Unable To Get Correct GDI Trackbar Value?
Apr 16, 2011
i am currently devloping a set of fully GDI written controls, just 4 fun and to improve my GDI skills Anyway, my problem is as simple as that i don't get a trackbar to show the correct value when i scroll it..Heres a picture of my form:As you can se, i got a box on each side of the trackbar which is currently showing 1 and 10. To calculate the value i first have to multiply the current location of the trackbutton with 100 and dividy it with the width of the trackline and then dividy it width the maximum value - the minimum value, right? But i just can't get it to work, i am only 15 years old and math is just not my strongest side.. yet..W1 and W2 is the size of the boxes + the space between them and the trackline.
Dim W As Integer = Width
Dim W1 As Integer = S1.Width + 10
Dim W2 As Integer = S2.Width + 10
[code].....
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Feb 15, 2011
I have a form (FRMQUESTIONNAIRE). It contains, a listview table, a panel and picturebox, 2 combobox, 10 questions with 5 radio buttons each question ( A survey),A log number id (I just used Label in here) and 2 buttons ( save and skip).
Problem: When I click one item in listview table, the picture captured realted to the item click in listview table will be shown in panel beside it. However, the problem start to happen when the log ID is not appear accordingly based on user selection on listview table.
What I reckon start of the problem: - Previously The listview table(listview1) in frmquestionnaire was in frmqlist(another form). But to suit user requirement, it has to combined with frmquestionnaire. In frmqlist, I use a label Image. This form contains the similar details in frmquestionanire except there are no 2 combobox, 10 questions with 5 radio buttons each question ( A survey),A log number id (I just used Label in here) and 2 buttons ( save and skip) But it have a button(Proceed to survey). Having said that, when user click an item in listview(Frmqlist), the picture will be shown beside it. User will click button proceed to survey and frmquestionnaire will pop up. Here, It shows the correct Log ID based on user selection in frmqlist.
But now....
I have combine everything in frmquestionnaire. I am facing as the LOG ID is not showing according to the selection. As a result, I can't save the questionnaire answer as well as this log will be used to save in database.
[Code]....
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Dec 16, 2010
I want to get the mime type of local .flv file by using this function from code project [URL]
Public Function GetMIMEType(_
ByVal filepath As String) As String
Dim regPerm As RegistryPermission = _
[Code]....
But it returns mime type for .flv file as x-x509-ca-cert
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Aug 30, 2011
An exert from my config file looks liek this.
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<appSettings>
[Code].....
EDIT: I am able to pass in the string perfectly when using Visual Studio 2005. But when using VS 2003 and a loiwer .net framework it will not let me, unless I hard code it in.
Could something be enabled/disabled on one of these instances of VS? Or could this just be an error with the older versions of .net? I think I am using 1.1??(will have to check) in 2003.
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Jul 8, 2009
Ok here goes my stab in the dark again: I would like to be able to insert a number in to a list box in the correct order, at the moment the number gets put at the end, but the list box starts negative and then gets larger and the values that will be added are within the range already there, My guess would be some sort of sort function?
listbox1.items.add"inorder"(textbox1.text)orlistbox1.items.sort.add(textbox1.text)
i have seen addrange as a function. can you also tell me if i am starting to think like a VB ((novice) programmer?
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May 15, 2010
Is it correct to correct properties values on the fly? for example: (note the .ToLower)
Public Property X() As String
Get
Return _x.ToLower
End Get
[code]....
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Jun 8, 2010
i'm working on a system that upgrades a basic version to a proversion but i have a payment gateway . it generates a code in an SQL DB.now i have a form in VB that has a textbox and a button how can i let VB connect to my SQL DB receive the code and then check if that code is correct and if its correct download silence the pro file. from an url.
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Apr 18, 2009
I have created a basic query generator which allows a user to select the Select, WHERE and criteria attributes using a number of checkboxes.However i have got stuck. In the results form i have the following code
Private Sub DisplayRecord()
RichTextBox1.Text = ds.Tables("newResults").Rows(intCurrentRecord).Item(0)
RichTextBox2.Text = ds.Tables("newResults").Rows(intCurrentRecord).Item(1)
RichTextBox3.Text = ds.Tables("newResults").Rows(intCurrentRecord).Item(2)
[code]....
The program keeps on crashing if the user does not select the corresponding amount of display records from above for the amount of attributes they want for the SELECT part of the query in the intreface in form 1.
How would i go about making something where the number of SELECT attributes selected which are listed in a string create the correct number of textbox fields in the results form (form2)
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Jun 12, 2011
I'm not sure if I already saw a trackbar inside a menu strip, but there is a way to add it? Or even a numeric dropdown?
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May 2, 2009
My app deals with football, and the line of scrimmage. There is an additional line, called the line to gain, used for showing where a first down is earned. I'd like to have a trackbar with two arrow on it... one for the Line of Scrimmage, and the other for the Line to Gain.
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Nov 1, 2011
I need to use a trackbar as a scrollbar, but the problem is that the min value is at the bottom i need it to be 0 at the top and maxvalue at the bottom..
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Mar 6, 2010
I want to add values to trackbar as shown below in figure.If someone scroll the track bar resp value should be shown in that text box.
