How would I use Select Case with GetAsyncKeyState? Ive tried Select Case GetAsyncKeyState End Select and I get Argument not specified for parameter 'vKey' of 'Declare Ansi Function GetAsyncKeyState Lib "user32"(vKey As Long) As Integer'.
View 2 Replieshere is my code..
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If the result is 86 and it's mod by 43 the answer is 2 Case 2 is not firing. it just goes to the end of the procedure.
How would I get select case to work with combobox? So lets say I have 3 items,
Choice 1
Choice 2
Choice 3
How would I use select case to execute code when a certain item is selected?
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convert this if-else-then statement to select case.
what is the propert way to use Case statement for;When user click on a button it will show different picture everytime.I do not want a random generator. Just show pictures in order
View 10 RepliesIm trying to get pass len from a shared class but when i call it. I used a case to select how long the pass len is but it doesnt select any case.
class name : PassLenCL
Public Shared Function PassLen(ByVal PassTxt As String)
Dim TextLen As Integer = PassTxt.Length
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I'm trying to have this WebBrowser1.Document.GetElementById("box").SetAttribute("value", Random)" I want to have a random Text from selection like
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When my form loads it adds some handles (using AddHandler) to a sub (showStatus). What this sub does is checks which control activated the sub (using sender.Equals) and displays text in the status label (status) accordingly.For this I use an If...Then statement for each possibility. There are many possibilities and my code get cluttered. Is there a way to do the same thing with a Select...Case statement. I tried: Select Case sender Case tbOne : status.Text = "blahblahblahblahblahblah" End Selectwhere: tbOne is a textbox, status is a StatusLabelIt gives me an error though, saying "Operator '=' is not defined for types 'Object' and 'System.Windows.Forms.TextBox'."Any ideas on how I can get this to work with a select case statement?
View 13 Replieshow to associate a select case statement with, which point to four Function procedures, to four radio buttons that are used to +, -, *, and / two simple fractions in a fractions calculator. This is a class assignment for which I have already been graded. I used an If...ElseIf statment and it worked perfectly. Now I am trying to utilize the Case Statments with Function Procedures to do the same thing. I do not get graded for this, but I was told to research it an find an answer. My current code is listed below.
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I'm in the middle of making a battleship game, and I'm trying to get picture boxes .visible=True based on the coordinates (that have already been given a nice Try/Catch/Finally error handeling block) of the ships. Example: I have picture boxes in a grid formation that are all red, and my naming convention for them is picR00 for the coordinates (0,0), picR01 for the coordinates (0,1)... et al. Because I'm using a(10,10) for my boolean array, I want the stuff thats false (not marked), those coordinates' red picture box to become visible, and the true have the green ones become visible. Here is what i have so far:
Dim a(10, 10) As Boolean, b(10, 10) As Boolean, c As Integer, x As Integer, y As Integer, ox As Integer, oy As Integer
For c = 1 To 3
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i have a program using a select case to convert letters to special charaters. My question is how can I get the code to read upper and lower case letters without having to put the upper case letters in my select case statement. Example: Part of my code is
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ive got a form containing treeview on the left docked, and two panels one over the other (just as for practice), so i am using treeview to select one from the other the code contains the Case select,
If
Not e.Node
Is
Nothing
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The problem is , both panels are not visible, when i select the first node the firstpanel is visible then i select the second node both panels are not visible, i return to the first node the first panel is visible.
If CheckBox_StartHotkey.Checked = True Then
If Not ComboBox_StartHotkey.Text = Nothing Then
Dim StartHotKey As Boolean
StartHotKey = GetAsyncKeyState(ComboBox_StartHotkey.Text)
If StartHotKey = True Then
StartActions()
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I am trying to input the function key that a user has selected from a ComboBox (containing the function keys F1~F12 as options) into the GetAsyncKeyState(). However, since the ComboBox_StartHotkey.Text is a string, it cannot be converted into Long data type needed for the GetAsyncKeyState() function. I have tried Conversion and Parse Methods but what I try doesn't seem to work. Anyone know how to effectively convert a String (such as F6) into a Long data type for using in the GetAsyncKeyState() function in this case?
I used the tried to use the ItemData property to hold the Key Code representing the Function Key.
When I press F7, nothing happens. I got the Virtual Key Codes from here.
