I have written a calculator program, and when the mouse clicks on the equals button, the button sets a boolean varaible to true, and then that variable can be used later.But I am wondering if the button control has it's own property that can indicate if it has been pressed?
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I have already done the creation of button and the dragging of button at runtime already.But now i need to know how do i save the last dragged button on the form and also detect the name of the last clicked button.so lets say i now drag a button to coordinates 25,254. so when i exit the form and the next time i launch it, the button will still be at 25,254. and this one will go on for the number of button i created like 100. so when i launch the form the 100 button will be at the exact position where i last saved them.the second part is lets say i created button1 and button2 on the form in runtime. so when i clicked the first button, it should display button1. and if i clicked on button 2, it should say button2. same goes for like 100buttons.
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I am developing an application in Vb.net 2008.In it I wish to add a conformation message box when ever someone attempts to close the application window.So I want to detect that some one has clicked on close button which is present on title-bar of my window.
View 3 RepliesI am trying to move texts in a richtextbox from 1 place to another and I want to use a Move button.[code]
View 7 RepliesI was working in a Game in VB, and I was making a Loop that will start when the game begin and end when someone win.But then I found a problem:I have my main code in the loop and a Randomizer that starts when a button is clicked.So my problem is that I can't work whit the random number in my loop. How can I access the random number (it as to be choosen after a click of a button) in my loop?!
View 3 RepliesI have the following code in an Asp.Net user control:
Me.pnlAddComment.Visible = MyBase.Associate.IsAgent()
Me.lblRating.Visible = Me.pnlAddComment.Visible
Me.Rating1.Visible = Me.pnlAddComment.Visible
Now when I run this code, the value of MyBase.Associate.IsAgent() is true. Yet at no point is Me.pnlAddComment.Visible evaluating to true. When I output the results as Response.Write statements, it shows IsAgent = True, pnlAddComment.Visible = False. When I run it in debug mode, placing the line break on the second line above to allow the set to occur: I put the mouse over IsAgent and it displays "True"; I put the mouse over pnlAddComment.Visible and it displays "False".
A Co-worker suggested that it's possible that it's Panel.Visible black box code in the getter that allows the assignment to occur but returns false because some parent object is set (at that point in the code execution) to False. I've reviewed the parent objects and at no time do any of them appear to be set to not visible.
If this were a reference type I might be convinced that some other process is modifying the reference between this assignment and when it is actually used (at Render), but this is happening right at this line of code.What would cause this boolean assignment to behave this way without throwing an exception?
Solution:The answer turned out to be a parent object in the control hierarchy located outside of the user control itself. Since nothing was explicitly set to false, and I agreed with @Shadow Wizard, @Damien_The_Unbeliever and @CodeMonkey1 that it had to be some outside control influencing the panel at that point, I decided to put a recursive while loop to test the parent of each user control in the hierarchy at that point:
Dim o as Object = Me.pnlAddComment.Parent
While o IsNot Nothing
Me.lblMessage.Text &= "<br />" & o.ID & ": " & o.Visible.ToString()
o = o.Parent
End While
Then I just ran this on the server and the output came back with the full visibility of each control in the chain. What ended up occurring is that this control was contained within a view control within a MultiView. This view control is expected to be visible as it is supposed to be the ActiveView for this particular call, but at the point in the life cycle when my code is run, the view has not been identified as the active view. Since it's not officially active, the view is implicitly false, and all child controls return a value of false when Visible is queried.
The rest of the assignments behave as expected from that point. The lblRating control is set to false (permanently) because at that moment the proper visibility setting for pnlAddComment is false. The lesson I've learned here is not to make control visibilities dependent on each other in this fashion when there is an alternative (and just as simple) method.
I want my program to detect and do something when ToolStripMenuItem is clicked.
View 1 RepliesUsing 2 forms how would I click one button, from another form? ie In VB 4,5,6, I would used to do it as:-
Form 1:
private sub Command1_Click()
msgbox "Say Hello"
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If I clicked the button in form2, it would automaticlly, click the button in form1. Do I, do it the same way in VB Express or has it changed?
i need to know exactly when a checkbox is checked either by clicking or by spacebar.
I have looked at cellbeginedit, cellclick, cellcontentclick,cellendedit,cellformatting,cellleave,cellpainting,cellvalidating,cellvalidated,cellvaluechanged, and cellvalueneeded.
None of these inform me of when the checkbox value is changed. cellclick is almost the one, but it fires before the value is changed. cellvaluechanged doesnt fire until you leave the cell. the cell value changes and the cell is painted even if you dont leave the cell.
I have spent all day trying to get it right. I want to detect exactly when the checkbox value is changed so i can do some calculations and depending on the calculations, i may cancel the check mark.
I want to make one Private Sub for all of my Linklabels. The only variable should be the text value of each individual Linklabel, since all the labels inherit different texts during my program.Lets say I have about 200 Linklabels of which 40 have specific texts. The other 160 have "Linklabel" as a text.How can I create a variable that refers to the text of the label in the code?
Would it be something like this?:
Private Sub ActionForAllLinkLabels(ByVal something As something, ByVal somethingelse As somethingelse) Handles LinkLabel1.LinkClicked, LinkLabel2.LinkClicked,
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How can i get the program to detect if cancel was clicked? Right now when i click cancel the inputbox does not close and simply comes back up saying enter a number. Do i have to do something boolean related or something?
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How do I detect when a link is clicked in my browser, and then if it has a .wmv ending, execute a command to play it with my built in Media Player?The only code I need is to find when a link is clicked, and what the target url of the link is.
