im new to trackbars and i can get the trackbar to display a lower tick frequency but the slider still moves in increments of 1/10 ticks per movement. how do i get it to skip to the next available marked tick?
View 4 RepliesIam creating a simple program for a friend that plays different internet radios.. And he wants a volume slider.. So i've used the TrackBar control i VB.net and it works as it should.. I can control the volume with it.. However he wants this application to be touch friendly and as far as i can see its not possible to change the size of the actual slider in any way..
View 1 Repliescreate a form with a TrackBar control so that when you Scroll the TrackBar it generates a frequency based on the value of the TrackBar. Beep() isn't really what I'm after. I was wanting it to smoothly transition through the frequencies. Basically, I want to create something that sounds something like a Theremin.
I've been looking online, and I can't seem to find anything. I don't even know how this would be accomplished. Is there a simple command to say "play this frequency until I tell you otherwise", or do I need to generate a .wav on the fly and have the system play that?
Is it possible to have smaller intervall than 1 in a timer?
View 7 RepliesI have a winforms app using a trackbar. The BackColor property is available for change, but doing so makes the color of each "tick" almost invisible. I don't see an explicit property to modify the color of the "tick". Is there something I am missing or a way to change the color of the tick?
View 1 RepliesSuppose I have meeting 31/1/2011 9.30 and when current time becomes 31/1/2011 9.30 it displays a message: "You have a meeting". How can I do this with VB.NET?
View 1 RepliesI have to do a questionaire that gives three questions with multiple choice answers. When the user clicks a radio button it displays a tick or cross depending whether the answer is correct or incorrect. I also want to display, on a label, the number of correct answers with the number of attempts. i.e 1 out of 3. I have listed the code I have for the questions and radio buttons and I know I have to declare form variables but I do not know how to get it to recognise the radio button as a number to add to the total.
Private Sub radBevan_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles radBevan.CheckedChanged
If radBevan.Checked = True Then lblScore.Text = "Incorrect. The answer is Beveridge."
If radBevan.Checked = True Then picTick1.Hide()
If radBevan.Checked = True Then picCross1.Show()
End Sub
[code]...
I have a quick question regarding the serial port and timer tick event. Basically i have a micro processor connected to the PC via the serial port. With a baurd rate of 38400 set.When the PC sends the micro ":K + VBCRLF" the micro response with a string of information (ASCII encoded) and delimited with a "," and at the end of the transmission a cartridge return line feed is added.Example of sent string:
"12,1134,123,545,76,6868,34,232,1,2,3,6,7,8" These numbers are then split using the VB mystring.split(",") function into an array of strings, then the numbers are converted using ctype. After which my UI is then updated.I have Witten the code in a tick timer event using a timer count of 300ms. Although the program runs and the UI is updated i end it with lots of exception errors. I think allot of this is down to the serial port either timing out or not reading complete string.Or possibly the timer has not executed all the code before another tick event happens Even after adding a few try catch statements i am still having problems. Can anybody suggest a better way of doing it?I was thinking of using a do while loop and at the end a sleep function instead of the timer tick event.I need the speed as i am trying to read and display live data.
[code]...
Where can I find the slider control that i used in vb6... is there one for VB2010?
View 6 RepliesI am upgrading from VB6 and started working with VB.Net (VS2005). One problem I have was controls avilable in VB.Net. I can use a slider bar in VB6, but couldn't find any quivalent in VB.net(.Net Framework Components)!! I don't know why I can choose one in COM components, but these requires project generated DLL's to run. I want to distribute just the executable.My questions are:
-Is there any slider bar in VB.Net Framework Components?
-If there is none, Can I use COM component and bundle everything into one Executable? Also is it possible a list of controls in .Net as I find in vb6: url....
I cant seem to find one, but there are referances to one on the net. I want to use a slider control to alter the brightness of a light bulb.
View 5 RepliesI would like to create a vertical slider similar to ones you would find designed in AJAX but I need to do it in a VB.NET Windows Form. I'm hoping that someone has seen this done.
