I have a series of labels to modify through a loop. here's an example of the code i need to modify
lbl1.forecolor = color.black
lbl2.forecolor = ...
I need to iterate the lbl number each time through the loop as the color value will change from label to label.Clueless on how to do so with a loop vs the "long" way of doing code for each separate label. I have 169 to modify each time I change input so I'd rather not unless I have to
I am looping through a collection of items. Within that loop I need to set variables but they need to be a variable. I tried using lists but for some reason they don't get set properly. Heres what I have so far...
[Code]...
I would like loop through control names at run time. Is it possible to do something like the following:
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how do I DIM a variable's name using previously declared string varialbes? I have been using PERL for processing data stored in text files but I now have a business need to use VB2008. I would like to do something like this:
dim name1 as string = "ABCD"
dim name2 as string = "123"
'here is the part that I don't know how to do - create a 3rd variable name concatenated from name1 and name2:
dim string.concat({name1,name2}), or maybe use a counter in a line like 'dim namex as string' with x being a counter value.
Essentially I want to dim variables using text strings extracted from a file. In PERL I have declared literals and arrays, such as 'my @$name1', which creates an array named with the contents of $name1. In VB2008 I am not sure how to make this work with the DIM statement.
I am trying to reduce the amount of code I have and make it more maintainable and flexible. (I.E Do it the right way). I have a bunch of (48) Form controls (text boxes) and when I click next on that form I save all their text values to some 48 global string variables. The names of these variables are the same as the Text Boxes but with "_saved" appended to them.
For any given operation instead of having a separate line for each control it's nice to just use a loop. I can easily write some code to operate on each Control (set visibility, enabled etc) by using Me.Controls and a For Each Loop. I can even make collections of fractional groups of the 48 controls. For example, If cntrl.name.startswith("sometext") collection.add or perform some other operation only on that subgroup etc.
I'd like to do something similar with my Saved Public String Variables. For example I would like to do the following loop somehow but don't know how to group Variables together and keep their name in a way where I can define that array or collection on 1 line or just a couple lines.
' But this next line only groups the values
Group_of_string_Variables = {Var1, Var2, Var3, Var4}
For Each Name_of_String_Variable In Group_of_string_variables
[Code].....
But I can not access the name of a variable or find a way to easily group in key/value 48 different ones without needing much more than 50 lines of code to make either a 2-dim array, a collection, or a hash.
I'm sure someone will tell me I should be doing it a completely different way. That would be ok as long as I don't have to change too much of my other code. I thought of making an object of some kind instead of a variable so I could access 2 object properties- name and value then I could group those objects in a collection as I have done before. But that seems like it would be many more lines of code and I'm not sure it would work.
We have this current VBA program to help us with AutoCAD via the use of a template excel sheet.The setup we have created works well; however occasionally we have two drawings per folder, which often results in, two templates excel sheets of the same name, one overwriting the other. how I can set the active drawing name in a variable that our program uses to check for, then if not present that it creates a copy of out template and then saves it as the active drawings file name which was set as the variable
This would allow our program to locate the associated excel sheet by name then save it by the unique drawing name and prevent existing excel files being overwritten if in the same folder.
;===CODE STARTS HERE===
Option Explicit
Private Objexcel As Excel.Application
Private ObjWorkbook As Workbook
[code]....
This is my first post here at Xtreme VB Talk. I just started programming 2 semesters ago. I am currently working on a program but I am having a little trouble with the length. I am trying to take the integer entered in a text box and using it inside the name of another object.
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project i'm working on for school. Need to make a grade calculator thing but I'm trying to make my code more efficient.
This is what I have at the moment:
txtID.Text = ListBox1.SelectedIndex
txtFname.Text = namesarr(ListBox1.SelectedIndex, 0)
[code].....
im trying to create smarter more efficient code in my project by having all lables change to their desired states by use of a for loop. currently my labels are all something like lblB1. can i do anthing like the following?
[Code]...
In form 1 a user enters there name and if they enter =>3 letters then form 2 shows up. I want it so when form2 shows up, I want the name that was entered to display in a label in this form.
lblname.label = username
I have 2 forms (e.g Form1, Form2) which have multiple labels drawn on them (e.g Form1 has Label2,Label3 and Form2 has Label5,Label8).How can I fetch into an excel (or notepad etc) sheet the total number of labels and their names that I have in my forms?
View 8 RepliesI am looking for a way to make my code shorter, how can I implement a for loop to do this:
Public Class frmWhatevs
Dim arrOne(8) As Label
Dim ArrTwo(8) As TextBox
Private Sub frmb_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
SetaArray()
SetbArray()
End Sub
[Code] .....
How can I sort label names on buttons within a form. Automatically sort the names and put into the correct place within the form. A-Z order sort can be left to right. Want some sensibility to the form not all mixed up.
View 4 RepliesI would like to use checkboxes to determine the names of multiple labels, but seems like a lot of code.
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I have a piece of code that returns no error but doesn't do what I expected. I want it to "select" a label then assign it a new .text value from a DB
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I am trying to add 2 variables and the result to appear in a label.The case is that there is a platinum version of an album which costs more. The extra cost depends on the album so it varies.If the user wants to purchase an ordinary and a platinum album then I must add the two variables and the combined price to appear in a label. The normal and platinum prices appear fine when the other is zero but when I increase the quantity on both the label remains blank.I have an if statement like this:
If PriceNormal >0 and PricePlatinum = 0 Then
lblPrice.text = PriceNormal.ToString("C")
End If[code]......
