I need to get the x variable from textbox6 into the equation and by pushing button 1, the finish product goes into label2, which is lets say 15min and 45 seconds. I need 15:45 to countdown to 0, and form1 pops up.
View 6 RepliesI make a game using directx. I'd like to keyboard input so I used GetAsyncKeyState function. But this function calls so many times when I am pushing button. I'd like to function that calls once even I am pushing button.
View 1 RepliesPrivate Sub ComboBox2_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox2.SelectedIndexChanged
Try
Using connection As New SqlConnection("server=localhost;database=att;uid=sa;
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this is my code ..i want to display the sum of all no_of_days(column name) in textbox6...if i use button then it is fine..when i use in combobox and try to display when selected index is changed then i get error while running program"Conversion from type 'DBNull' to type 'Double' is not valid."
OK, if any of you use Facebook, you'll know what I mean, you click Share after you type in what you want, and it pushes everything else down, fades in, and slides. I need that to happen, and I need it to happen with labels because I can get the code for a textbox to work, but without the awesome effect.
View 2 RepliesI have a list of colors i.e.: "1323523, 12342, 2354, 356234, 234234"Each of these numbers stand for a color. I would like it so that when there is colordialog.showdialog, this list of colors shows up in the colordialog custom boxes. This is how i am doing it currently, but for some reason the customcolors are not being added. i know for a fact that my array is good because i checked it.
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I need to find a solution or develop one for allowing employees to enter their "hours worked" at the end of the day and then easily and quickly "pushing" that data to Quickbooks Pro 2010.
I'm trying to formulate, in my mind, how to build this type of solution. With my understanding of QuickBooks integration I think it will look like the following:
Quickbooks Software on PC
|
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Remember, the application on the PC will likely be on a consumer or small business network that doesn't even have static IP.
On a separate note, as near as I can tell nothing yet exists that will do what I'm looking for. The apps I have looked at require you to import iif files into your phone (specifically ReportAway). During an initial test of the app, the import failed to import anything but did not produce any error messages. It's unclear to me how the data gets input from the BlackBerry app to QuickBooks but it appears to simply be CSV files.
I'm attempting to populate fields in a processing webpage [URL] and having a small problem.
I can add the email and antenna heights easily but how do I manipulate a file browser (file upload) and option input boxes (Antenna Type) from within my vb app?
It might be the long way around but i'm doing it via searching each of the html elements to find the named fields I'm looking for:
Dim intWork As Integer
For intWork = 0 To WebBrowser1.Document.All.Count - 1
strWork = WebBrowser1.Document.All.Item(intWork).Name
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I have an annoying problem with tree-view control in asp.net VB, it pushes the content page area down when branching out the menu.I have created the proper divs to separate the various sectionsMaster page is very basic:-
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
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I am writing a kiosk type application, in winforms (I know WPF would be better, this is just to be a rough and ready solution until I've learnt WPF), using VB.Net (VS2008).I have a label on my form with the font set to Segoe UI, and at 120pt size (yes it's large, it's designed to be read from a distance on a 42" screen).The problem I have is that the automatic internal padding is pushing my text 60 pixels from the top of the control to the top of the text and 40 pixels from the left of the control to the left of the text - the label1.padding property is all at 0, so this is the default spacing of the control - it seems to be particularly bad with this font (but it's the font I want to use) and if I increase the font size, this issue gets even worse.
I want my text to fit tightly into the boundaries of my control top, bottom and left (I want the right to expand depending on the length of the string in it, though). How can I achieve this (so that I can control all of the paddding myself using the label.padding property) and get rid of this automatic padding?
I want to iterate through an equation and modify a number e.g. Multiply it by 10, where there is one. How do I do this?
View 4 RepliesI wanted to read input equation by user A+B and assign input user value to A and B to ask them to add and give answer. But I just can't get the code to work. I using VS2005 and VB.Net.[code]
View 1 RepliesCan I use a function for more than one equation?
