Track Bar Changing Transparentcy Of Forms?
Mar 24, 2011
On my program I would like a track bar to change the Opacity of certain forms. There is a checked list box so if the user checked the main form and some other forms, boxes and used the track bar to change the Opacity of those forms. If the user uses the track bar and goes right it will increase the Opacity and to the left decreases the Opacity. Then when the user is all done He/She will press the Apply button to apply the changes of the Main Form or Forms.
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Sep 21, 2010
I'm searching for a way to change the font size of selected text in a RichTextBox (rtf) having different font families (e.g. Arial and MS SansSerif) and font styles (underline, bold...) using the FontDialog, but without changing the families and styles. The following code resets all the font attributes, which is not what I want:
[Code]...
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May 9, 2011
I was using the For Each frm as From In Application.OpenForms but it seemed a bit inefficient to loop thru every open form when I already knew what I was looking for. After some googling I found some information about hashtables so I used the following code. This code works as long as another form, say form3, isn't open with the same ID. What I am trying to figure out is, why is the hsh.contains only looking at the key instead of looking at the key/value pair?
Form1
Public hsh as New HashTable
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
[code].....
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Feb 10, 2011
I am trying to create a quiz application in Visual Basic 2008. I need to be able to store a score value when the player gets a correct answer. When the value is stored a new question set appears. Once the score is calculated I want to be able to show this is in a new form so the value needs to be passed from one form to the other. I'm not entirely sure how to do this but I believe it will incorporate a module.
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Jul 28, 2009
just wondering if it is possible to add a method to all forms in my project without having to do it on one form and Inherit all my other forms from that one
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Dec 7, 2010
how I could go about Changing the border of my Forms and the title bar of the forms. I would like to change it globally so that it would take effect on all my forms.
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Jun 8, 2012
I have the below code that can change the data in one XML tag. This is what I want,however, I want it to change all the XML's in a complete directory:
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim MyXML As New XmlDocument()
[code].....
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Sep 17, 2009
I'm quite new at this but I'm trying to change the look of a tab control other than the options provided in the control's properties. In short I want to create a large tab that will fit a picture but I don't know how to change the size of the tab. I also want to make the control look somewhat different than what the control provided with VS.NET looks like.
What I need to know is how to create a custom control that operates the same as tabcontrol but looks different than the traditional control provided with VS. I tried looking up how to create a custom control but all I could find was how to create one programatically and I don't know how it would apply to a tab control. Maybe the only way to do it is programmatically but I would rather play with the control in the designer than having it appear only at runtime.
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Dec 19, 2010
In form frmAddPlayers I declare and create an array of pictureboxes in the Load event using the code:
Dim
pbxPlayerJoined(7) As
PictureBox
[code]....
In the watch window the value of the pictureboxes is System.Windows.Forms.PictureBox. Later in the load event I start a background worker in form sfrmUSBDevice using the code:
sfrmUSBDevice.sReadWriteThread.RunWorkerAsync()
The background worker waits for user input and then calls a subroutine from form frmAddPlayers. The subroutine changes the image in the picturebox to indicate that the user input has taken place. However when the debugger returns from sfrmUSBDevice to frmAddPlayers the watch window shows that all of the pictureboxes have a value of nothing. Then when I try to change the image of the picturebox I get an "Object reference not set to an instance of an object" exception. It seems like when the debugger goes to the sfrmUSBDevice form and comes back to frmAddPlayers the objects on frmAddPlayers have lost their information.
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Oct 9, 2011
I'm trying to change a forms title at runtime where it = my textbox's text. But I can't even get it to change to "test". When I try to google it, it comes up with vb6's
.caption = "test".
