Re-sort A Combobox From Checkbox-state?
Mar 13, 2009
Hi,I´m trying to build a form that allows user to choose if he want the combo-boxes sorted or not. The comboboxes are filled when form is loaded, when user clicks on checkbox (chkSortList) then I want the comboboxes to be re-arranged. Can anyone give a hint how to do that ? Tried cmbMerk.Refresh(), cmbMerk.Update() ... but the sort-order do not change. I can re-load the items to the combo-boxes but is there a better way to do it ?
RCazzo'Code examplePrivate Sub chkSortList_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles chkSortList.CheckedChanged
Select Case chkSortList.CheckState
Case CheckState.Checked
[code]....
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Aug 24, 2011
Does anybody know how to sort a Listview by checkbox state, so all checked items are at the top of the list. I'm targeting Framework 2.0.
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May 1, 2012
In a VB.net app, I have several checkboxes created with regular ASP controls, i.e.asp:CheckBox ID="cb3" runat="server" Checked="true" />I'm trying to implement a "Select all/none" functionality but I'm having a few problems. The Javascript is not changing the state of the checkboxes in Internet Explorer (v9). I tried debugging with IE's dev tools and the checkboxes are definitely getting their checked property set to true. (Also tried setting to "checked".) Here is the JS:
function setCheckboxes( state )
{
var inputs = document.getElementsByTagName("input");
[code]......
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Apr 13, 2010
im trying to figure out how on earth to set a checkbox on a DataRepeater row to true. Nothing ive tried seems to work. Ive searched all over, and all i seem to find is ways to check the state and in ASP.
Text boxes would be:DataRepeater1.CurrentItem.Controls(
"textbox1").Text = textbox2.Text.However, checkboxes wont work in this way. DataRepeater1.CurrentItem.Controls("Checkbox1").Checked = True"Checked is not a member of windows.forms.control" - ive tried various things in order to set it to true/false, but whatever i do doesent work. I expect its going to be something stupidly simple, but its those things that annoy the most IMO!
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Jun 7, 2011
form 1 has a list of checkboxes on itform 2 needs to check if one of the form 1 checkboxes is checked.
texton is a value passed from a function parameter of type string
If (Form1.Controls.Item("checkbox" & texton).checkstate" = True) Then
'Do Something
[code]......
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May 26, 2012
In a VB.net app, I have several checkboxes created with regular ASP controls, i.e. <asp:CheckBox ID="cb3" runat="server" Checked="true" />I'm trying to implement a "Select all/none" functionality but I'm having a few problems. The Javascript is not changing the state of the checkboxes in Internet Explorer (v9). I tried debugging with IE's dev tools and the checkboxes are definitely getting their checked property set to true. (Also tried setting to "checked".) Here is the JS:
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May 8, 2010
using VB net(2005) in Win Forms, I would like to remember the state of my checkBox1 (checked or unchecked) as BindingSource change position.I read that I could use the "Tag property" I have never use it and further more do not know how.
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Sep 8, 2009
There is a check box in my webform. whenever i tick it ..and click on back button it will not retain its state ..when i comeback using the next button to the same page.Note: view state is enabled in the control There is no code in the page load event
Code below:
Protected Sub chkBx_SR_wu_SelectedIndexChanged(ByVal sender As Object, ByVal e As EventArgs) Handles chkBx_SR_wu.SelectedIndexChanged
[code].....
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Mar 18, 2009
to be able to print a list of objects in a user-defined way, i've implemented an IComparer (sortclass), which is able to sort any object by its property. I have a list that can be printed (first a pdf is generated trough the object, then passed to the printer), all done by clicking 1 button (print button).
The internal ICollection (list of) is perfectly sorted, however, the routine to create and print the objects is apparently called to soon... since not all objects are completely sorted when send to the printqueueu. A check of the list after all objects has been send to the printer proves however that the list is printed.
[Code]...
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Jan 31, 2012
I am trying to detect whether a checkbox is checked and display a message for the ones that are.I am running Visual basic 2010 and The code is as follows: Dim message As String If CheckBox1.Checked = 1 Then 'MsgBox("Checked") message = message & CheckBox1.Checked & vbNewLine MsgBox("You Have Choosen" & vbNewLine & message) question is what is wrong with this code? I get an error that message value has not been declared.