View 5 Repliesin my company intranet, there is a webpage with a js slider. While moving the slider, some textboxes are updated dinamically.
I am trying to change the slider value and submit the form programmatically, but the value sent to the sevrer is always the original "step 1".
If I change the value using the usual
document.getElementById("slider").setAttribute("value","2")
the value changes correctly but the textboxes don't change their values and the info sent to the server isn't the value just changed because is made in js to get the current displayed value.
a way to update the value needed to the server, and make all textboxes update dinamycally?
I'm binding the value of a Slider to an integer property that represents the volume on a networked device. This network request takes a little time (usually <100 ms), and somehow causes the Slider to feel choppy.Here's my oversimplified code to clarify:
Private _playbackVolume As Integer
Private _deviceForDemonstrationPurposes As New Device
Public Property PlaybackVolume As Integer
[code]....
Binding to the PlaybackVolume property will cause the setter to fire while still dragging the thumb. Because of the network latency issue, the slider is locked for however many miliseconds it takes for the request to complete.
At work we have this really old excel spreadsheet with movable points in it.This feature no longer works in '07 so I have decided to try and make a VB form to replicate it's functionality.I have the concept down of what I'm gonna do, I'm using sliders for the movable points and I'm using a data grid view for all of the numbers they are just going to type in, and then I have a button that saves all of the data to the database that it links with.I've figured out how to get everything working except the button that saves the data. So there are 4 separate databases attached to sliders and another one that is part of the data grid view. What am I going to have to put into that button under the click event in order to make it save the values in all of these databases?
View 2 RepliesI am trying to make a form expand from one size to another using a slider animation.
The problem is when I run it the form resizes but without the animation. I'm not sure how to use the animation when resizing the form. It works if the form is a set size and then I run the animation.
The form is borderless and starts out with a width of 11 and I want the final width to be 285.
The resize and animation are triggered by clicking on the form.
Here is the code.
Private Sub Form3_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Click
Me.Width = mintformmaxwidth
[Code]....
i doing asp.net and using vb.net.I have a datalist control which inside it show a product img, description, price the problem is that i was to show the product another img, so i want to have a small picture below the img, so when click on the picture the img change to another.
i want something similar to this link : [URL]..this link they use flash to come out with the effect that i want, but they are not in datalist, so think that i may need to use ajax but which one?anyone have any sample or example ? if i was to use the jquery easy slider numeric navigation how am i going to implement onto the datalist?
I have a set of x, eg 288, data values. The user wants to fit a regression to a subset of this data, eg (2 - 200), then she wants to analyse within a subset of this fitted range, eg at 20 and 100. So, on my form are four Hor. Slider Bars, to set the lower and upper bounds to the fitting and the analysis. The two that set the lower bounds work fine. The two that set the upper bounds are getting corrupted somehow outside of my code and I do not know how to solve this problem. What happens is that when I click on the right hand arrow on the slider bar, the program runs through my function with the correct values whilst the arrow is down, goes out of my code and then immediately comes back into my code, but with the wrong value set into the Hor. Slider Bar fields that I am working with, eg the .Value field. The new value is always 9 below the maximum that it can be, but I can see no connection to this number.
View 1 RepliesI'm trying to make a slider, or a custom scroll bar, whatever you want to call it, in VB 2010. But I want it to act as an usual scroll bar. I simply can't make it stay inside my form, it just moves around. I have a photo of my code and my designer down the thread. What should I add? I tried to make it stay inside Panel1.
View 3 RepliesI have been trying to find a code that would allow me to use a slider to adjust the users actual computer volume. Is this even possible?
View 1 RepliesIs it possible to build a Frequency Generator in VB.Net? I would like to be able to select a frequency from a Combobox or a drop down listbox. And be able to save that frequency as a file as well as play the frequency.
View 3 RepliesA simple class that plays a tone of varying ampliture, frequency and duration through the PC's speakers:
Imports System.IO
Imports System.Media
Public Class Form1
Private Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Button1.Click
Beep.Beep(1000, 1000, 1000)
[Code]...
