Way To Control Graph Intervals
Dec 10, 2010
I'm using the chart control that's built in to Visual Basic 2010.NET Service Pack 4.
I am creating a basic date time graph with time on the axis and, at the minute, random points between -20 and positive 20 on the y axis. At the minute I can set everything up perfectly. The only problem is that the label on the x axis is not a time, it's a number. To be precise, it's the XLabelInterval value. This value is a double, so the label on the x axis is also a double not a time. But that's only interval I am setting. I think, by default, because I am not setting any labels, it is just using that value as the label as well.[code]...
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Jan 6, 2010
I have two webbrowser controls in my application, and I need them to refresh every so often, for example, every 5 minutes. How do I do that?
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Aug 7, 2009
How can I duplicate the Outlook Calendar control that allwos you to see appointments on 15 minute intervals? It scrolls up and down and has mixed ssize fonts on it. I could duplicate the fonts but how do I get it to scroll? There are only a few controls that will scroll or allow you to scroll them.I am trying to create a scrolling schedule with a preselected time increment. (15 minutes intervals)
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Apr 4, 2012
I am wondering how one would go about using the graph control to display a bar graph that shows trends from my database.They are rather easy trends. I am building an industrial issue tracker and I would like for it to show how many issues were submitted each month for the last 6 months and also how many issues in the last month were of certain types that are categorized in my database.
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Mar 15, 2012
I've got a bar chart on my form which when I click a button, it populates with some data showing the clients net position, which is their assets vs their liabilities. This is shown on a year-by-year basis, so the graph will go up or down accordingly. If the graph goes into negative, or is negative at any stage, I would like it to turn red, and leave the positive values green. I have no idea how to do this, or even where to start looking into the properties. I'm still new to using the charts. How can I make the x-axis labels in increments of 5 from 0, instead of increments of 5 from -1?
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Feb 25, 2011
I have an VB.net application in which I have imported the MSchart control 6.0. It draws all the bars in the same colour. I want to have each bar in different colour. I want bars of the same series to be so. There is only one series of data.
[Code]...
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Nov 14, 2011
I am trying to make a line chart and from what I've read using the chart control is the best way to go about it, but I have no idea how to do that.
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Nov 21, 2010
This control takes in an array and plots a bar chart type 'count' along the Y axis for a corresponding X location. A user has requested to be able to mouse hover over any location on the graph and have it display the X and Y coordinates.
Option Strict On
Option Explicit On
Imports System.Windows.Forms
[Code]....
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Feb 23, 2011
How can i use zed graph web to graph a dataset or datatable, the only examples i have found use test data.
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Aug 4, 2011
How add a timer with different intervals like ( 1000,5000,10000) ? , I need all intervals in the same timer.
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Jun 17, 2009
What would I do to change my intervals into minutes?
to have my timer set to 10 minutes?
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Sep 15, 2011
look at the comments at the beginning of each class. Note, the period is rather small (100ms), and the process being triggered could occasionally take more than 100ms (in which case, the next thread trigger should be delayed ... two threads shoud never overlap). Also, the class will never be instantiated more than once.
[Code]....
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Jun 7, 2009
I decided to whip up a simple stopwatch-esque timer for some needs of mine. Well after writing a very basic code for the timer to show seconds and milliseconds I see that the intervals are wrong[code]...
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May 4, 2010
I have a piece of hardware that is controlled via USB.There are 8 LEDs on the output byte. One LED per bit.I like to toggle the outputs based on selection of checkboxes and given frequency entered in TextBox.I inserted 8 checkboxes to allow me to select the desired LEDs to be on.I select the checkboxes to select the required LEDs.The checkbox gives me the byte value. XORing the byte value with 255I can see them toggling very fast. I have a while loop to blink forever until I click on stop button.The stop makes the seq=false and this should stop the blinking but it keeps going.How can I insert desired delay of flashing frequency in my output routine?How can I stop on demand to change pattern without exiting the program.
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May 29, 2009
What are the timer intervals for VB2008?It wont let me go over 100 so I'm not sure if 1= 1 second, or what.
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Jul 2, 2009
I have to draw a bar graph in my vb.net program. I used AxMSChart to create a graph. Everything has gone fine but when i published this and run on Vista PC, all form was good except my form includes MSChart. It says class not registered.So i have to draw a graph except MSChart tool.
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Dec 28, 2009
I am busy with a routine that will draw a bar chart.The X-axis is from 0 -100, no problem. The problem is the Y-axis.it will range from 0 to whatever the highest y-value will be.
My problem is that the y-axis should still be divided into 10 intervals, and the lenght of my y-axis should be the same in my picture box.I am using an array to fill the values, chartdata (0-9). It gets 10 values from the program. the values are 0 -10, 11 -20,21-30....91-100 . here is the code. It is working, but my Y-axis is messed up. Printing the labels of the y-axis is a problem.