When I try to search it on the forum, it gives me a error message saying:
"Error 502 Bad gateway"
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Nov 26, 2009
Currently my program randomly removes words from a set of text and inserts textboxes below the text. The user can then enter his/her answers in the new textboxes. What I would like to do is set the program so the user can have two choices one being Easy and other being Advanced. Then when the user hits either button it brings up everything that is currently on the form. I'd prefer to do this without having to use MDI forms. I've had a hard time using the MDI forms and therefore would like to avoid using them. They way I was thinking this could work is all objects would remain invisible except for the 2 buttons and then when you hit one of them they disappear and everything else appears.
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Feb 17, 2012
I have a basic form which call functions on a numbers of different forms up to (30), Do these functions run in parrallel, or are they run sequentually.Each function as present calls for disk access, if the threads are running in series, this will present a considrable relay, this is not acceptable.
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Jul 25, 2010
am writing a program in vb.net 2008 ... I want the user to be able to change the font on a different form, however any code that I try and write comes up with the error code property is read only.. I hope I have given sufficient detail... oh one more thing I am trying to use fontdialog from the tool box.
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Sep 18, 2008
is it possible to change the size of the MonthCalendar to say double its standard size and still only display a single month?
When I resize using clientsize, width and height the multiple months are displayed?
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Dec 3, 2011
after adding 3 hours from the local for the 3rd timer, how can i get it to look like timer2 once i debug?PrivateSub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Label1.Text = TimeOfDay.UtcNow.ToString("dd/MMM?yyy HH:mm:ss")
Private Sub Timer2_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer2.Tick
Label2.Text = Date.now.tostring("dd/MMM/yyyy HH:mm:ss")
below once i debug, it gives me, 07:07:15 AM i don't want that, i want it to show like the others?PrivateSub Timer3_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer3.Tick
Label6.Text = Now.AddHours(3)
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Apr 6, 2009
Well I'm not sure how to describe it so i uploaded an image that has 2 different control box positions.
[URL]
The one on top is set up as Render Mode=System while the other image is set up as Render Mode= ManagerRenderMode
Both applications were developed in VB using VS2005.
Each one has its MDI container and their MainMenuStrip set up..
What property/reason would be causing this? I just created a test program simulating the same case (MDI container with child forms) and everytime i maximized the control boxes appear in the correct position.
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Aug 25, 2011
I think it was Joshdbr) a long time ago a directory rename program. However, I need help changing this to a file rename program. Our work directory will have a root folder, subfolder and .tif images:
Root
subfolder
22_38839283_939393939.tif
33_23343423_432232434.tif
subfolder
34_34342343_234245252.tif
[Code]...
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May 10, 2010
I have a ContextMenuStrip attached to a TextBox
Dim TelTBMenu As New ContextMenuStrip
With TelTBMenu
.Name = "TelTBMenu"
[Code]....
Whilst the form is loaded this runs fine twice, but then although the Setting boolean is reset the ToolStripItem text remains unchanged unless the form is re-loaded.
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Apr 20, 2010
My program has two lists, one a listbox and the other a listview viewed in details mode.
Both of them change heights (get taller) for no obvious reason. I am having to add a call to a method that resizes them to the end of every method, which is kind of absurd, I think. Also, when the window size is changed, these components change size, which means I have to keep track of that.
Edit: I had also thought of adding a timer to handle this.
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Jan 31, 2009
I recently started out using Visual Basic, and I've run into a problem.I need to be able to change between my two forms when I run my program, however since I'm still rather new at this, I've been unable to figure out a way to do this.
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Aug 7, 2010
I have added two checkbox controls chkBox1 and chkBox2. What I want to do is that when both the chkbox are same meaning checked or unchecked the label should be On and if both are not same label should be Off.
[Code]....
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Oct 18, 2011
I am working with buttons I have A treeview that when you click on a node it changes the text in textboxes and I need it to change the command the button does. So when a user clicks a node it changes text in 3 text boxes and changes the download link for the button. As you can see from the code all works fine but I need to use a button to download stuff and I dont know how the download code is
My.Computer.Network.DownloadFile _
("[URL]", _
cookiepack)
MsgBox("done")
That's what I need the button to do
Private Sub TreeView1_NodeMouseClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.TreeNodeMouseClickEventArgs) Handles TreeView1.NodeMouseClick
Dim filePath As String
filePath = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData)
[Code] .....
