I need to create a variable number of Group Boxes, at runtime, inside an existing Layout panel. The name of the Group Box also needs to contain the integer, from the loop, as part of its name. i.e x = 1 to 3 > GroupBox1, GroupBox2, GroupBox3
View 5 RepliesI'm creating 50 picbox in code. they are named Area1_1 to Area 1_50.
They all have different XY position and different size, setup in % of the form width.
Like this:
Code:
Dim Area1_1 As New PictureBox
' Dim 48 other box...
Dim Area1_50 As New PictureBox
[Code]....
But it don't work. Probably because the controls is not added to the form yet...
i have to create for loop that create each time a new GroupBox with new name and location this is not a homework.it is a personal Application to manage my information [code]i have to change the name of the first Dim in the loop each time , but i couldn't.
View 2 RepliesI have some variables that are distinct by numbers, like in1, in2...If I have for loop, how would I access those variables, using the counter, and attaching it to the variable?I believe in JAVA, you could just use in+ct... where ct is the counter to access the variable.also how could you make a new variable in the for loop?Initially I had variables declare outside of the for loop. The problem was how to access those variables using the for loop.
var_nm1 = in1.Text
var_nm2 = in2.Text
var_nm3 = in3.Text
Dim nmList(2) As Integer
[code]....
This is object oriented programming, and I made the textboxes in1, in2, and in3 using the GUI editor. that was so easy.
i have a web browser control, that refreshes pages on a loop after calling a few subs, i need to create a delay in the loop so that the page has a chance to refresh and redisplay before it loops again. i tried the code below, but it seemed to freeze the entire form, elements including, so the web browser didnt refresh before the loop, so how could i create a non form-freezing delay for a loop?
For count = 1 To 20
WebBrowser1.Navigate("URL")
simcheckcheck()
[code].....
I have ran into a situation where it would be a lot faster to create a thread by the users demand. Basically, what I have is some kind of downloading program which grabs URLs from the clipboard into a DataGridView. Now when multiple URL's have been added, it becomes really inefficient since only one URL is being processed at a time.Now what I wanted to do is, create a thread for each URL. The parameter for each thread are the URLs which are stored as strings inside the DataGridView rows.[code]
View 3 RepliesI wanted to draw a chart on a picture box. So I create a form, put a picture box on it, and then in the code of Form_load, I put a handler to the paint event of the picture box. This seems to create an infinite loop, judging from the behavior of the form.
View 19 RepliesI am trying to populate a dictionary with objects created from data in a recordset, but am having difficulty with VB's object referencing. I am very new to VB. Pseudo code of what I am trying to do:
dim dict as Dictionary
rs = getRecordSet
while rs.moveNext
set myObj = new MyClass
myObj.properties = rs.relevantFields
dict.add myObj.getUniqueKey, myObj
wend
However, all 'objects' in the dictionary are actually references to the most recently created (and thus last) object in the dictionary. I know why what I am doing above is not working, but I don't know the correct way to do it so that each element in the dictionary is it's own object.
VS 2008 Creating a Password Application with Do Loop
View 4 RepliesI'm doing this right now - .Add'ing parameters and then at the bottom I'm looping through them and setting the Source column by just removing the "@" character from the parameter name.
[Code]...
I would be grateful with some help with reading a text file into a Richtext box. The code I have at present appends the first line of text as I want it but the rest of the lines of text do not alter. I need a loop to read to the end of file and display in Richtext box. the code i have at present is this:-
[Code]...
Is it possible to create web games in VB 2005? If so, how does the process work?
I'm also looking for a tutorial to assist me in creating a tic-tac-toe game for my web site.
This is confusing the poop out of me.This is a loop at which, on the last iteration,decreases the size of the loop's maximum count, and also decreases the loop counter.
Dim maxValue As Integer = 5
Dim iCount As Integer
For iCount = 1 To maxValue
[code]......
i need assistance in for each loop in vb.net 2005. that what is this for, why we use it, what is its syntax and where we need to use etc etc etc....
View 3 RepliesI have more than ten groupboxes and will increase in future so I am trying to something like this:all groupboxes are visible = false and there is a textbox which shows a random number from range of 0 to number of groupboxes..Now I want make a certain groupbox visible whatever number is textbox for example:textbox1_text change event:textbox1 = 6..so groupbox6 should be visible = true and rest of them should be visible = false..I tried it manually still its not working.
View 4 RepliesI am using the following code to return the long and lat of a property, how can I create a loop to return the same for multiple address's?
[Code]...
I'm making a rock paper scissors program and once I set the current_scene variable to 1, the MainLoop() sub doesn't keep looping, but the sub doesn't exit either. (Form1.vb is the most important file.)
