. On it is a menutoolstrip with button, when I click on that button a second form is opened on a second monitor and the button is being checked (different color).
When I click the button again, it is unchecked, but the form on the second monitor is still open, while it should be closed.
Here is the code I use:
CODE:
I know one can select Spash Screen as the application startup as per this illustration. I can't do that however because the application is called by another program which passes in parameters via Process.Start(). Depending on the passed in arguments, I need to either
Go Directly to the MainForm or Go First to a Splash Screen which will then to the the Mainform after 5 seconds.
I definitely need Step 2 above because of the slow startup time of creating an SocketConnection and the population of some Custom Controls only after the Socket connection has been established.
Would I use a startup class or module and then use that as the application startup 'form' which could be establishing the SocketConnection while also launching a Splash Screen?
What I'm trying to accomplish is for the user to select a menu item(New Tester) from the MainForm(only used for menu)to open the NewTesterForm and enter a rating from 1 to 10( 10 being the best) for two different drinks. When the user clicks the ok button on the NewTesterForm it adds the new rating to the totals. It keeps adding the rating totals until a user clicks the cancel button which returns to the MainForm. When the user clicks on the MainForm menu item Summary, The SummaryForm opens and displays:
-average rating for each drink which drink had a higher rating(the name of the drink)the total number of testers
[Code]...
I am having trouble with the scope of some of my variables. I declare some structures in the load event of my Splash Screen.
[Code]...
How do I make a splash screen with a progressbar that value changes base on the MainForm_load event? Example:When the mainform finished executing part of mainform_load, the progress bar in the splash screen changes to X value (eg 50)When mainform_load is executed completely, the progress bar moves to 100%, the splashscreen closes and mainform opens.
View 1 Replieshow to hide exe into task-manager in windows 7 using vb.net windows application?I want exe is hide into task-manager in windows 7 & windows vista machine using vb.net(windows application)
View 3 RepliesIs there a way to to hide the taskbar o.o and unhide it?
View 1 RepliesWhen the user clicks on the Quit menu item in my MainForm, some code is executed and then the program closes - this all works fine. But should the user click the "X" on the MainForm, I'd also like the MnuQuit_Click code to execute. The below code compiles with no errors, but clicking on the "X" does not execute the MnuQuit_Click code. I'm sure the answer is a simple one,
[Code]...
I have a settings form and a main form the main for collects information from the settings for and stores it into variables (public XXXX as string) but on my Save button it is supposed to save the information in the main form and show the main form. But it get an error on the first line containing: "MainForm.VARIABLE", The innerMessage says it cant create the form or something, but here is the code from my save button:
(I know that this isn't the right block of code because this doesn't really show anything, but if anyother code is required then just tell me and ill post it. The error actually occurs on "MainForm" itself, how do i fix this?)
Error is: An error occurred creating the form. See Exception.InnerException for details. The error is: Object reference not set to an instance of an object.
Dim r As New Random
MainBot.Max = txt_Max.Text
If RB_Manually.Checked = True Then
[CODE]...
I want to dynamically call form, but after the form is closed and reopen i got the error "Cannot access a disposed object named "MainForm"". I've been searching about this error and found out that basically i'm trying to access invalid control.
My question is how i can use the object again? I mean closing and opening form is very common thing to do, so it should be able to be accessible trough the run time. To give you better perspective [code]...