View 2 RepliesIs there a way to detect when a label is clicked without doing on click events for all the labels? I want to be able to detect the click, find what has been clicked, then I can change the label since I'll know which one has been clicked.
View 11 RepliesIs there anyway to detect on Mouseup when column is being resized not cell clicked?
View 5 RepliesI can do the context menu. When I'm NOT using a context menu, I can detect a right-click using the mouse click event.BUT how do I detect which cell that's beiing right-clicked on in a datagrid WHEN a context menu is being used (as the mouse-click doesn't seem to fire when a context menu is used - so I assume that the menu mechanism consumes the right-click message and doesn't pass it on so to speak).I have tried to manually call the context menu on a right-click, but then the context menu comes up at the wrong location.Rather than send a long listing of my multinedia program so far - here's something I tried as a separate proglet. I can send the long multimedia project listing if you like (so you can see why this it is important to resolve this little issue).
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I have numerous buttons on a form, one each to select a playing card (52 buttons). When the Card(button) is selected I want to highlight it by changing the border from black to Red, then if reclicked from change back from red to black, easy enough (if then else). So that I do not have to copy this code 52 times I wanted to create a module as follows:
Sub ChangeButtonBorderColor(ByRef ButtonName)
If (Equals(ButtonName.BorderBrush, Brushes.Red)) Then
ButtonName.BorderBrush = Brushes.Black
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How to make a link button visible after another button has been clicked in asp.net(vb) in button_click()
it says error as "Object reference not set to an instance of an object."
i've done this in my code
Protected Sub InsertButton_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Dim receipt As LinkButton = FormView1.FindControl("LinkButton1")
' receipt.Enabled = "true"
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I have created a DEMO project to illustrated what I am referring to. I have a simple form, the button is set to Enabled False in the property inspector. When the user complete the form controls(fields) the button is Enabled. Everything seem to be working except the following:
When the user completes all the field, they must type twice in the MaskedTextBox for the button to be Enabled.
Even though there is no actual characters typed in the box because of it's restrictions, why do I need to type twice in the MaskedTextBox before the button is Enabled. Here is my code:
Public Class frmActivateBtn
Dim blnCheckName As Boolean, blnCheckPet As Boolean, blnCheckColor As Boolean, blnPhoneCheck As Boolean
Function turnTestButtonOn()
If blnCheckName = True And blnCheckPet = True And blnCheckColor = True And blnPhoneCheck = True
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From what I read it is a good convention to name a method that returns a boolean value with the prefix of "is" or "has". So in keeping with this convention I am trying to name a method in my program with this prefix but I am running Specifically I have a class called Day. It is a simple class with a few data members and one method that returns a boolean value of true or false. The name of the boolean variable is isSpecialDay. This class has a method called isSpecialDay which takes the date of the day, applies some criteria to the date and then sets the variable isSpecialDay to true or false. My problem is that the boolean variable is named isSpecialDay and so it the method. What should I do?
Public Class Day
Private TheDate as String
Private DayName as String
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i have a form with 10 designated slots for letter to be entered (Like the free letter spaces on hangman), above these are 10 adjacent labels with a full stop "." as the text value, now i have created a button, Q to detect whether there is a. in the first box, and if there is enter the letter Q (Letter1.text = "Q"), elseif check the same for the second box. Now my problem is when i click the button, it still does nothing and letter 1 remains "." instead of "Q". also how would i end this string of else ifs? as in what if every text box is full then do what?
View 2 RepliesI am developing an application in which there are more than one buttons and i want to add some code on the click of every button, But I wished to know that which button has to be clicked by the user and after that some code will be executed and that code will be different for different buttons.
View 1 RepliesI have partially coded a project seen below:
Public Class frmBroadwaytickets
'Defining the cost per ticket
Const _cdecticketprice As Decimal = 153.5D
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My btndisplay cost works, but my btnexitprogram does not close the application when clicked. I've ensured the button is correctly named and enabled. But when I click it does not close out, I use this simple code in other programs and it works.
I have a calculate button that, if clicked more than once adds the total of what I previously had to the new total as I am using a loop. I was thinking that I could get around this by only allowing the button to be clicked once, and if the user attempts to do this more than once a messagebox will appear saying that you can only calculate the price once and the form resets but i can't seem to get any code working.
View 4 Replieshow can i check if a command button is clicked in vb.net 2003?
View 1 Replieshow can I get this .bat command to run after my button is clicked I can make it like, "Run a certain .bat when button is clicked" , but I don't want that because people can go inside my .bat and hack my IP. So I was wondering is there a way I can put that .bat command into my VB 2010 Express
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Private Sub Button_Click() Handles Button1.Click, Button2.Click, Button3.Click
MsgBox()
End Sub
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how can you make a song play in vb 2005? I want it to play after a button is clicked.
View 2 RepliesI need an example of a code that disables its function of the button when its pushed more than 1 time..
how can i arange that?
so an example:
2 buttons 1 label
when i press "button 1", label get a number 1
when i press button 1 again, label is still number 1
when i press button 2 and after that button 1. the label got the number 2!
I am working on a project and i am required to set up a 2d arrray of buttons. This part is fine and working. My problem is detecting the name of a button when it is clicked. I have a feeling it has something to do with sender, but i just can't crack it. If you need more info or code, then just ask.
View 10 RepliesThere are a lot of interesting methods buried in VB.NET, and I'd hate to miss the one that "flips" a Boolean value.
What I'd like to do is something like:
Dim MyBool As Boolean = False
If <true statement> Then MyBool.FlipValue
Of course no method like that seems to exist in the Boolean type itself, but maybe there's another single-statement method that will accomplish the same thing.