I made a simple textbox with a submit button and a label and when you type in something into the textbox and hit the submit button what ever you typed in the submit button is suppose to show up in the label box but i type in DaFallenAngel in it and it only shows D why is it only showing D and not the full name? [code]
View 9 RepliesI have an xml document on the internet right. Lets say it contains:
<tag>goose</tag>
What I want to do, is when the user clicks a button in my vb form it looks for the "tag" tag and finds the text inside the tags which is goose. Then it sets a label to equal goose, or whats in those tags.
I've implemented the localization in my windows application with no problem for the label or command button which have a fixed text.
My problem is related to the label which text is merged with some variables or object properties.
E.g.: vb label1.text = "There are " & myDataGridView.Rows.Count.ToString() & " items"
So, how can I set (if it's possible) the localization for these labels? I've this kind of assignment in modules and not in the form. It's possible to set a resources file also for modules?
I have a DataGridView which populates from an SQL query just fine in default mode
using these table names
[firstName] [varchar](20) NOT NULL,
[lastName] [varchar](20) NOT NULL,
[code]....
I have edited the column headers and set the column names to the same values as my table names yet the data is not showing in form load I have set datagridview.AutoGenerateColumns = False I know the data is there if I delete datagridview.AutoGenerateColumns = False then the data is shown with the default headings?
I made project using VB.Net 2005 with multi languages, the first form is MDIParent form with MainMenu and toolbars also there is some changes in properties as righttoleft and text of forms.In my Mainmenu (Menustrip) there is opetion to change the UI Culture and I have already done but I need to change all texts in the form as mainmenu items anf form properties.My quetion is: how can I reload my form again to read the new texts names and mainmenu items names from resx file?
View 8 RepliesI am doing work for a client who has lost the source code for one of their VB.Net WinForms applications. The assembly they have is not obfuscated at all. I am trying to recover as much of the source as I can as C# source and have tried several tools for decompiling assemblies, including Reflector, ILSpy and JustDecompile (all the latest versions), but they all produce code with a huge number of errors in them. Because of the large number of errors in the generated code, I am going to ask about the specific errors (in different questions), get more directed answers and in this way try shed some light on why all the tools are having difficulty decompiling this assembly. This question pertains to the fact that the code generated by all these tools always have a large number of invalid member variables (fields) such as the following:
private short $STATIC$Report_Print$20211C1280B1$nHeight;
private ArrayList $STATIC$Report_Print$20211C1280B1$oColumnLefts;
private StaticLocalInitFlag $STATIC$Report_Print$20211C1280B1$oColumnLefts$Init;
why the generated code has these invalid member variables?
Is there any way to get common control names like Save, Copy or Undo Redo in the user's windows language? (I saw this in some programs which weren't made for my windows language. Also the Yes No Massage Boxes will change...)
View 1 RepliesI am experiencing a problem when trying to convert a rather large VB6 application into a .Net 2005 application. Everytime I try to convert the project I get the following error: "Upgrade Failed: Exception occurred: Can't use character device names in file names"The weird thing is i have tried to convert the project using .Net 2003 and I do not get the error, it does convert.
View 12 RepliesLast year (2010) I came across a FANTASTIC command that allowed me to take a string of variables with a common delimiter and break it all back out into separate variables (possibly an array) with one statement.
[Code]...
As long as the delimiter was a unique specifiable character, this one-statement command could break it out into elements. my memory and point me in the right direction.
I have code, shown below, that works all except for 1 thing: The variables being passed byRef get passed, but once modified in the else section of the "if me.invokerequired" code of RecordData, the variables are never updated in the calling function. To reiterate, the calling function does not receive the updated data that is in the variables custid and amt.When debugging, I see the data change in the else section of "if me.invokerequired", but once it returns from the callback the data is missing.[code]
View 15 RepliesI define some global variables of a class as follows:
Private Class MyClass
Private var1 as Decimal
Private list1 as List(Of string)[code].....
But I found that after this form is closed, all above variables, var1, list1, list2 still exist in memory. I thought they should be collected by gc since the form is already disposed as I confirmed.
Add: I have monitored half an hour after the form is closed. But these variables are not collected by gc. I have an automatic update procedure on the form which uses above variables.Since the above variables still hold values, the automatic update procedure is always called which causes exception. (One quick fix is to check if form.isDisposed in update procedure. But I do not think this is elegeant. Besides, these variables occupy memory.)
Does the memory used in declaring variables are reclaimed by the OS when these variables go out of scope?Does the memory used be released by setting thier value to nothing? if not, then how can I force the garbage collector to run or excecute at a certain/desired time..How about in Windows Forms..How can we make sure that the memory used in initializing and showing forms be released if those forms were closed?
View 13 RepliesQuestion 1: What is the difference between "Background Worker" and "Worker Pool" as indicated within the MSDN samples provided.
Question 2: I noticed while using, AddressOf _Function_, variables cannot be passed; what would be an efficient solution to this?
Question 3: While using multithreading is it required to invoke before setting variables, or only form properties?
Question 4: While using System.Net.Sockets is it safe/efficient to use Application.DoEvents while waiting for new data; or would be using a Do While loop be fine without DoEvents since the action would be multithreaded? Note: there can be up to 2000-3000 sockets in use at a time.
I'm new in .NET programming.I have a class Form1 that includes Button1_Click event.Button1_Click creates a multiple Text Boxies at run time)Here is the class:
Public Class Form1
Dim shiftDown As Integer
Dim counter As Integer
[code].....