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Jan 19, 2010
Is there any way so that i can set the measurement unit of a form from Pixels to Twips?
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Jan 4, 2011
I have inherited from a Windows.Forms.Listbox so I could override the OnPaint and OnDrawItem methods in an effort to highlight specific items and alternate backcolors. I am also skipping some DrawItem events to prevent flickering.Everything is working fine, however when I select items in the listbox, it looks like the font is shrinking or becoming more compressed.Then when I mouse leave, the font goes back to its normal size and appearance but the same items are still selected (which is correct). During debugging the font never changes nor do any of its properties, but it does end up looking different when the item is selected and the mousedown event just happened.
Public Sub New(ByVal relativityHighlightColor As System.Drawing.Color)
_relativityHighlightColor = relativityHighlightColor
Me.SetStyle( _
System.Windows.Forms.ControlStyles.OptimizedDoubleBuffer Or System.Windows.Forms.ControlStyles.ResizeRedraw Or
[code]....
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Sep 17, 2010
I have a program that is reading an Excel (xlsx) file and I am trying to take the data found in one of the cells and split it based upon the '@' symbol inside that cell. Here's an example: value in cell is "XXX @ YYY" I declare 3 strings (strOriginal, strA, strH) strOriginal is the value from the cell ("XXX @ YYY") then my code is supposed to split up the values in the Original string based upon that '@' symbol.So when my code is done, strA should = 'XXX' and strH should = 'YYY'.
Here is my code
strOriginal = dtbExcelData.Rows(0).Item(0).ToString
y = strOriginal.IndexOf("@")
strA = strOriginal.Substring(0, y - 1)
[code]....
For some unknown reason, the y integer (in this case, it is '4') changes to a random number (it has changed to 44, 61, 124) and causes the error "Error with Excel file: Index and length must refer to a location within the string. Parameter name: length" to occur.I understand why the error occurs (my y integer is not staying at 4)...I just don't understand why that y integer is changing numbers when it should remain as the indexof the '@' symbol. I'm looking for any suggestions on how to pull out the data after the space after the '@' symbol (the 'YYY' portion of 'XXX @ YYY'). Also sometimes the 'YYY' is only 'YY' as well.
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Sep 27, 2009
In a windows forms project, I have several combo boxes. The first combo box contains a list of objects. Those objects then have several lists which are used as the datasource's for the successive combo boxes, depending on which item is chosen in the first.
[Code]...
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Oct 25, 2010
I have just realised that ComboBoxes don't have a Change event. I have a combobox filled with a few items, eg. Bakery, Deli, Fruit & Veg, etc. Choose one of these items, all the related items show in the dgv. However, when I blank the text in the Combobox (press Delete key whilst Combobox has the focus), what event fires so I can blank the dgv? The combobox does not contain a Blank item. Even if it does, the Blank item only fires the ComboBox1_SelectedIndexChanged when the user scrolls down to, or clicks on, the blank value.
I want to clear the dgv when the user blanks the combobox without necessarily changing the selection index.
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May 8, 2010
I have a windows form I want to show in two languages. When the user clicks a language button it switches to the other language.
It works fine, when you click it all the labels change to the other language.
Only problem is labels inside a group box do not change.
[Code]...
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Feb 16, 2011
Is there a more efficient/easier way changing the backcolor of a control when it has focus and lost focus? Let's say I've got 10 text boxes. Right now I would have 20 different events...10 for Enter event and 10 for Leave event. Of course, entering would change the back color to "green" and leaving would change it back to "white".
[Code]....
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May 11, 2009
I am after a property that makes a control (textbox, datagrid or other) move according to the forms size. Because some of the controls I got does that, and I really don't want it. I've been looking at them but could not find it
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