Loop Through 28 Checkboxes?

Jan 20, 2011

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]...

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Run Loop Through All CheckBoxes

May 17, 2011

For 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?

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Loop Checkboxes In A Panel?

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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Loop Through Labels In CheckBoxes

Jun 9, 2011

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?

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Uncheck 7 Checkboxes Using Loop?

May 10, 2011

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

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Count The Total No. Of Asp.net Checkboxes, Checkboxes Checked, No. Of Checkboxes Remain Unchecked In Webform Using .net?

Dec 9, 2010

How 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?

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Dynamically Add Checkboxes In A Foreach Loop?

May 8, 2009

I 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...

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Loop To Check What Checkboxes Are Selected?

Jul 28, 2011

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]...

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VS 2008 - Loop Through All CheckBoxes In Frame

Jan 27, 2010

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?

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VS 2010 - Loop Through And Clearing CheckBoxes

Mar 18, 2011

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] .....

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Using A Delegate To Loop Through The Checkboxes And Run Only The Methods Being Checked?

Feb 10, 2012

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?

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VS 2005 - Checking A CheckBoxes Condition With A For Next Loop?

Mar 25, 2009

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.

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VS 2008 - Loop Through Column Of CheckBoxes To See Checked Values

Sep 1, 2011

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

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Check Checkboxes Status And Write Checkbox Label Using A For Next Loop?

Mar 7, 2012

I 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]....

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Save Multiple Times By Doing A LOOP Depending On The Number Of Checked Checkboxes On A Datagridview .NET 2010?

Oct 11, 2011

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)

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Evaluates Loop Condition In Do...Loop Statment To Determine Whether Loop Instructions Should Be Processed

Mar 14, 2011

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]...

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Countdown During Loop - Label To Show How Many Cycles In Loop Are Left

Mar 9, 2011

I know I am missing the obvious. I would like a label to show how many cycles in loop are left.

[Code]...

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Make Loop In Program And Calculate Time Taken To Complete Loop?

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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Getting Loop Through Adding Each Result Without A MessageBox Stop In Each Loop?

May 3, 2010

I have written a function that gets the alexa ranking of a given url, now this function works perfectly but I want to loop through a ListView of urls and grab the alexa rank of each item (url) with my function.The code works great if I put a MessageBox in the loop to test that the function is returning a value but when I remove the MessageBox the loop does not work.I need it to loop through adding each result without a MessageBox stop in each loop.

vb
For Each Item In ListView1.Items
Dim result As Integer
result = GetAlexaRank(Item.Text)

[code].....

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Create A Loop To Loop The Locations Of The Platform?

May 31, 2010

So I made a simple patform game where the player has to jump quickly while the platforms move to the bottom of the screen, as to not touch the bottom of the screen. But, I need to know how to create a loop to loop the locations of the platform. This means that after twenty or so platforms, the same platforms come up again, so that the player will have an "endless" game. I've declared all the platform's locations relative to the location of the first repeating platform:

[Code]...

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VS 2008 Program Works Before Loop But Not After Loop

Aug 11, 2009

I assigned an integer as 1, and looped my program using:[code]I can recieve the packets without looping, but once i loop, i receive nothing.

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Start Button Loop A BackgroundWorker With Sleep OracleConnection Results After Each Loop Till Stop Button

May 29, 2012

I have this little application that runs a SQL query works great, now I want to have a Start Button run the and display results then System.Threading.Thread.Sleep(300 * 1000) for 5 min then run again and display results and loop till I buttonstop_click. unsure if the sleep is the best method.

[Code]...

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For Loop And Last Value From The Loop Is Displayed In The Label

Sep 10, 2009

I am new to VB programming. I have the following code. When I execute my program only the last value from the loop is displayed in the label. I do write my code so that all of the values (years 1 to 5) show up in the label?

[Code]...

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.net - Asp.net Dynamic Checkboxes?

Mar 19, 2010

I have an asp.net page which a user types in a "search" box, the code behind functions/subs etc produce a list of users matching the search criteria. In front of all the users returned in the search results, I have codded a html checkbox. Under the list of results, there is an "email users" button...

so.. I want to be able to click a number of checkboxes beside the results and then click on "email users" button which should take me to another page with email functionality so an email can be sent to all the previously selected users My confusion is over getting the "selected" user list from the results into the email page.

Because the checkboxes are manually coded within the code-behind file (ie the code basically generates a bit of html and pushes it into a label "placeholder", so I dont get any control functionality to get the checkboxes using the vb code, or can I?

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Add Checkboxes Into Datagrid?

Nov 9, 2009

how to add checkboxes into datagrid.

what all references should be made.

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Add Only Checkboxes In Column 4 And 5?

Jan 17, 2012

I have a listviw with 5 columns. how to add only checkboxes in column 4 and 5? Every time I add an item to that listbox the first three columns will have text and the last two will have always only checkboxes?

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Asp.net - .NET Checkboxes Checking?

May 14, 2012

I have a form which contains a checkbox field. On page load I want to create a separate checkbox for each customer in my Database. The code I have to create the checkboxes for each customer works fine. However, I also want to check in the database if the customer is set to unauthorized if they are then I want to check there box. I also have code for the case where the user checks a box. If a box is checked I update the database setting the unauthorized attribute to true. My problem is when I check a box it works fine and the box is checked, however if I reload the page all the boxes are unchecked. So either my database update is not updating the database or the way I check on page load for checked boxes is incorrect. Any ideas?

The code for the asp checkbox field:

<asp:CheckBoxList id="check1" AutoPostBack="True" TextAlign="Right" OnSelectedIndexChanged="Check" runat="server">
</asp:CheckBoxList>

The Code for the page load:

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim sql As String = "SELECT Name, unauthorized, ID FROM Customer ORDER BY Name"
Dim dt As DataTable = db.execDataTableQuery(sql, "Customer")

[code]....

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Asp.net - List Of Checkboxes?

Jan 10, 2011

I'm a newbie in VB.NET and ASP.NET. This is my problem:I retrieve a list of records from DB and, for every row, I need to show 4 checkboxes. I can use a checkboxlist for every rows, but it's not so clear how I can process the results after the submit.

I've some object and some operations available for that object. From database I extract a list of object with all operations. For every operation I want to show a check box to enable or disable the operation. The result is something like that:

[code]...

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Group Box With Checkboxes?

Nov 27, 2011

Using VB

Say I have five checkboxes in a groupbox. I want to run an if then statement where if all boxes are not checked I would perform a certain action. I currently have it set to work using code similar to this

If box1.Checked = False And box2.Checked = False And box3.Checked = False And box4.Checked = False And box5.Checked = False Then
End If

Is it possible to reference the entire groupbox has having a false boolean property?

While doing this is managable - what if I had more check boxes?

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Have 15 Checkboxes In The Form?

Aug 19, 2009

i have 15 checkboxes in the form

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'Dim a As Integer
'For a = 1 To 15
'If ColorDialog1.ShowDialog = DialogResult.OK Then

[code]....

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