I have a form that uses 28 checkboxes (checkBox1 ~ checkBox28), 28 labels (label1 ~ label28), and 28 textboxes (textBox1 ~ textBox28). These items need to be visible/invisible depending on the mode of the program (there are 5 modes). I could specify each item individually with visibility, but that requires a whole lotta code! Is there a way I can loop through 28 labels?
View 4 Replies[code]...
I can quite see that ccleaners checkbox is enabled, even though the color is grey. I have also seen this method on a few applications before.
My argument is i have always been lead to beleive this is some sort of coding standard to try to tell the user 'caution'
as a starter project I am trying to create a list of checkboxes with the text as takeaway menu dishes & have labels assigned beside them containing the prices. if some of the checkboxes are checked I would like the total of the prices in the corresponding labels to appear in a text box & the dishes on the checkbox text to appear in a message box. I've managed to code my messagebox output but can't seem to figure out how to add up the selected labels.Here is my code so far, could someone please suggest a way of achieving what i'm trying to do.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim dishes As String = ""
[code].....
On a form I have 28 check boxes, each one represents a day out of a 28 days. I would like to be able to loop through the check boxes and assign a value to each day instead of checking the value 28 times.[code]...
View 8 RepliesFor Accounts As Integer = 1 To 10
If Cbx1.Checked = True Then Call Login1()
Next
What I want to do with this is run the loop through all 10 Checkboxes Cbx1>Cbx10. How do I use the & to do this so where the number 1 is I can replace with Accounts variable?
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]...
I have seven checkboxes namedchkDOW1......chkDOW7I want to use a loop to uncheck all checkboxes, i was thinking about this, but it does not work
View 11 RepliesHow to count the total no. of asp.net checkboxes, checkboxes checked, no. of checkboxes remain unchecked in webform using vb.net ?I m using Visual studio 2008 with vb as a language ..I my webform i have 10 checkboxes...i wanna count total no. of checkboxes in webform in textboxes1 total no. of checkboxes checked in webform in textbox2 total no. of checkboxes remain unchecked in webform in textbox3?
View 2 RepliesI have the following for each loop which loops through a registry key and reads all the values:
Dim returnValue As RegistryKey = Registry.LocalMachine.OpenSubKey("SOFTWAREMicrosoftWindowsCurrentVersionRun")
Dim keyname As String = "HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionRun"
Dim values() As String = returnValue.GetValueNames
[code].....
What I am trying to have been highlighted in bold.. Each time the loop executes and reads a value from the registry, I want the code to create a checkbox which has a unique name and text according to the value that was read... So the number of checkboxes will depend on number of values that is got from the registry...But this doesn't work. It only creates one text box and the text of the textbox is also incomplete...
I have a input form that has a number of check boxes on which relate the users enquiring courses. I need to create a loop of some sort that allows each checkbox to be checked it is selected. If so, output that within a message box. Thats it put simply anyway.
I have removed a lot of the code that is not related to this query but my code at the bottom is the message box that i wish to output all details in.[ocde]...
I thought I could use this, to loop through all checkboxes in a frame:
For Each cb As CheckBox In Me.frameSearch.Controls
cb.enabled = False
Next
But it walks through once, then it comes with error:
Unable to cast object of type 'System.Windows.Forms.Label' to type 'System.Windows.Forms.CheckBox'.
There are indeed labels within 'frameSearch', but I thought that the "For Each cb as Checkbox" would loop only through all checkboxes..? Following does work, but it seems a bit of waste of CPU time, since it will loop through all controls!
For Each cb As Control In Me.frameSearch.Controls
If TypeOf (cb) Is CheckBox Then
cb.Enabled = False
End If
Next
How to do this more effectively?
I'm doing an assignment for Uni and in my VB.NET form I have some checkboxes, I'm trying to loop through and clear them (I have a button which will clear the form). My problem is that there seems to be no property I can use to set the state of a checkbox when not explicitly telling VB which checkbox I want to use. for example, I can go
WineCheckBox.Checked = False
That will check the box, but I wand to DRY the code up a bit and not have to repeat this for each check box I have, this is what I was trying to do:
If TypeOf element Is CheckBox Then
element.Checked = False
End If
I've tried using element.CheckState and element.Checked and both times I get "Checked (or CheckState) is not a member of System.Windows.Forms.Control".
This is the whole block of code:
'clear the controls
For Each element As Control In Me.Controls
If TypeOf element Is TextBox Then
[Code] .....
Suppose we got a form with some checkboxes. Each ckeckbox represents a method of the same class. Each method takes no arguments, returns no values. Is it possible using a delegate to loop through the checkboxes and run only the methods being checked?
View 4 RepliesMy 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 RepliesI'm trying to have a for each loop in which 5 labels should be created.Each time the loop restarts the 5 labels should appear in a tabpage.The problem is, it only makes a label once, then it keeps on mving the label to a different tab instead of creating a new one for each tab.
It loops 5 times, thus filling 5 labels.Then the next 5 labels should get filled in a new tab.But it just moves the original labels. How do I force it to create a new label each time?
[Code]...
Basically what i am doing is clicking on a picture in a Picture box and posting a label to the spot i click on. in some instances i will need to put as many as 60 labels on an individual picture. Below is a snippet of code that works perfectly fine to place 1 point. What i would like to do is setup an array of labels. Something along the lines of
[Code]...
then be able to loop through the code below until i get all my labels placed. The only issue is that when i try doing that i get an error that Label is a type and cannot be used as an expression. Is there another way to do this that i am not seeing?
