VS 2008 For Loop - Changing Panel Number Each Time?
Dec 22, 2009
For Each Ctrl As Control In Panel20.Controls
If TypeOf Ctrl Is CheckBox Then
CType(Ctrl, CheckBox).Checked = False
ElseIf Ctrl.HasChildren = True Then
Uncheckboxes(Ctrl)
End If
Next
I have a few panels that contain the controls, how can I check them all at once rather than use that code above and just change the panel number each time? It'll get pretty messy if I have to keep pasting all that code and just changing one number.
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Aug 10, 2009
I can code thu an inputbox a new text property of an existing button. However the change only exists while the application is running and lost after the application is shut down. How do I make a perminent change so the new button text shows when the application is run?
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Sep 2, 2009
The code below finds a string from a text file and, if the correct month, - Monthcheck1, adds it as an item to an unsorted ListBox. I want to run through the text file again to find data for the next month. If I repeat this code for MonthCheck2, nothing is added. My question is: What is the convention for looping through the same file a second or third time?
[Code]...
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Mar 26, 2012
I would like to loop through a number of integers to display the higher number, I would not know the higher or the lower number. How could I compare them to pick the higher one.
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Jan 25, 2009
I want to loop through all the controls on a "panel" and bind them to a datatable. I'm finding it hard to detect the "end of the panel" - as I also have group boxes and such on the panel. At first I was using the "parent" control - but that doesn't work with group boxes.
[Code]...
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Dec 9, 2009
Is there an efficient method of changing the opacity of a panel and it's controls?
OR
Is there an efficient method of changing the opacity of a MDI child?
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Nov 23, 2011
I am constructing a program, i am new to Visual Basic, but i have past programming experience. I was wondering if anyone knew how to form a loop that could...lets say calculate the answer when two numbers are added together,and it would repeat this thousands of times, etc. And if there is a way, would it be possible to calculate the time taken to complete this loop.
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Jun 19, 2009
I have parent DGV form and child Detail form. The user enter data in Detail from, for instance, the field AbsenceDays keep number of days like integer. If it possible, how to display in DGV that number in time format HHH:00?
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Dec 28, 2010
I have a panel inside a formview that is supposed to become visible when a checkbox (also inside the formview) is checked. I am able to access the controls, but I'm not sure how to actually make it work. This is my codebehind so far, I know it's not right, but it gives a basic idea of what I'm trying to do.[code]
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Apr 1, 2012
I'm using this code to try and show how strong the password is but the panel is changing to DarkRed no matter what is in the TextBox1.What am I doing wrong?
Wrapped it in PHP tags because I think it makes it easier to read >.>
[Code]...
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Feb 4, 2010
On my .aspx page i want to be able to show and hide certain panels depending on user selections (radiobuttonlists).
For example in my aspx page i have;
<form id="form1" runat="server">
<asp:RadioButtonList ID="RadioButtonList1" runat="server" AutoPostBack="True">
<asp:ListItem>1</asp:ListItem>
[Code].....
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Apr 15, 2011
I just need to get the selectedvalues as well as ID for dropdownlist in a panel
how to loop dropdownlist in a panel in ASP.NET?
For i = 0 To pnl.Controls.Count - 1
Dim ddl As DropDownList = CType(pnl.Controls(i)., DropDownList)
test = test & "[" & ddl.SelectedValue & "]"
Next
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Jan 3, 2012
Question 1: This loop works when the Panel only consists of CheckBoxes. But I would also like to have som TextBoxes in the Panel. When i add a TextBox to the Panel I get the error message:
For Each c In Panel0.Controls(): Unable to cast object of type 'System.Windows.Forms.TextBox' to type 'System.Windows.Forms.CheckBox'.
[Code]...
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Jun 12, 2011
I am trying to create a program that the user enters the number of enrollments for 5 different campuses during two semesters. I just got started and here is what I have so far but when I run the program it is stuck in an infinite loop and will not go to the next function. I am not sure how to end the loop.
Here is what I have so far:
Module Module1
Dim SIZE As Integer = 5
Dim campus() As String = {"Decatur Day", "Decatur Evening", "Huntsville Day", "Huntsville
[CODE]....
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Dec 12, 2009
How can i make it so that label1.text = the number of time timer1 is ticked ?
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Feb 15, 2012
I have a parent panel with child panels that contain images. I am looping through the panels to save the images in the order the panels appear in the parent panel. [code] I can also re-arrange the panels via mouse. The problem is that when they are rearranged, they do not retain their order when saved.. They simply are saved in the order they were added to the parent panel.So my question is, does the for loop use the index set when adding the panel? If so, how can I manipulate the index in runtime while arranging the panels via mouse.
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Nov 2, 2011
In VB if you prompt the user for a number between 1-20, then a word, how do you get a text box to show the word the same number of time as the number selected using loops?... Ex: please select a number: 4 / select a word: cat....the text box should display ::: catcatcatcat ........
I am doing this for a class and my brain has locked up. Prob. just over thinking it though. Thanks in advance for any help!