This class uses SoundPlayer.PlaySync which has a 4 MB stream length limit, so the longest duration is 24000 milliseconds. You can try SoundPlayer.Play for longer durations, but allow plenty of time for it to complete.
In VS2010 I have VB.NET codebehind aspx pages and I'm using Ajax multihandleslider extensions to filter search results on numerical values.
Fistly, the multihandle sliders don't display in the designer... I have to remove the slider targets tag:
In order to make it display in the designer... this isn't so much a big issue but an annoyance.
I am displaying items in a given category. So I get the max and min prices for all items in that category and assign the sliderextension max/min values appropriately.
This works fine until... I change the item category and go get a new max/min value for the slider control. I set the max/min values, then I set the target textbox values each to the corresponding max/min values.
The slider handles don't repaint (or init?) properly Like say for example my initial min/max is 1/100 if I do a full postback and change the max value to 1000 then the slider bar (correctly) stays the same size but the handle appears WAYYYY to the right off the page and I have to scroll to it. When I click it, it shoots back onto the slider bar.
I'm trying to find a script to create a slider button.
View 2 RepliesI have got a very simple video player wrote using Visual Basic 2010. I have embedded the windows media player into the app without the controls. Right now it has simple play, pause and open buttons that work with wmp . how to make a slider that corresponds to the normal sliders in video Players?
View 3 RepliesI tried to implement Trackbar1 with Windows Media Player. The volume stays at the same sound level no matter how much I move the slider. Here is the code.
[Code]...
I am looking to be able to do life frequency detection in VB.net. I must say I don't really know where to begin here. I have looked into BASS.net, but that seems to only work with pre-recorded audio. I need to be able to detect the frequency of audio coming in over the line in or mic input in near real-time.
View 2 RepliesI have an application in which I am analyzing a system where there are a large number of interactions. And I need to make certain choices based on the frequency of the occurrences of unique items in the system. For example, if you had this list of letters:A, B, F, G, A, T, S, B, S, B, S, Q, Z, B, Q, S..[code]The above is a tiny example, but I've attached an image which is a simple line graph of a larger system..In this graph the numbers along the bottom aren't really important. They are just marking the number of unique frequencies. And the Y-axis marks the value of that frequency. What I'm looking for is a mathematical/programmatic way to find the point where that line begins to break upwards. My searches haven't yielded what I'm looking for as I'm not really sure what the proper terminology is, or the name of the concept.Right now, we have to manually choose that point based on a human looking at the numbers and saying "here". But I want to, at the very least, already have a "recommended" value chosen, and at the most, be able to remove the human component completely.
For clarification, my current algorithm is producing a list of number pairs occurrence to occurrence frequency. My use of the word "frequency" in no way relates to electromagnetic signals, but rather to how often an occurrence occurs. But I thought that saying "occurrence occurrences" would be more confusing! In this system, the general trend is that a few entities will show up in a large number of interactions, more entities will show up in a medium number of interactions, but the greatest number of entities will show up in just a few, or even no, interactions. It would be tough to imagine a scenario where it was different than that... worst case would probably be a plateau. But there could definitely be a dip after a jump at any point from the beginning to the end. The illustration above just doesn't show that. We cannot assume that there will be a point where it will begin to rise with no drops afterwards.Ultimately what I'm trying to determine is the importance of an entity based on how often it occurs in the system. I need to be able to flag certain items as "important", but all items can't be important. And the method/algorithm I'm looking for would help to identify at what point in that list do I stop considering items important. If you look at the list, you can see where the lower occurrences start becoming more frequent. I don't think that I can sort on the right column because the left column is really the key data. Greater occurrences = more importance.
Edit 9-7-2011: I am still hoping for an answer for this question. There's been a couple of good they have ultimately not sent me in the direction that helped me get the answer.I have an application in which I am analyzing a system where there are a large number of interactions. And I need to make certain choices based on the frequency of the occurrences of unique items in the system. For example, if you had this list of letters:
Here is a list showing how often each letter occurs (occurrences):
A - 2
B - 4
[code].....
I have made a music player, using the windows media player dll but now I want to make a graphic frequency equaliser
View 6 Replies