Updating Labels Upon Show()?
Nov 6, 2011
My project will end up with several forms to be filled out. Once a form is completed, a button can be pressed revealing the next form or previous form if something is going to be changed. I've been using Me.Hide() so that the users screen doesn't get to cramped.
I'd like a few things to happen. If an input from one form changes a value on another I'd like it to update automatically, I figure some event on button_click or form_load. My problem is that different things work depending on how I open or hide a form. I would also like the forms that have been Me.Hide() to retain the value in the textboxes. Let me show you from a practice vb project so that you don't have to dig through the larger code.
Public Class Form1
Public Shared Info1, Xcord, Ycord As Double
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[code]....
1) If I don't use "Public Shared", TextBox1.Text does not update.
2) If I reopen Form1 with the "Dim First As New Form1" method it seems to refresh the Form1_Load. If I use My.Forms.Form1.Show() it does not. Another side effect is that clicking the close button on the ControlBox ends debugging when using "Dim First As New Form1" and does not when using My.Forms.Form1.Show(). Wierd. I've set ControlBox to False on Form2 and Form3, otherwise the program remains running in the task manager. I've read other solutions to that problem, but my solution seems to work for me so far.
3) Xcord and Ycord are my attempts to have the other forms open on top of the first form. My problem now is that I have them set to CenterParent and they open where the first form used to be. If I move Form1, Form2 and 3 open where I've left them instead of centered on Form1, maybe. Form1 is set to WindowsDefaultLocation. My new plan is to set to manual and have Xcord and Ycord update and then offset based on form size. So far I haven't implemented that code.
4) Me.Close() ends the program.
Public Class Form2
Public Info2 As Double
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim First As New Form1 'Done so that Form1.Info1 works
[code]....
I'd like a consistent method that represents good programming practice. My understanding is that Public Shared is frowned upon. I'm also wandering if Me.Hide() is the right choice. I've also played around with .ShowDialog() which didn't work?
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Jun 1, 2012
Well im currently developing an application for public use, I have a login screen in which the user enter's their registered credential's and the progressbar loads by increments of 3, now i placed 6 labels ontop of eachother and where the progressbar coding is i put:
If Progressbar.Value >= 1 Then
Label3.Show()
If Progressbar.Value >= 20 Then
Label3.Hide()
Label4.show()
And so on up until Label8 Show at 100%,
Now the problem is... As i have placed the labels ontop of eachother i need them hidden until they are called to show, i have tried adding a background worker to do this but have had no luck, all i see is the labels overlapping eachother when i run my application when i want them hidden untill Label3.Show() is called, and then to display them as they are called and hide them when another one is called to show...
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Oct 5, 2010
I have a windows form where i try to update a form which has 1000 labels. By update i mean i try to set the color of the labels. And i am doing this update in windows form timer every 1 sec.
My problem is the UI freezes. I tried using a thread. In the thread i tried to call the update code, but still the UI hangs.
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Apr 19, 2010
I have been coding an application for a LeaderBoard for a game. I have all the Login sorted using Mysql and even have all the Account infomation displaying in lables etc. for account info form. Now I am trying to UPDATE information and this is how I was trying to do this...
Dim UpdateInfo As New MySqlDataAdapter
Dim mycommand As New MySqlCommand()
Dim mydata As MySqlDataReader
Dim query = "UPDATE Login SET Pword = '" + UpdateTxtBox.Text + "' WHERE Uname = " + Login.Uname
mycommand.Connection = conn
mycommand.CommandText = query
UpdateInfo.SelectCommand = mycommand
mydata = mycommand.ExecuteReader()
But comes back with an Error saying... Unknown column 'username here' in 'where clause'. Now the username is in the database as I have just logged in with it and I am taking it I have the Query wrong somewhere.
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Mar 23, 2009
what i'm working on is, i have VB with a loaded Access DB, and i'm using a query to display the information, in a list box and in indivual labels. i have it so it will allow new entries to be made, however i can't figure out the exact code to get it to update to the program the only code i currently am able to show is this since everything is basically being done through access
[Code]...