View 9 RepliesI have a Collection, the keys are strings and the values are Collections. In the sub Collections the keys are strings and values are Singles/Floats. How would I loop through all of the data? I need to get the keys and values not just the values. I've tried this but it produces a cast error:
[Code]...
Makes the following statement about the code below:
**"The computer evaluates the loop condition in the Do...Loop statment to determine whether the loop instructions should be processed. In this case, the inputsales <> String.Empty condition compares the contenst of the input sales variable to the String.Empty value. As you know the String.Empty value represents a zero length, or empty, string if the inputsales variable is empty, the loop condition evaluates to True and the computer process the loop instructions. *If on the other hand the inputsales variable is not empty, the loop condition evaluates to false and the computer skips over the loop instructions.
Based on the code I think it is the opposite: ...that while the inputsales value is not empty it should evaluate to true and process the loop and if it is empty it should evaluate to false and skip the loop?
See below.
Option Explicit On
Option Strict On
Imports System.Globalization
[CODE]...
My application uses 12 checkboxes. Dependant on the status (checked or unchecked) different action are required. I can't seem to be able to structure a for next loop to do this.
View 7 RepliesThe following code works fine, however if the user wants to cancel out from the openfiledialog they cant they are stuck in a loop. A loop I created in case they selected the wrong type of data file they could choose again. [Code]. I really need some help seeing where and how to let the user cancel out without the program continuing. I tried some dialog.dispose code but everywhere i seem to put it it generates an error somewhere.
View 4 RepliesPrivate Sub CopySelectedNodes(ByVal nodes As TreeNodeCollection)
For Each node As TreeNode In nodes
If node.Checked Then
'MessageBox.Show(node.FullPath)
Me.CopySelectedNodes(node.Nodes)
[Code] .....
This does not work, I want to loop through results so the textbox1 will be like 151,154,3,151, and I want to remove the last.
how do I set an object array using a loop so I don't have to type each button name?
[code]...
only problem with that is it assigns a string value. I need it to assign an object. any suggestions?
I often use a for/next loop to cycle through a collection to find a particular member of that collection based on some criteria. This works fine in every case except one: when I want to then erase the very member of the collection I just found. For example, if I wanted to give the heave-ho to every obect in a collection class that has a member veriable Color equal to Red:
[Code]...
The problem is once the collection class member is erased it makes to loop invalid because taking out the member reduces the total count of the collection in the middle of the loop. Eventually I get a "Index is out of range" error.This circumstance has bothered me every so often; I bet more experienced programmers have a different type of loop system that works better than this when you want to erase a collection member.
I'm selecting multiple files from a FileOpenDialog box. Now I want to store the names in an array. This is what I'm trying to do:
For i = 1 To fileOpenDialogOpen.FileNames.Length
ReDim Preserve fileList(i)
fileList(i) = fileOpenDialogOpen.FileNames(i).ToString()
[code].....
I'm trying to make a simple game tree.Previously I used nested loops:
[Code]...
I want to create a dll in VB.NET. The functionality of the dll is that it should include all the xml operations. Any application that uses this dll will just pass the node that has to be selected. The dll will accept the node name and search for the node in the xml file and return the details of the node. For example:if the xml file is like
<Node1>
<Node2>
<Node21 Attribute1 = "Value1" Attribute2 = "Value2" />
<Node22 Attribute1 = "Value11" Attribute2 = "Value22" />
[code]....
If the application which uses the dll calls a function named readNode(Node3) which is defined in the dll, then the dll should be able to retrieve all the details of Node3 including subnodes and theire attribute values and return it to the calling application. All the XML operations are to be done in the dll. The calling application will just call the method in the dll by passing the node name and it should be able to get all the node or attribute values.
I've came up with a clever little idea of mine to make an organizer for myself for my classes. I don't really feel like explaining how exactly it works so I've included a picture, you should get the idea.I've added random labels of random classes as a test. When the add button is clicked, combobox1 and textbox1 become visible. In the scenario that "English" is selected from the combobox, whatever is entered into the textbox will go directly into listbox1 since listbox1 is right under English. Here's the code.
1 Dim text As String
2 text = TextBox1.Text
3 ComboBox1.Visible = True
4 TextBox1.Visible = True
[code]....
I am trying to make a collection of controls that I can loop through. So I have this code in my form... Dim WizardFrameCollection As New Control.ControlCollection(Nothing)
I then try to add controls to the collection by I get a error "Object reference not set to an instance of an object." WizardFrameCollection.Add(Me.GroupBox1) I am not sure why I am getting this error. Groupbox1 is a groupbox that is on the form.
Private dt As DataTable
Private ds As DataSet
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim Row1 As DataRow
[code]....
I want to change the font to bold of the current row in the loop and i m also binding the datatable with datagrid as it is in code..