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 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]....
This is my problem.I have a field set up in MS Access to Boolean YES/NO, this field is populated when the user check a checkbox on a windows form. If the user check a checkbox, the value is written as checked in the data field (MS Access).The problem is when I search for the user information, I need the information from the Data base to populate(return) to the windows form. Example: If I enter a users phone number and the user data is present, the form gets populated with the information the user previously entered which was store in the database.Example: If the user selected checkbox1 and submits the form. When I search for the user info, the check box should check(populate) because the user had checked it on submit.Here is what I have done:
[code]...
I am getting the check value correctly in the database using a Boolean.Here is one of the errors I am getting. Unable to cast object of type
'System.Boolean' to type 'System.Windows.Forms.CheckBox.I am having trouble putting the codes in a code tag or block
I have a Boolean that writes to a data field. The data field(column) is set to YES/NO, if the user check a checkbox, the value is written as check in the data field.The problem is when I search for the user information, I need to get to form to the state it was in when the user submitted it.
Example: If the use select checkbox1 and submits the form. When I search the form, I need to make that particular check box check.
[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?
I have three Check Boxes If No check boxes are checked how do i make a msgbox pop up saying " Please Choose One Of the Options To Begin"?
View 13 RepliesQuestion 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 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 RepliesI 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 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] .....
This code will display selected checkboxes Text in textbox as in the order I checked it 1,2,3,4,5,6,7,8,9. But it will not display selected checkboxes Text in textbox after 9
Partial Class _45seater_WebUserControl
Inherits System.Web.UI.UserControl
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim str As String = Nothing
Dim id As String = Nothing
How to show after chekbox10, checkbox11, checkbox12 in text box as 10,11,12 ......so on using this code
If i have 55 checkboxes with different text 1,2,3,4 and so on and a textbox where it display how many no. of checkboxes checked.i want to multiply the multiple selected checkbox text with how many checkboxes are checked in other textbox..i want to do this using vb.net, asp.net
View 1 RepliesSuppose 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 RepliesWhat I want to do, is to make VB2010 display a Message Box when both checkboxes are selected. I need this bit of code for a larger project, which about 20-30 people are waiting on me for.
View 2 RepliesI'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
I have a piece of code for a program where when a specific checkbox is checkedunchecked (In this case "Allyellow") it checksunchecks any checkboxes within a group of 14 with a lightyellow backcolor.
While the piece of code below does this fine it seems to me to be very clunky and it must be possible to streamline it.
Private Sub Allyellow_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Allyellow.CheckedChanged
If Allyellow.Checked = True Then
[Code]....
Bind a CheckBoxList Control to a database where it will select 13 things out..I want the easiest way to check which checkboxes are checked and which aren't and add to my database of features the boolean options 1/0 if they are checked or not.
View 2 RepliesIn my Windows Form I have a ComboBox that is filled by a Stored Procedure with a list of names. I have the Combobox set for AutoComplete to "Suggest" and From "ListItems". When a user starts to type in and the AutoComplete does not find any matches in the listitems the user can tab out of the ComboBox and leave what they typed in the combobox even though it is not one of the Valid Items. Is there a way to check the Comboxbox to make sure of of the selected Items has been selected?
View 3 RepliesUsing .Net, I need to generate a response based on only the checkboxes on my form that have had there states changed. So how do I know if the check box has changed from its previous value before submission. I can't use the onchange event because the user may check multiple boxes before submitting.
View 3 RepliesI use ADO.Net to call a stored procedure that retrieves data from our database.I put that data into a data table using this code below:' set Ready ResultIDs in databaseDim dt As New DataTabledt.Load(cmd.ExecuteReader)
View 3 RepliesI am using Windows Forms. I want to check all checkboxes in the datagridview.
View 4 RepliesHow can you check all the checkboxes of all the items in a listview?
View 2 Repliesi am currently having problems with Datagridview, for example when i select the first checkbox, second checkbox onwards.
I would like to update the textbox on my form to display '2' records selected. But there is one problem i faced is that when i deselect the checkbox, it does not update. It still display '2' record selected. What event handler should i use to get it to work?
Private Sub DataGridView1_CellContentClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles dgvAssignGridView.CellContentClick
[Code]......
If in textbox the default textbox value id 1,2,3,4,5,6 ...... upto 55then the following checkboxes would be checked according to the text display in text box...if textbox1.text =1,2,3 then in my webform checkbox1, checkbox2, checkbox3 would be checked ... on page load event...
View 2 RepliesI have a piece of code for a program where when a specific checkbox is checkedunchecked (In this case "Allyellow") it checksunchecks any checkboxes within a group of 14 with a lightyellow backcolor. While the piece of code below does this fine it seems to me to be very clunky and I know it's possible to streamline it any number of ways.
Yellow Check-boxes
Private Sub Allyellow_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Allyellow.CheckedChanged
If Allyellow.Checked = True Then
[code]....