VS 2008 Dealing With Appearance Of MDI Form
Jan 14, 2010
I have a main form which contains a few buttons...some of those buttons open up smaller forms...there is also a button for each of those smaller forms, which should let me bring the chosen form to the front and give it focus...basically like the tabs in your task bar let you switch between which program you are using...but I'm having trouble with this...I need to click the button 2 times before the form I want comes to the front...the first click removes focus from the currently activated form the second click then moves the form I want to the front.I need this to happen in one click..I[code] figured out the exact cause of the problem.it's due to the fact that the first click doesn't actually take effect since the child form has focus...so the first click actually just transfers focus to the main form...the second click does what it should.I knew it was going to be extremely obvious.so the question now becomes...how can I overcome this if that is possible at all...I know I've seen applications where I can still activate functions of the parent form in one click even if I have a child form open and focused.And it's basically what I need...it does what I want and lets me switch between child forms in one click...but it stuffs up the entire look of my parent form...the layout and colors get wacky...the transparency of certain things don't seem to work and my background image is gone..
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Jul 22, 2010
am working on my assignment, i wanted to know whether there could be a way in which if i click on sign in on my vb.net button, i could get a pop up or a dialog style message asking me for the username and password. Is there any way or any possibility of carrying out such kind of technique.
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May 24, 2010
I've finished a number of project and feedback has been about the working functionality of them but the general look of .net controls "is aged" in their eyes.For example if I looked a picasa from google. The left meu is a treeview.The main window is a listview and they are seperated by a split container. The buttons look soft and rounded.
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Aug 23, 2011
I'd like to make a GroupBox have a black line as its boarders , just in the old VB6 , but it seems there isn't any such a property . Look , for example in the picture below : First there is GroupBox control but it can only have a line around it without color . Next , there is a Panel control , but the problem with that is that it can't have a caption set . At the far right side there is Panel control with a Label control placed over it . That's the best way I can think of in order to make something that at least will look like with what I have in mind . However , is there any other way I could do that ?
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Mar 17, 2010
I'm noticing this error more and more in my error logs. I've read through the questions here talking about this error, but they don't address what I would like to do (see below).
I'm considering three options, in the order of preference:
1) When submitting a form (I use formviews almost exclusively, if that helps), if potentially dangerous characters are detected, automatically strip them out and submit.
2) When submitting a form, if potentially dangerous characters are detected, alert the user and let them fix it before trying again.
3) After the exception is generated, deal with it and alert the user.
I'm hoping one of the first two options might be able to do somewhat globally...I know for the 3rd I'd have to alter a TON of Try-Catch blocks I already have in place. Doable, but labor intensive. I'd rather be proactive about it if at all possible and avoid the exception all together.
Perhaps one approach to #1 would be to write a block of code that could loop through all text entry fields in a formview, during the insert/update event, and strip the characters out. I'm ok with that, but I'd rather not have to heavily alter all my Insert/Update events to accomplish this. Or maybe I just create a different class to do the text checking/deleting, and only insert 1 line of code in each Insert/Update event. If anyone can come up with some example code of any of these approaches that would be a
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Mar 12, 2012
I want a method of dealing with very, very, very big numbers (potentially a million digits). It is very cumbersome to deal with very big numbers in VB, would another language perhaps be better for that?
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Oct 11, 2011
Write a program that makes change for amounts less than one dollar. Input to the program should be an integer less than 100. Output should be the original amount together with the proper set of coins that add up to that number. The program should produce change consisting of the minimum amount of coins possible. The output should be printed in such a way as to avoid unnecessary amounts.For example:
32 cents should be printed as:32 requires 1 quarter, 1 nickel, and 2 cents Rather than� 32 requires 1 quarter(s), 0 dime(s), 1 nickel(s), and 2 cent(s)
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Dec 22, 2010
I wonder, what is the most elegant way of dealing with the dbnull situation. I have a class, with attribute, let's say: "End_Date", which is being read from database. Type of this variant should be date, but as it's the "End_Date", there might be the situation that something haven't ended yet, and in the database in this field I have a null value.
Right now a deal with the problem this way:
Dim mEnd_Date
...