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If GetAsyncKeyState(76) Then
MsgBox("")
ElseIf GetAsyncKeyState(77) Then
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[code]I don't get any error messages, but the DoSomething() line is never executed. I guess this isn't possible.
View 7 RepliesI'm working on a routine that requires a significant amount of nested and daisy-chained logic. Using If-Then-Else, each logic construct would run 8-15 lines of code (quite readable) while using Select Case each construct doubles that (even with significant commentation, it gets less and less readable with each new Case).
I've read many times in this forum how Select Case is leaps and bounds ahead of If-Then-Else in runtime performance, although I can't recall any discussion of the underlying process(es) that make it so. I've also not had any luck finding good, detailed documentation on the nuts and bolts under each logic construct. What I'm working on, if the performance leap is legit, needs the performance more than the readability but if the performance is marginal then the readability is going to get the priority. how and why Select Case is supposed to process so much faster than If-Then-Else. Links to good white paper would be really nice too.
I have a macro that uses "If Then" to choose what macro to run based on the ActiveCell. I would like to use the Select Case method instead. How would I change this code?
Private Sub Workbook_SheetChange(ByVal Sh As Object, ByVal Target As Range)
Application.DisplayAlerts = False
Application.ScreenUpdating = False
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Question is, I basically wrote a Rock Paper Scissors game in VB.NET using If statements and wondered how exactly I would try and work this into a Select Case instead.Professor was pretty awful at teaching things and didn't let us know until today that it had to be Select Case(its due tomorrow
View 2 RepliesConverting an IF THAN ELSE into a select case
View 4 RepliesI am convertng vb.net to c# 2010 as my job, and none of the automatic tools I have can succeed completely. In special example, this case:
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I am mostly java developer before this, so not great with c# and none with vb.net. I do not understand the "oaaaa to" part and this part is not converting. Can you please point me to right place to find the c# version of this?
I have an if-elseif-then setup as below:
Private Sub CommandButton1_Click()
If OptionButton1.Value = True Then
getdate
Unload glpmenu
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I would like to change to Select Case.
i think this is the right place to post this.so i am doing my First Vb project and have run into some problems
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I am using visual basic in VS 2008 and trying to learn how to assign a value to a word in a combo box using case select, this is my first attempt at programing and i just can't work out what to do next. So far i have two combo boxes a label and a button, i want the word, first to = 11, second = 9, third =7, fourth = 5. All it is doing at the moment is adding the list index value and displaying that total in the label. I want it to display for eg: if (first=11) and (second=9) are selected a total of 20 in the label,and so on for what ever combination is selected.
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I have assigned nodes in my treeview keys depending on what they are to do with and now i would like to use a select case to choose the right calculation depending on which node is selected.i have tried selecting the key like this:
Select Case tvwFCOM.Nodes.IndexOfKey(tvwFCOM.SelectedNode.Text)
Case Is = "assi06"
Call MinimumSpeeds()
but option strict on dissalows conversion from string to integer. there are more cases, but i have only shown one here. How can i code so that the key is selected from the selected node?
I had to change the given code from If Then to Select Case, and this is what I came up with. But when I run the program, it does not work and gives me zeroes instead of the correct information.
Public Class MovieInfo
Private wkndBox, screens As Integer
Private title As String
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I just replaced a different segment of code with the select case statement and it works fine. However I don't understand what the dim is for after you do "Select case [variable name here]"
I currently just dimmed a value as nothing. I didn't specify any data type for my variable I'm using for this case statement. But it works.[code]...
Enum age
Over18
Under18
End enum
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'age' is a type and cannot be used as an expression.Is there any way of using enums in "select case"?
I am in my programming class and we had a small program to make that would check to see if an value that was entered is a integer and convert it to a Roman numeral. I know how to properly do it by putting the TryParse into the If...Then statement. What I am trying to do is to not use an If...Then statement and go just by a Case Selection statement. If it is not possible then that is cool with me, I am just trying to think outside the box. Here is what i have done with it:
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When you do say "Case 1" it says it needs to be "Case CBool(1)." Using either "Case CBool(1)" or "Case 1 = 1" provides the same result .However the code shows no errors it doesn't do the conversion, it always displays the label's value as "I"
I have a question regarding a null value which I am not supposed to get in VB. Here is my code.
Public Class SelectDemo
Private Sub lstData_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles lstData.SelectedIndexChanged
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i need to make a statement that checks the remainder of a number divided by 4.[code]can i get this in SELECT CASE ..MOD format please
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