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Jan 9, 2009
Im making an application that needs to use an explorer-like interface to let users select directories from their hard drive, so I've got a TreeView that I load all of the folders into and I have the checkboxes on each node enabled. The problem is that there are only two states for the checkboxes so if someone selects a folder, then minimises that node then they no longer have any way of knowing that sub folders are still selected.[code...
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Feb 3, 2011
I have a DataGridView control in a .Net application that contains a checkbox column. I would like for the user to be able to edit the checkboxes. The issue that I am running into is that I cannot detect the state of the checkbox after the user checks it.
If the checkbox was originally checked, then it will return checked as soon as the DataGridViewCheckBoxCell gets focus. But, if I click on the checkbox again and unchecks it, then it still returns checked. From that point on, it will always return checked regardless of the actual state of the checkbox until it looses focus and gains it again.
Likewise, if the checkbox was originally unchecked, then when it gets focus it will return unchecked in the click event regardless of what the state of the checkbox actually is.
Here is my code.
Private Sub grdTemplates_CellContentClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles grdTemplates.CellContentClick
[Code].....
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Jan 10, 2011
I created a control so that I can add label, txtbox and checkbox during runtime. I was able to do this successfully but after this, I need to get the state of this checkboxes every time the user check it, RUNTIME.[code]...
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Jun 12, 2009
I'm used to Access and have just created my first form in VB in Microsoft Visual Studio. I have added four check boxes to a form and they are connected to a SQL database and working fine with one exception: When I create a new record, the initial state of the checkbox is null so it shows a green square in the box and you have to click twice to actually place a check in it even though in the properties, the three state is set to false.
When I go into DataBindings/Advanced, and set the null value to zero, it fixes the problem with starting out as a null state in a new record, but then when I create a new record it carries the checked and unchecked state from the previous record over. (If it's checked in the current record and saved and then you click on new record, the checkbox stays checked.) I can't even figure out the correct syntax for manually setting the checkboxes to a false state in the new record event to fix it.
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Apr 1, 2010
I need a form width a checkbox "Don't show this again" for my winform, but how can i make this so when my Form1 loads it checks the state of the checkbox using the getsettings option?
How can is save the checkbox state to the registry? and how do i get the state?
If Form2.Checkbox.checked = Getsettings() Then
Form2.showdialog
Else
Goto Skip
End IF
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Nov 15, 2010
I'm making a form with a checkbox where if checked a target file is appended with text-A and if Unchecked the file is appended with text-B How can I do this?
[Code]...
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Sep 24, 2009
I have a "Remember Me" check box that will remember the user's username and/or password if he/she chooses to. When the check box is checked a message box appears saying that it will remember their password. When I save the "Remember Me" check box state as checked the form loads the check box as checked which makes the message box appear on form load. Is there anyway that I can prevent it from doing that? I'm using "My.Settings".
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Jan 20, 2011
I just want to repeat a code block if a CheckBox it's checked...So, i'm very novice to programing in Visual Basic and i'm learning by myself doing little things like a Ping Tool.I have this code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Label1.Text = ""
[code].....
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Nov 18, 2010
I have a WPF window with a TreeView that contains a checkbox at each node. I want to be able to capture the state of the checkboxes but I don't know how. (I am trying to do this without writing much of the code in XML)
Here is what I have in the XML:
<TreeView Grid.Column="1" Grid.ColumnSpan="3" Grid.Row="1" Height="200" HorizontalAlignment="Left" Margin="126,299,0,0" Name="TreeView1" VerticalAlignment="Top" Width="220" ItemsSource="{Binding}" DataContext="{Binding}">
[Code]....
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Sep 8, 2009
How to store the state of my check box list tick boxes accross the page life cycle? Here I have a unbound checkbox list control where values comes from xml file. How to retain the state? Moreover, when I click on Next button to the new page and comeback state is retained. But when I click on the back button and come to the same page state is not retained.
Protected Sub chkBx_SR_wu_SelectedIndexChanged(ByVal sender As Object, ByVal e As EventArgs) Handles chkBx_SR_wu.SelectedIndexChanged
Dim i As Integer
i = 0
Try
For i = 0 To chkBx_SR_wu.Items.Count - 1
[Code] .....
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Mar 25, 2011
On the form that i have there is a listview with checkboxes enabled it all works fine but when i close and reopen the form all the previous checked checkboxes are uncheched . Is there a way to save the state of the checkboxes and on form load to restore them ?