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May 28, 2011
converting the number of frames (in a video) to a number/time format. For instance, say a video has 110,212 frames at 23.976 fps, it works out to 01:16:36 (hh:mm:ss) with 18 frames remaining. I would like to format the result in a Textbox like the following:
[Code]...
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Jan 31, 2009
I created a listbox using VB.NET. When the user select an item (it is a string format) in the listbox and click on a button, there will be a number beside the string and the number will increment which time the button is clicked. Anyone know how to do it...?Below is the coding I'd done, but I don't know how to do the increment part. Anyone know what coding I need to add?
Dim no As Integer = 0
listBox.Items.Add(listBox.SelectedItem & no)
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Apr 13, 2010
I have a simple Dictionary(of String, Object) that I need to iterate through and change items depending on some conditions.As I can't modify a collection that I'm iterating through, how do I achieve this?For example, the following obviously causes an Invalid Operation Exception:
Dim mOptions As New Dictionary(of String, Object)
mOptions.Add("optA", "A")
mOptions.Add("optB", "B")
mOptions.Add("optC", "C")
[code]....
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Jun 12, 2012
I have a BackgroundWorker and the DoWork event, calls a function called "JustMe", it executes a loop to make visible all the controls on a panel, but does not work vb.net
Private Function JustMe As Boolean For Each ctr As Control In Panel1.Controls ctr.Visible = True Next Return True End Function Private Sub BackgroundWorker1_DoWork(ByVal sender As System.Object, ByVal e As System.ComponentModel.DoWorkEventArgs) Handles BackgroundWorker1.DoWork
JustMe()
End Sub
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Jun 9, 2011
Just getting started in VB.NET. I would like to add X-number of text boxes at run time. And then be able to address them by their index or some sequential numerical value (like an array)
This is what I have so far:
CODE:
When I turn this into a loop to create multiple toolboxes, how do I assign a name to the controls, or will all of them be named "MyTextBox" ? I'll increment their position so thats no problem.
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Feb 13, 2009
I Have a VB.net form with lots of controls to save as config: textbox, radio button, check box... but these a Scatered inside tabs, panels, groups..
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Jul 25, 2010
I have a program where I have to calculate straight-line depreciation (cost * 1/n) n being the number of years to depreciate, and Double-Declining depreciation (cost * 2/n) using user input for year of purchase, cost, and years of depreciation. The output needs to be put into 4 columns in a list box. Year, Value at beginning of year, Amount of depreciation during the year and Total depreciation to the end of the year.
The problem I am having is with my loop. It is not properly calculating. I'm sure I am doing something wrong that is simple, but I can't see it.
Here is my code; the problem areas are bold:
Public Class frmDepreciation
Dim Cost, Life, Year, Depreciation, BegValue, EndValue, Total, Counter As Double
Dim fmtStr As String = "{0,-10}{1,10}{2,17}{3,5}{4,-15}"
Dim fmtStr2 As String = "{0,-10}{1,10}{2,17}{3,15}"
[CODE]....
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Feb 25, 2012
I have a problem..So how can i increase panel number?
For example:
for i=1 to 4
Panel(i).handle
next i
But if i do as in example i have error.
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Jun 7, 2006
I heard that you have to add some code to a random number generator
results(1) = Int((5 - 1 + 1) * Rnd() + 1)
so that if it is used again and again it keeps generating new numbers as apposed to what this piece of code does by itself which is creates the same number every time.what is the code?
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Jun 29, 2010
Ok i got a problem when ever i move a panel and a picturebox at the same time. Ok well them bolth move but the panel has a image in it and when ever i move it with the picturebox it creates a balck square behind the picturebox and the panel and how can i see it, well it on the top like picturebox.location(20,20) well balck quare.location(0,0) same size as picturebox how do i fix this cause it messes up the image. Here is my code:
[Code]...
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Mar 31, 2011
I am attempting to take the decimal places of a given input, round it so there are only two decimal places, then change it to a whole number. So far I have been able to remove the integer part of the number, leaving only the decimal, but the other procedures are eluding me. Here's what I have so far: (VB 2008)
Private Function DecimalNumber(ByVal number As Double) As Double
Dim Input As Double
Dim SubtractNumber As Decimal
[Code]....
That code returns the decimal part of the input just fine, and I thought maybe multiplying it by 10 would work....but obviously you run into problems when there is more than one decimal place.
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Jan 9, 2012
I havn't got any test code for this, as i dont know what way i am going to approach this yet.
at the moment i have a groupbox on a form with 3 radio buttons.
what i would like to happen is when a radio button is selected for it to display a panel with a few controls on it.
i am looking to know what is the best way to code this, i have read a few guides on creating objects at runtime, but none of which i have looked at have any information on adding objects to the likes of a panel.
i am thinking that their are probbably 2 way to attempt this.
my logical thinking tells me i should either
1) Create a class will contain the controls and subs that i need and then try to load the class when it is needed.
2)create a control array then try and work with it that way.
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Jun 6, 2009
I need to center the red panel in the middle of the dark grey panel, when you resize the form the red panel should be in the middle, and the red panel can't be resize, anyone have a code or property to do this?
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