Public Property End_Date ()
Get
End_Date = mEnd_Date
End Get
Set(ByVal value)
mEnd_Date = value
End Set
End Property
But I am not sure if that's a good way as I don't declare variants as any datatype?
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Jul 6, 2010
I will start a new project, use the queries and dealing with databases using LINQ or SQl ,Which is better to start ???
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Jan 23, 2009
I'm trying to make a program that'll play the card game "War". I've started to code the dealing process, but it doesn't seem to be working. I currently have 3 comboboxes on the form each with numbers representing different cards, 1 that contains all the cards to be dealt, 1 that contains the user's cards, and 1 that contains the computer's cards. I plan to just draw random numbers from these comboboxes for the dealing. However, nothing happens when I click the tool-strip button that's supposed to deal the cards. [Code]
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Sep 5, 2009
i have my program, and i would like to be able to give it a look that doesnt change. What do i mean, i mean like, my programs buttons forms scroll bars etc change with the theme of the pc. How would i stop this? Also, how would i create custom looks for my buttons scroll bars etc.
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Nov 27, 2011
I want to change the order of appearance in which my forms show up.
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Feb 2, 2010
Just started using Visual Studio 2008 and was hoping to convert my VBA UserForms to VB.NET with the intent of upgrading my antiquated UserForm controls to newer Windows form controls that match the operating system.The Windows forms I create in Visual Studio look great, but when I load them in PowerPoint or Excel, the form controls look just as ugly as they did before (e.g. plain, rectangular buttons).
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Dec 25, 2010
I am a beginner who used to use VB5 seven years ago, but am now trying to get up to speed using Visual Basic .NET 2010 Express in XP.
A difference I have noted is that in VB5 my buttons appeared to be three dimensional (raised) due to shading, etc. With VB2010 my buttons are plain 2D. I have not been able to find a property to give them the 3D appearance.Is this a limitation of using VB Essentials? If not, what properties give buttons the appearance of 3D?
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Dec 14, 2011
How do you maintain the appearance of a disabled button in VB.Net? Basically, when I click a button, I want its background colour and font colour to stay exactly the same as before I clicked it.
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Feb 25, 2010
I'm trying to create a ComboBox control with a TreeView style. I have been giving a link to an article by MSDN forums which include a sample as a starting point. [url] I downloaded the sample and convert its C# code to VB. The sample is a windows forms application so I moved the controls of the sample to a new Windows control library. I also modify and added some of the code to try to make it the way I want. Now I'm facing a problem with this control and I need your help to understand why it not behaving the right way. I'm trying to learn and build a ComboBox with a TreeView style.
The control inherits from the windows ComboBox control and when I place it on a form for the first time it look exactly as a CompbBox control but once I run the application for the first time the control appearance become deferent and it's not drowning its self as the windows ComboBox do. When I try to expand its width by dragging one of its sides by the mouse it doesn't work properly. I struggled understand why its behaving this way and how I can correct this behavior but unfortunately I couldn't. [Code]
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Jan 20, 2010
I'm disabling a button in vb.net and when I do, I cannot control the BackColor or ForeColor properties to change the appearance. I set new values for them but they don't get picked up. The disabled button looks almost exactly like my enabled buttons so you can't tell the difference. I'm using Flat Style buttons, but have tried changing this and it still doesn't seem to work. Is there some sort of trick to be able to do this?
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Feb 17, 2011
Why when I wrote in a xml the char "&" it appears & ??
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Mar 7, 2012
Ok so I have a trackbar with a min of 0 and a max of 100. i also have another trackbar with a min of 0 and a max of 75. the problem is, i want the two trackbars to look exactly the same, but since the max's are different, they look different
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Jul 5, 2009
I recently found myself in a thread deling with convertions from decimal number to fractions... Being a bit too brusk and dismissing the idea at first.I have now implemented a structure based on code frm Javelia whithc can be seen in this thread.Solitare also proveided code that I eventually understood and was working.[URL]...it a step longer and developed a structure that can also implement calculating with fractions... My first try is also posted in the tread above...
The implimentation is far from perfect, as it does not deal with POW of fractions.. So if anybody has some ideas on hoe to do this with squer root and all pleas let me know and Ill update the code..