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Mar 16, 2011
Iam looking for a way to save a checkbox' state between runs. So that if a checkbox is checked and the program is the closed down, it will remain checked when the program starts up again and vice versa. I've found som deferent guides around the web but i cant seem to get it to work..
Private Sub Form1_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
Dim ExtApp As Integer
[code].....
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Nov 30, 2010
Firstly i'm not asking for the exact code here but the below is what i'm trying to do:I have a gridview with DropDownList and CheckBox and I have a button outside the gridview that will add a new row within the gridview.I have no problems with the adding row but I have a problem with saving the state of the checkbox/drop down list.Everytime I checked the checkbox and add a new row, all the DDL/CB will be reset.So how can I do it so that when I add a new row, the checkbox that I've checked before will still remain check.
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Dec 22, 2011
Public Class Form1
Private Sub CheckBox2_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CheckBox2.CheckedChanged
[Code]....
As you can see, when I enable/disable my checkbox it enables/disables my textbox.
The thing is, I have more than one textbox, how can i add more textboxes to be enabled/disabled?
I tried using If TextBox2.Enabled = True AND TextBox1.Enabled = True Then
TextBox2.Enabled = False And TextBox1.Enabled = False. (of course fails)
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Oct 29, 2011
I have a checkbox on my form chkActive, I want to deal with it in 3 cases. [Code] I don't have a problem with building the query, my problem is with clicking on the checkbox by clicking on the checkbox by mouse, I can only get Checked and Unchecked, I tried to use the right mouse button click, it did not fired (or I did not test deep enough) I know I can put a button to change the checkbox value to Indeterminate but that will be ugly. I can replace checkbox with combo, which is what i am thinking of doing but I just wonder: Cannot I set the checkbox state to Indeterminate by mouse any how?
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Mar 31, 2010
It looks like there is a bug in the DateTimePicker control, because I don't find any event specific for the changing the check state of the checkbox, only the ValueChanged event seems available. So that event should trigger every time the date in a dtp is changed manualy, or by choosing a date from the calender or when the checkbox in the dtp is checked or unchecked by clicking on it, the event ValueChanged should be triggered. But it doesn't do that all the time.
[Code]...
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Mar 19, 2012
I Have a web form in a asp.net web form 3.5. The listview has a checkbox on the item template, I am trying to retain the state of the checkboxes through pagination . Once I can page through records and preserver this state I need to send this to a print page which takes those ids...I have this working, but it will print only the records on each pagination. [URL]
how can this be done, the code below is not working.
Protected Sub ListView1_ItemCommand(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.ListViewCommandEventArgs) Handles ListView1.ItemCommand
Dim myButtonPrint1 As Button = CType(ListView1.FindControl("printButton1"), Button)
If e.CommandSource Is myButtonPrint1 Then
[Code].....
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Sep 16, 2009
I am trying to access the checked state of a CheckBox from a BackGroundWorker thread. I am utilizing properties and it seemed to work just fine. However, I'm using 10-15 CheckBoxes and I think using the InvokeRequired property would probably be best. I've looked over JMC's thread that talks about how to access controls from the worker thread a bunch of different times and I can't seem to grasp the concepts. When it comes to the InvokeRequired property, I suppose I understand why it is needed. But I'm not sure if I understand it completely.
From the example that JMC provides:
vb.net
Private Sub ResetTextBoxText()
If Me.TextBox1.InvokeRequired Then
Me.TextBox1.Invoke(New MethodInvoker(AddressOf ResetTextBoxText))
Else
Me.TextBox1.ResetText()
End If
End Sub
If I'm not mistaken, this tells us that if invocation is required to access the control, then we access via the MethodInvoker if not, then we just access to directly? So, if I need to check the checked state of a check box, I know I can just put a conditional statement after the Else line if I can access it directly. But, if I can't how would I use MethodInvoker to check the checked state? And then, when calling it from the worker thread, would I just call the sub?
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Oct 19, 2011
Using VB.Net, how can I save values from a textbox and checkbox when the application is closed? When the user opens the application again, the textbox and checkbox should be filled in with the same values as before.Do I have to save these values in a database, or what other options are there?
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Jun 4, 2011
I have created an Unbound DataGridView. It has has 4 Columns Name, Last Name, Picture, CheckBox. I would like to do change the checkbox's enabled state true or false (editable or not) at the time I add the row
Not its checked state :) and would also like to change image that is placed in the Image column cell during the add row.
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