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May 7, 2009
is it possible to show 2 labels in a form (one after the other) with the click of a button for example i have label1 and label2 (but label2 is like hidden), the form loads with label and a button when i click on the button, label2 shows....is it possible?
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Aug 23, 2011
I have this labels in my project[code]...
What's the best way to hide/show them?
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Nov 17, 2009
I have designed a program that, when the "caclulate" button (btnCalc) is pressed, it asks the user for a file name, then pulls data from that file (file is a .txt of 100 decimals, one per line) and displays the Total, Average, Highest and Lowest. To do this, I have placed all the data into an array, and then used the array to get the information I need. All the code is in place, the only issue is that when the "calculate" button is pressed and the file name is entered, nothing happens.Need to figure out why the values are not displaying in my 4 labels (lblTotal, lblAverage, lblHighest, lblLowest)!!Here is the code:
Imports
System.IO
Public
[code]....
(For the record, I know I could get the data in one pass, however, being a beginner, I like seeing each value computed separately.)
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Mar 1, 2010
I have a "housekeeping Form" set up that...when triggerd by the main form, updates records, sends email, clears and refills an access table all of which runs from a Form.Load Event my problem is the form "PLEASE WAIT WHILE SYSTEM IS UPDATING" will not fully load while all these things are happning I have tried ME.Show and ME. Activate
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Oct 21, 2008
I created a program that has serval labels on a form and a listview object. It has a button that when clicked reads a textfile and loads up values in the listview object. I then can click and drag text from the listview box to any label on the form and then the program removes the value from the listview box. Now, my question is how can I instruct VB to save these values in the text property of the labels so that the next time the program is loaded the labels will contain the values loaded during the last run time session?
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Feb 5, 2009
With VB, but I've got the few basics down, file naming, adding objects, naming objetcs, etc. But the reason I'm on here is because I cannot complete even the first step. Our form is 640 X 480, and we need to have two labels, both have vertical scrolls. I know how to add and resize the labels to meet my needs, but I do not know how to create scrolling labels. Or are they text boxes? On our bubble chart (Do you know what that means?) it says lblInformation. We are going to have clickable radio buttons which will update the lblInformation with info about each of the radio buttons.
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Apr 19, 2012
I'm trying to make a program that allows the user to click on labels which have a number in it and then that value has to be stored into a different label.
For example the user click on label1 and the values goes into label12, then it click on label3 and the values goes to label13 and so on.
At the moment I can only code on the respective label underneath (1->12,2->13...) but it has to be in any order (5->12,7->13...)
Here a picture and below my code:
'defining the click order....
Private Sub Label1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Label1.Click
[Code]...
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Jan 25, 2012
I have a webpage with a form that is used to edit some object. This object contains a Collection of other objects defined like this: Public Overridable Property Employees As List(Of Employee)
On a form I can delete an employee, add a new one or modify existing one. When I click save new values are sent to the server. On a server I check if the user exists. If exists then I modify its values, if it does not exist then I add it. All employees that exist on the server and were not sent are marked as deleted (State changed to EntityState.Deleted). I try to use the following code (dbCollection = database entities, newCollection = collection sent from the form):
[Code]...
This code does not work, because changing to EntityState.Deleted removes the object from collection, and for each loop breaks, since the collection is modified...I know that I can overcome this problem by using a for loop or adding objects to delete to some other list first, but I hope maybe there is a pattern that would make my code nicer.
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Feb 20, 2011
I have a textbox1 and button1 and panel1 (which is used as a popup control)i want if textbox1.text="show" then modalpopup control whose id is panel1 will be visible on buttonclick event other wise .... modal popup control panel1 will not be shown ...how to do this ? using vb.net ?
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Jun 6, 2011
SQL statements:
SQL = "SHOW TABLES;"
Try
conn.Open()
The remarked area works fine when I'm accessing a specific table. I've successfully inserted the products_model field into the combobox too. The datagridview does show the table names in the db using the SHOW TABLES sql statment, but I'm not understanding how to get this info into the combobox instead.