[Code]...
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Mar 3, 2012
Is there to make a button appear as a circle/oval instead of a square/rectangle?
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Dec 14, 2011
I'm building a game using the traditional form view on VS2010 and I'm trying to change the colour of a label's text depending on its contents. I believe I've coded that fine, but the problem is that the settings for the label in the designer view pane are overriding my code!Is there a way to disable certain options in the designer view so that my code can work?
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Aug 5, 2011
I am developing desktop application using vb.net and vs2008.I have a DropDownList that I don't want it interact with use when the info is locked. But if I disable it, it is greyed out and the text is not easy to read.Is there any way to make radiobutton like readonly textbox?I want text of the DropDownList looks black and itself is not clickable.The above shows a disabled DropDownList with greyed out text and a readonly textbox
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Jul 28, 2011
How do I change the appearance of the Code Editor in VB 2008 Express (background colors; font, etc.) from a file that I have ?. I've tried changing the appearance by using the Import & Export Setting in the Options menu, and although it goes to successful completion (or so it says), it doesn't change the appearance at all.
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Oct 26, 2010
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim cr As New Bitmap(4, 4)
[code]......
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Apr 19, 2012
So I am making a file crypter so that I can encrypt my VB.NET Application that I am making so that people can't decompile it. I had made this in C# and am transfering it to VB.NET, Everything worked fine in C# but once I had re-written the code in VB.NET i get this error inside of my RC4 Encryption method:
'Arithmetic operation resulted in an overflow.'
The error is occuring here:
Dim t As Int64 = (s(i) + s(j)) Mod 256
This is the same code above in c#:
int t = (s[i] + s[j]) % 256;
Is there anyway to make that calculation with it erroring? And why does it work in C# but not VB.NET?
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Jan 6, 2012
I have a function called Modify. It is delcared like so:Public Function Modify(Of SIMType As {New, DAOBase})(ByVal obj As DAOBase) As Boolean
You can see that this function is generic. It takes as a paramer a object that is a DAOBase or subclasses of DAOBase.Inside the modify function there is a call like so:
DAOToGP(obj)This is where the polymorphism comes into play. There are four or so subclasses I have created of DAOBase. I have written a DAOToGP() for each of these types. So in the Modify() function, when it calls the DAOToGP(obj), polymorphism should kick in and it should call the correct implementation of DAOToGP() depending on the type that I pass into Modify().
However, I get the following error:Error 20 Overload resolution failed because no accessible 'DAOToGP' can be called without a narrowing conversion:'Public Shared Function DAOToGP(distributor As Distributors) As Microsoft.Dynamics.GP.Vendor': Argument matching parameter 'distributor' narrows from 'SierraLib.DAOBase' to 'IMS.Distributors'.'Public Shared Function DAOToGP(product As Products) As Microsoft.Dynamics.GP.SalesItem': Argument matching parameter 'product' narrows from 'SierraLib.DAOBase' to 'IMS.Products'. C:Usersdvargo.SIERRAWOWIRESDocumentsVisual Studio 2010ProjectsSIMDev_2SIMIMSDVSIMLibGPGPSIMRunnerRunnersRunnerBase.vb 66 39 IMS
I am kind of at a loss here. I am not sure why it cant figure out which function to call.
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Aug 23, 2011
my code works fine in JavaScript but doesn't work correctly in Firefox or safari and wondering why. What I'm doing is I have a loop going through each element and depending on the variable inside a text box just want to alert something. Like i said earlier this code works fine in IE. Here is the code below:
Here is an example of text box:
<asp:TextBox ID="txtMac" runat="server" req="yes" errMessage="Mac"/>
for (a = 0; a < theForm.elements.length; a++) {
if (theForm.elements[a].type == "text" && theForm.elements[a].req == "yes") {
alert("Made it here")
}
}
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Jul 19, 2011
Problem dealing with apostrophe in filter?
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Sep 21, 2009
I've been messing around with prime numbers for a while now, but I now want to use massive numbers, say a few million digits in length. Is there a way of storing and performing mathematical functions with such large numbers? Is it even possible on my home computer? I read on another old thread, something about a big number library, but the links he gave are now dead.
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