Private Sub PictureBox1_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles PictureBox1.Paint
Dim chartData() As Single = {mark0, mark10, mark20, mark30, mark40, mark50, mark60, mark70, mark80, mark90}[code]......\vb
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Sep 7, 2009
This is my code atm and it wont change the interval at all[code]...
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Jul 2, 2011
I have a windows forms project in VS2010 with a simple line chart.The data is dynamic and always ranging between 1.4000 and 1.5000.I want the Y axis's gridlines/labels to always be displayed on every #.##20 data point, as in: [code] So I tried the Interval property for the axis gridlines/ labels, setting it to 0.002, and the result was that the gridlines/labels were displayed every 0.0020 points, like for example this: [code]
but not on 0.0020 points too as shown previously.
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Dec 4, 2009
I want to upload data at regular intervals, for that I used windows service with timer. Now problem is when I start my service. Its showing System.IO.IOException error.
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Mar 31, 2011
I have created a windows service and I have two different timer variables in there. 1st one fires off every 5 seconds and then does whats it is required to do. The second one fires every 30 seconds.
I make sure that when the function are getting executed I disable both the timers and enable once the function is complete.My problem is my second longer (30 second ) timer never fires only the first one is firing. I had created this service 3 months ago and it was working fine till now. But now I do not see the timers work properly in a simple windows app i created to test their workings.
[Code]...
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Jul 11, 2010
i have a need for my vb.net app to perform methods at regular intervals. it needs to check sql tables and react to data found, send email and sms messages. i've tried using a loop but this only allows me to perform 1 check ie checking sql tables. the app needs to execute a method every x minutes. i tried using system threading but i got errors.
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Sep 29, 2009
I want to generate random numbers at regular time intervals. I am putting the random generation in a loop which works when a button is clicked. But since the Timer itself is a control, I don't know how to do it. I tried putting the timer in a module so I can access it inside the form.
But the following error occurs:
"Error 1 Handles clause requires a WithEvents variable defined in the containing type or one of its base types".
When I doubleclick the timer icon the code appears as follows.
Public Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
End Sub
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Dec 6, 2010
I need to fill a combobox with times at half an hour intervals:
12:00 am
12:30 am
1:00 am
1:30 am
all the way to 11:30 pm.
I could do it all manually, for next loop, cur hour, cur min, add 30 min, when over 60 add hour and so on....
but there has to be an easy way to do this?
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Apr 28, 2009
I am new to Visual Basics and I am using Visual Basic 2008 express. I have been using video tutorial on line to learn VB and they are great in explaining what is happening the code vs. just looking at code. I think from what little I can find I would be using StreamWriter WriteLine and StreamReader readLine .I am using a couple of forms. I am looking for simple basic code to use a form as a way of modifying timer intervals and store the values in a single text file on separate lines.
Description:
Form1: will contain the main code that will run. It will contain some timers. I want the timers to look in a text file for their intervals. Each timer would be on a different line.
Example:
Timer1 interval would be located on line 3
Timer2 interval would be located on line 6
Timer3 interval would be located on line 20
Form2: will contain 3 textboxes. This is where when I load form2 I will also read the same values from the text file to preload the text boxes. I will now be able to change the timer intervals as needed and press a button to update the text file. The update button will also reload the new timer settings on Form1. This is very similar to how a CNC Machine works with Parameter settings. This can be useful for storing many different settings for a form that a user can modify and be stored and reloaded next time the program runs.
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Sep 5, 2009
This is How to make a website refresher with intervals/speeds
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Jan 7, 2010
How can I execute a piece of code at set intervals without using functions or timers?
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Mar 6, 2010
I'm trying to make a form that will read my wordlist. txt (one word or phrase per line) then using a timer, insert one word randomly selected from the list, and display it in textbox1 where it will remain until another timer changes the word. The word in the textbox will display for a random time 1min to 7 min, then the textbox displays another word randomly selected from the word list.
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Dec 2, 2010
I am trying to build a coordinates system but am having trouble with how to.. What I have sofar is a textbox that allows the user to enter a length. This length is user defined but never smaller then 610 in length since this is the minimum unit size we use to build timber frames. The overall length of a timber frame is infinite (well not really, but it is for what I want) the timber frame has beams every 610mm set apart from each other (this is a legal requirement) so I want my vb.net to set coordinates for each beam at intervals of 610 then write that coordinates system to a text based *.SCR file
[Code]...
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Aug 2, 2009
If I want to trigger an event every hour, I would have to set the timer interval to 3600000. That seems a bit crazy. Is there a better way to trigger events in these "longer than X second" type intervals?
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