Program Description: Fortuitous Dice is a game that requires two dice be rolled, one at a time. If p and q are the numbers rolled on the first and second die, respectively the value of the roll in the game is determined as follows:
P Q Rule (value of the roll and condition)
Even Odd 2P + Q
Odd Even P + 2Q
Even Even P + Q When P not = Q
P When P = Q
odd Odd P + Q When P not = Q
3Q When P = Q
I have a form with tons of buttons on it. each button has a corisponding entry in a database. What I am trying yo do is change the colors of the buttons depending on the data in the database. I can read the data from the data base fine. here is what I have: the button names are as such: button & the plutnum
while not rs.eof
plotnum = rs("plotnum")
plotcolor = rs("plotcolor")
me.(button & plotnum).backcolor.(plotcolor)
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I have an app that has a lot of buttons. Once a user clicks a button it runs a subroutine. I need to pass the button name to the subroutine and then update that buttons text property to a variable.
View 18 RepliesI have a decent understanding of the logic, the content. I'm working on a puzzle and I'd like to write a short program. I'm looking to fill in the following variables: AB.CDE FG.HIJ (they're part of coordinates, and the puzzle is part of a geocache)
The puzzle asks you to determine which numbers correspond to certain colors, like this:
[code...]
I need to define A-J as >= 0 and <=9. I also need to say that each color is >= 0 and <=9, but that no color can be equal to another color (purple ≠yellow, orange, etc). some number combinations won't work. Purple and yellow can't be 2 and 5 respectively, because that'd produce a negative number. I'm guessing that there will be more than one possible result. So how do I create an equation that calculates this.
I would like to read a user's input equation or expression as a string (such as "y=5*(x+6)" or "cos(3)^2") and have the program evaluate it mathematically. Does .Net have any classes that could do this? Obviously, the compiler can already take a programmer's coded equation and evaluate it. Of course this is a different matter, but is there not a way to harness that same power with runtime user-created equations? Serialization or anything?
The other option (I guess) would be to create my own equation-generator - breaking an equation down into a binary tree of the numerical values and the operations I suppose. Aside from being a nontrivial task, my program needs optimal performance as these equations are in large loops. At the very least, this would add several conditional evaluations to each equation run - dunno if that adds up.
The project is "kWh counter", that is, a simple program that calculates the power usage.The incoming numbers are the Power of the appliance (lightbulb) and the voltage (230/120).The formula is W=P*t that is multiplication of the power and the time it is used.I thought to connect it with a timer and the passing secconds multyply with the power, and, write the ussage on a label.This would be something like a simple digital power counter.Note that the voltage is not necesary.I am from europe where the standards are 230V.
View 7 RepliesI have an equation in the form of a string:
Dim Answer as Integer
Dim AnswerBox as New RichTextBox
'... Settings for AnswerBox
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My assignment is to get the Get Monthly Income (Num1)Get Monthly Home Rent/Mortgage (Num2) Get Other Monthly Payments (alimony, child support, student loans) (Num3) Display Allowable Monthly Car Payment Display Maximum Car Value (interest rate based on credit) (answer) Public Class Form1
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What I need to do is automatically generate a specific PIN number based on the current date. The formula goes like this: MMDD + 1234 = PIN. (ex. Date = 3/26/2012 -> 0326 + 1234 = 1560; With 1560 being the PIN number. I then need the PIN number to display as text, but that's the easy part, I really just need assistance with getting the date information in the proper format for the equation.
View 2 Repliesafter a lot of research on formatting Maths equations, apparently using MS equation edior is the easiest way to do it. But, I have no idea how to use it in VS 2008.
View 2 RepliesI am rotating a picture dependant on the mousemove.
Private Sub PictureBox1_MouseMove(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles PictureBox1.MouseMove
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To simplify the part I am having problems with: rotationX = CurrentPositionX + ((InitialPositionX - MousePositonX) / SlowDownDivisor)
As an example, this occurs in both X and Y; If I click and drag in the X + Direction and release the mouse button it does exactly what I want, rotation in the positive direction. If I click and drag in the X + Direction and then drag in the X - direction, the rotation continues to be positive, it doesn't reverse. If I release the button and then click again and move in the X - direction the rotation is negative as it should, but it will continue to rotate in the negitive direction until the button is release.