[Code]...
I have a few labels on my form:
LblBtn0
LblBtn1
LblBtn2
ect..
I would like to loop trough the labels using the following
[Code]....
I'm trying to loop through a column of checkboxes to see how many checked values there are in that column. The user has to have 2; no more, no less than 2, otherwise an error should show up.
Private Sub Form1_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
Dim count As Integer = 0
Dim x As Integer = 0
For x = 1 To DataGridView1.RowCount - 1
[Code] ....
The error message still occurs when I have only 2 chosen in that column. I even tried this
If CBool(DataGridView1.Rows(x).Cells(7).Value = Checkstate.checked) Then
Is it possible to change many labels inside a for loop? Let's say I have labels 1 to 4. Can I do something like:
for i = 1 to 4
label%i.text = some text
next
Is there a way to change the text of a label using for loop. I mean if i have labels namely "label1", "label2", "label3" and so on. [code]...
View 3 RepliesI used a sub below in form_load to change all label forecolor but do not work.[code]...
View 5 RepliesI have several checkboxes in a groupbox on a vb 2008 express userform. I would like to check the checked status of each when clicking a command button and then write the checkboxes caption to be used in an email or print out. I've tried several methods and always end up with the same error "Invalid Cast Exception". I have read the help on msdn and still do not understand how to make it work. Here is the code I've been trying
Dim chk As CheckBox
Dim sb As New System.Text.StringBuilder
Dim names As String
For Each chk In gbInterior.Controls
[code]....
I have also tried the code below but cannot figure out how to check the status and print the checkbox caption.
Dim ctl As Control
For Each ctl In gbInterior.Controls
If TypeOf ctl Is CheckBox Then
[code]....
I want to be able to reveal and then populate a certain number of labels. The inefficient way would be to SELECT CASE on the number of labels required and then populate these in turn. I am looking for something like this:
For i = 1 to RequiredNumOfLabels
Label & i.visible = true
Label & i.text = DataTable.Rows(i).Item(2)[code]......
is the problem as after the line is executed, lbl still equals nothing.The reasoning behind it is that I was trying to create an invoice generator in vb.net and I was hoping that this would be a simple way to do it - count the amount of items in the order, populate the labels with the names of the items, reveal that many labels.
Is this possible? I have tried a few different methods with no luck. I am more of a JAVA person, but am taking some classes for VB, and have been playing around. This is what I have tried:
[Code]...
I think I'm going about this the wrong way, but would like to know if anyone has achieved this. All I'm doing is printing a simple character map to 255 labels, each label containing a char. Not an assignment, just having fun.
I'm trying to loop through Labels that are named Label1 through Label16 and output integers from Array into the Text property of the labels. I think everything works except I can't figure out how to assign MyLabel the value of the current Label # in the loop. [code]
View 3 RepliesI have attached the form in initial state. What you don't see in the initial state is 10 hidden labels. I want the loop(which I am calling as a function??) to compute the numbers and display in the labels. Example, if I input 1 for the first term, 3 for the second term and 4 for the total terms, the first 4 labels should become visible and have in them one solution each:
1 - 1
2 - 3
3 - 4
4 - 7
Am I way off with what I want to do? Cannot use arrays, must be a loop.This is the compute button:
Private Sub BtnComp_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles BtnComp.Click
Try
[code]....
I have a datagridview with checkboxes in the first column and I want to do a loop on saving the serialnumber(s) when the users decides to check a number of checkboxes Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]...
the problem with this code is that it only inserts the serial number of the LAST checked checkbox and the number of entries of it depends on the number of checked checkbox for example ... if I checked the rows with the serialnumber 123 and 55652341, first the row with the serial number 123 then second 55652341, only 55652341 appears in the database and it is entered twice(twice because two checkboxes are checked)
I am writing an app to be a single button failover of a set of mirrored SQL servers. The app has to handle several other functions (enable/disable and start/stop of services, writing to local registry, copying files from server A to server B, initiating stored procedures, etc.)I have a collection of labels that indicate the status of 4 services on 2 servers, I wrote a function to check the services when passed the machine name, and the service name. Originally I just called the function 8 times (4 services, 2 machines) and populated the labels 'manually'. I have all of this within a timer so that the service status is refreshed every couple seconds. Id like to clean up the code to a single for/next loop that operates on 2 arrays (an array of service names, and an array of labels) such as:
'**Fetch_Status is the function that gets service status, it accepts 2 strings, machine name
'**and service name and returns status "running", "Stopped", as my_status
Dim Services() As String = {"Service1", "Service2", "Service3", etc.}
[code]....
The only reason I want the control array is to be able to use the .Text and .BackColor properties of the labels in the loop. If I make an array of strings with the label names it doesnt seem to pick that up.
I posted in the wrong forum the first time around, and I'm pretty sure that's why it never even appeared. Oh well. THIS is the right forum now, I hope, so here's my problem:
I'm basically simulating bowling. I've created a form that has a "scoreboard" on it, and I'm updating the cells of the scoreboard to display the bowl result. Without doing 21 if statements, I figured I could call a method, send it which roll number it is, and then use a for loop to update each label's text values.[code]...
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?
View 1 Replies