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Aug 14, 2009
Can anyone help me to make a program which include a Button shows the current Month and the year and when clicking the button it shows a DialogBox ith a MonthCalender (this one I have done - the Monthcalender shown on a Dialogbox).Further I want to change the month shown as a Text of the Button when I click other Buttons to make the calender to go backwards or forwards,
Another thing I want to know is how to make the TreeView which expand / reveal another line or something on clicking the "Plus".I am learning only VB 2005 / VB 2008, please give the codes etc for VB 2005 only.
BTW, Can you tell me how to paste a picture in this writing place? I tried to paste the picture to shoow what exactly I want to do, but I couldn't do it.
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Mar 7, 2010
I'm writing a program for my algebra students to practice integers.Stuff like....
3-6
-4 + (-5)
3(-4)
-15 � 3
etc.
I want to show an explanation and for the addition and subtraction, I want to show it on a number line. For example, if the problem is 3 - 7, the number line should show and arrow to that goes right to 3, and then left 7 units (starting from 3). Then the student can see that the answer is -4.I could probably do this with some string manipulation, but what would be the easiest way to do it in a picture format? Maybe a bitmap.
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Jun 8, 2011
how do you show information from a datagrid cell to show up in a text box in another form, this is for a college project.
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Nov 7, 2010
How do you refresh a datagridview in code to show to show new data in the DB?
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Sep 8, 2010
i allready have date values in a datagridview and datasource is Access table
dim endindex as integer
datagrid.currentcell = nothing
dim table =mydataset.tables("Booking")
[code].....
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Apr 28, 2010
I am trying to add labels to my form on the fly and I don't know how many there will be and this is my code:
label1 = New Label()
label1.Name = controlName
label1.Size = PreferredSize
FlowLayoutPanel1.Controls.Add(label1)
ListBox1.Items.Add(controlName)
The only thing that I get is the first label made and I shows nothing else.
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Nov 28, 2011
Is there anyway to have a for each statement that gets all of the labels in the form except for a few?example i have
dim x as label
for each x in me.controls
x.tag = randomnumber
next
i want to get every label except for 2 of them (name1 and name2)
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Oct 15, 2011
Because I am trying to make a cashier program and my idea is like this so i want to have some thing that will allow me to add labels when the person cashier presses the add button to show in a big list is there any way ?
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Dec 29, 2011
I have a little experince in programming vb 6. I'm now trying 2010. I am making at bingo program for my math class. I have 90 labels I want to give different values from 1-90 in random orders.In vb 6 I would write a code that would look something like this[code]...
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Jul 13, 2010
HelIs there any single line or few lines code to disable all the labels [i.e., 250+] and can be able to make few of them visible at times?
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Feb 8, 2012
Private sub updatelabels()
If me.invokerequired then 'entire form -- ok ?
me.invoke (new methodinvoker (addressof updatelabels))
[code].....
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May 15, 2012
I have a form in which there are two checkboxes then based on which check box the user selects a
series of labels and combo boxes are shown. I can't get the series of labels and cbx's to show and
to show when the check box is clicked.[code...]
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Feb 14, 2011
I am storing labels in a collection array called mylabels.now I want to not only remove a label from the array but also from the picturebox it is drawn on.I am trying the following
mylabels.RemoveAt(x)
but although the labels are removed from the array, even on picturebox refresh they donot disappear from picturebox.
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Apr 21, 2011
I want to put the text into the labels.
Label1.text is "a",Label2.text is "b",................
How
Public Class Form2
Dim Labels As List(Of Label) = New List(Of Label)
Private Sub Form2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code]....
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Mar 20, 2012
I want to make LabeledPieCharts in WPF (Source: Bea's Blog )I have downloaded the DemoProject and it runs. If I want to create a LabeledPieChart it fails with this Error:
The Tag "LabeledPieChart.Series" isn't in XML-Namespace "clr-namespace:Controls;assembly=Controls". Line 65 Position 14.
Here is my code:
[code].....
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