I'm trying to call make visible an object, i can do this:
Button1.Visible = True
but, i was wondering if there is a way that i can call it like this. Lets say i have a variable 'OBJNAME' wich value is "Button1". What i want to do is to make visible the button like this:
OBJNAME.Visible = True
I want to do this because i have like 100 objects to show in the form and i dont want to code for every one of them.
I am working on an alarm system software, which is SMS-based. I am using a GSM modem to receive the SMS when a client's premise security devices are triggered. The types of SMS text received will be like for e.g. "fire alert"(when devices triggers), "fire clear"(when devices are 'reset').
My program can detect real and false alarm, it works this way, i will input a premise site-map on a picture box at the main GUI, i can then create buttons at run-time and drag them to the respective position on the map. The buttons created have their text set as the client's block number referred to the database. So basically, a button represent a client. When a device in the client's premise is triggered, a SMS will be sent and my GSM modem will receive it, process the SMS and the button representing the client will start 'flashing' showing that the client's premise is under danger. Then when the button is clicked, which acts as an acknowledgement, will display the client's information on labels and turning that specific button to red color. Finally, when the device is 'resetted' in the client's premise, it will send another SMS to my GSM modem, after processing, the button will be back to normal.
But my program has detect false alarms also, the first part is similar to mentioned above, client's premise security device triggers, SMS sent, SMS received by GSM modem, process SMS, button 'flashing'. Secondly, if the alarm is false, it will be automatically 'resetted' or the client may 'reset' it, then a SMS will be sent to my modem, turning the button to 'flashing' green in color. when 'acknowledged' will display the client's info and the button will become normal.
The problem here i am facing is during the processing of the SMS, because the real and false alarms both will receive the 'clear' SMS when during some stages, but the functions are different and of course the 'checking' for both functions will be different too. The problem occurs at the checking process whereby the 'btn' variable is not detected.
'Try
'AT commands to receive SMS
serialPort.Write("AT+CMGL=""REC UNREAD""" & vbCrLf) 'set command message format to text mode(1)
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this is the linkbutton
<asp:LinkButton runat="server" ID="linkId" OnClick="doSomething(10)">ID
</asp:LinkButton>
and this is my sub
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commercial dll to be used in vb.net to calculate equations of any complexity? pass an equation as a string form and to get the final result.
View 1 RepliesIn our school theres a programming class and the teachers gone for the week and the sub is starting to get very frustrated, so I offered to help in any way i can. I have never programmed Visual Basic but I have programmed Ms-Dos, Javascript, HTML, *.vbs, *.ahk, *.gml, and a variety of other languages.
The class is going to build a program that calculate how many rabbits are born in a family. So when they click the button it shows in a text box the actual equation and then the answer after the equal sign that where i assume concatenation comes in.Here's the code I've thrown together for when the buttons pressed:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim RabitAmount As Integer
Dim ShowEquation As String
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I got the equation to answer it self and show in the text box but it won't show the equation?
I want to display an equation prior to solving it. Obviously in MS word etc I can use equation editor to write an equation, but I'm writing my own program.
Is there an easy way to display an equation. Obviously I could use text to write eg as text "a=b^2-3(c-d)/5" and everyone here would have little problem interpretting what I want but I want this to be accessible to 12 year old children.
Alternatively I could try and manipulate lots of text boxes one on top of the other to try and explain what I'm doing
The third alternative I thought of was to write in equation editor export the graphic and then import a graphic.
I'm sure I must be trying to reinvent the wheel - which I believe is the one thing OE programming is supposed to avoid.
First off the listbox needs to show the equations for the number entered between 0 and 12 example:
1+1=2
1+2=3
1+3=4
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I put this mathematical formula in VB 2008 Express Form and I have the result show in TextBox and every thing is good so far and my question is if I have a table of numbers for example if the answer in the TextBox is 0.00098 and my table show :
0.0001 to 0.00100 = 7
0.00101 to 0.002 = 8
0.00201 to 0.003 = 9
Etc
I need the number 7 to be displayed in label 1 so how can I do that?