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Mar 7, 2009
Im working on a Music player. I need only 2 more things in it but i cant figurate 'em out. i use a LISTBOX for the playlist. I want to add a trackbar that follows the music and i can track with it (like every music palyer). The second thing is i want the palyer to start the selected file if i duble-click on it in the playlist. [code]
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Apr 7, 2010
know the millisecond interval, used by the framework trackbar, between calling the ValueChanged event when moving the grip with a mouse?I've implemented my own trackbar and I'd like the behaviour to be consistent with what the user expects.I've had a look in reflector but it's one of those controls where most of the implementation is not viewable.
ETA: Actually, thinking about it, it's not as simple as that. For small changes, the TrackBar is raising the event for every change. However, if you make a large fast change with the grip, it will not raise the event for every step. Just wondering exactly how the framework does this?
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Jan 20, 2011
i have a TrackBar in my form and also an button
i need when the button click than the Trackbar value change to 100, for each second it has to add 1 to value until the value be 100
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Jan 21, 2011
I'm using Microsoft Visual Basic 2010 Express and I've been trying to make an application, a word processor, which has it's own custom tabs, I'm not making a new control, instead using a trackbar and adding richtextboxes to a panel for add tab and removing them for remove tab. and when the user changes the value of the trackbar, the richtextboxes too get changed by using the bringtofront property of the richtextbox with the index that is the same as the trackbar value. basically, as you drag the trackbar, the rtbs should get changed here is the code: the following is for a timer that keeps updating the number of rtbs, etc. [Code]
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Nov 25, 2010
im using a trackbar (First time of using one)i want the trackbar to go up in 1`s to a maximum of 400 at the moment it goes up in 10`s iv looked at the properties of this and i cant seem to figure how to change it from 10 to 1, I looked at the maximum and changed that from 10 to 1 but it just counts the hole trackbar as one which is doing the complete opposite to what i want?
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Sep 20, 2009
[code]when I multiply trkZoom.Value by anything I am getting unwanted results (x * trkZoom.Value). x = 20 varies sizes...x = 100 cannot downsize the image. What am I doing wrong to get this to increase or decrease x5?
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Jun 11, 2011
i need to set the transparency of a bitmap using a trackbar. how can i do this? if i change the value of the trackbar, the image's transparency will change.
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Nov 6, 2010
I have a trackbar in my application where somebody can zoom in and out from a picture.
I can now zoom in with this code under the Value changed event of the Trackbar:
Private Sub TrackBar1_ValueChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles TrackBar1.ValueChanged
''Dim scalefactor As SizeF
[Code]....
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Jul 15, 2009
i would like to allow the user to play around with the size of the trackbar in vb.net. is there an easy way to do this?
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Oct 5, 2010
In Windows Vista/7's windows explorer, the Icon Size selector has got a track bar in the DropDownMenu (see Fig. 1)
Fig. 1: DropDownMenu with TrackBar in Windows Vista
where I can get a similar UserControl or show me how to replicate it in .NET?NOTE: If anyone's wondering where the image came from, I captured it from Windows Vista's Windows Explorer when I clicked on the Views Button.
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Feb 6, 2009
This is the Trackbar in MS Office Picture Manager, I can't make a transparent-background-trackbar like it, when I tried to make the background transparent, it say that "this control doesn't support transparent color", the trackbar also always behind the toolstrip (I chose "Bring to front" from context menu).
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Jul 9, 2009
this line of the code makes the form see-through "User32Wrappers.SetLayeredWindowAttributes(Me.Handle, 0, _
255 * 0.4, User32Wrappers.LWA.Alpha)"
if i adjust 0.4 to 0.6 it will become less see-through.
i would like to know if i can control this variable through a trackbar and how!
Public Class Form1
Private _InitialStyle As Integer
Private Sub Form_Load(ByVal sender As System.Object, _
[Code]....
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Oct 1, 2009
I want to determine whether or not if a trackbar is being Incremented or decremented. (ie. If the value is going up or down)
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Nov 17, 2010
I have a component (GLabel), which can set shadow.I also have 2 trackbars which should change the offset of the labels shadow.I use this code, but it doesn't work, I think I miss something:
Private Sub RadTrackBar1_Scroll(ByVal sender As System.Object, ByVal e As System.Windows.Forms.ScrollEventArgs) Handles RadTrackBar1.Scroll
RadTrackBar1.Value = GLabel1.ShadowOffset = (New Point(GLabel1.ShadowOffset.X, _[code]............
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Jun 18, 2010
MainForm having a few buttons, VolForm is inheriting MainForm. I can see this perfectly in the designer.VolForm itself contains a trackbar. Now have 2 forms. Form1 and Form2 both inherit VolForm. If I change the trackbar from Form1, and then show Form2, the trackbar is not having the same value. Is there any way to keep this trackbar the same in every form that inherits VolForm?
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Sep 27, 2011
How do I know the other window trackbar position lever
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Apr 29, 2010
i am wondering how to make a trackbar with vlc activex plugin i have it part working but i want to make it more accurate meaning how do i make it display the exact seconds then it is right now here is the code
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
With TrackBar1
.Minimum = "0"
[code]....
that is the timer i am using to set the track bar's values and the trackbar1 to take the time and play it at that time?
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Oct 4, 2006
im still working on my DVD Player.. but ive run into some problems..I want to implement a trackbar (any way to make the background transparent btw? Really ruins my design), and im wondering how i can make it track a DVD movie progress? I Havent used a trackbar before, and im having some troubles finding any good documentation on it. So anyone? (using the MSwebDVD component)
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