Make A Boolean Be Represented As 'yes / No' Instead Of A Checkbox?
May 8, 2012
WPF: Display a bool value as Yes / NoI'm writing a WPF program in VB.Net 2010 (.NET 4.0) that uses data binding against a simple class that is an ObservableCollection of another simple class I've written. So far I have a DataGrid that shows the information and I can add and remove items as necessary, but I seem to be stumbling with a fairly basic concept:How do I display data in some way other than the default behaviours that the various DataGrid columns allow?I have a boolean called "reversed" in my original class, let's call it "x". I would like the DataGrid displaying the ObservableCollection of "x" to display "Yes" or "No" under the Reversed column instead of a checkbox that is checked or unchecked (DataGridCheckBoxColumn).
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Nov 21, 2010
I'm working in vb.net creating an asp.net web application. I have an SqlDataSource and a GridView on my page:
<asp:SqlDataSource ID="msgUnread" runat="server"
ConnectionString="<%$ ConnectionStrings:edinsec %>"
[code]....
As you can see I was playing with WithEvents but that didn't seem to help. In the above code all I was trying to get was some kind of reaction to the clicking of a checkbox - but nothing happens (no errors, either).
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Feb 7, 2011
There are lots of questions about this but I've not been able to solve my problem using the answers to any of them (after many, many attempts..)
I'm working in vb.net creating an asp.net web application. I have an SqlDataSource and a GridView on my page.
I want to change the DoNotMail boolean value represented by a Gridview checkbox and automatically update in the database if the checkbox is checked from 0 (False, Will Mail) to 1 (True, Won't Mail) here is the code I used. [code]...
is it possible to do a two way sync on the entire gridview when the user hits a button so you don't have to do an update every time a row is changed? because the user might check the box and then check another box then uncheck a box and it would be a lot of updates...
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Jun 27, 2009
i have a form with text boxes for username, initials, and password on.Also on this form are a few checkboxes which at the minute i simply want to save their state to SQL as true or false depending if ticked or not. The checkboxes or text boxes are not bound to anything, and are used only for creating a new record in the table.There is a gridview below these boxes showing already created records.The code im using to insert to SQL with is:
If String.IsNullOrEmpty(UsernameTb.Text) Then
MsgBox("You must enter a Username!")
Else[code].....
For some reason when i create a new record, it saves the check state as -1 for checked, and 0 for unchecked. the table columns are varchar(5) for the check boxes.Using checkboxname.checkstate doesent work either - that saves the state as 1 or 0 (as opposed to -1 and 0)On another form i made for editing existing entries, i have the same text boxes and check boxes, which are bound so they show the record details. when using that form to EDIT an entry, it saves the check box states as "True" or "False" as it should do.Im completely stumped here, because if i create a new user it then breaks the gridview showing users, because it throws up error messages about "-1 not being valid boolean" when it attempts to render each check box in a grid view. how i can make the insert save the check box state as boolean?
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Jan 29, 2009
I have a datgridview with a checkbox that keeps giving me an error. I have checked the data type in SQL(2008) table and I have it set to CHAR(1), NULL = Y, Default value = ('N'). Image attached that shows the error.
The data loads into the grid except for the checkbox state (checked - not checked)Here is my bindings and add column section. Note: The grid will only display info. Text boxes and a checkbox above the grid will actually be the input source.
[Code]...
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Oct 27, 2011
After Filling a DataTable in GridView's DataSource . A column with check box Type appears but it created as read only column and I can't enable it or make it editable... even i tried .readonly = false and still can't be edited
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Jun 23, 2009
how to change column into checkbox with datatype of Boolean?
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Nov 9, 2010
I am querying a MS Access 2007 database to get a recordset in this manner
SELECT LastService Is Not Null AS [Svc], WeekEnding, CarName
FROM tblService;
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Nov 17, 2009
From what I read it is a good convention to name a method that returns a boolean value with the prefix of "is" or "has". So in keeping with this convention I am trying to name a method in my program with this prefix but I am running Specifically I have a class called Day. It is a simple class with a few data members and one method that returns a boolean value of true or false. The name of the boolean variable is isSpecialDay. This class has a method called isSpecialDay which takes the date of the day, applies some criteria to the date and then sets the variable isSpecialDay to true or false. My problem is that the boolean variable is named isSpecialDay and so it the method. What should I do?
Public Class Day
Private TheDate as String
Private DayName as String
[code].....
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Mar 1, 2010
Am using vb.net 2008 and sql2008 and I want to loop thru frmMovement.DataGridView1 and the checked rows shd get populated into frmMovementReceivedFiles.DataGridView2. But I used Cbool, Boolean.TryParse to convert the the checked value but I still get but still the error: "Conversion from string "" to type 'Boolean' is not valid"
The code is as follows. Or ss there anyway to loop thru the checkboxes and populate them in another DatagridView2?
CODE:
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Sep 8, 2010
I have a question about a Select Case, and how to go about writting it.In my pages, I call to a SQL Database, that returns values from a column. The columns present two types of data, numeric and varchar
e.g 2N or .10 (they present nickles) I would like my onscreen to display images, instead of that value (once they have been found). Where 2N = imageNickle + imageNickle, as well as .10 = imageNickle + imageNickle (or display 2 of the images in place, rather) I would like to just focus on the (varchar) at this point. Is their an easier way to write a select statement than say:
[Code]...
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Mar 12, 2009
I think I might be going mad because I have loads of strings which are being converted into dates and one pesky little one wont go through.
Code:
"Feb 20 10:36"
and
"Dec 11 14:17"
Are acceptable and parse perfectly using Date.Parse() however...
Code:
"Sep 24 11:25"
Does not.
The error I get is:
The DateTime represented by the string is not supported in calendar System.Globalization.GregorianCalendar.
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Aug 9, 2011
I have a application which gets info from an external feed where dates are in the format ddMMM. I'm trying to turn them into full date format so I was using DateTime.ParseExact. Which was correctly working out whether it should be 2011 or 2012 . But it is erroring when trying to parse 29FEB (which should be 29 Feb 2012. I can guess why its erroring. But if that correct behaviour is this documented and is there a better alternative? [code]
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Sep 20, 2010
I have a table in a data grid the columns are bound to the columns...
SQFT QTY WIDTH LENGTH
i also have added into the datagrid an unbound column called Yeild%.what i'm trying to do is the following formula
SQFT / (QTY * (width * length / 144) and have the result return the answer in the unbound yield column for that row represented as a percentage
So if SQFT = 178 QTY = 2 Width = 144 Length = 102 answer would be 0.87 (rounded)
so this would be 87%
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Feb 25, 2012
I am having an issue with gridview and checkboxes in asp.net. I bind the grid at page load and add Attributes to the checkbox in the BindGrid() function:
chkSelection.Attributes.Add("onclick", "AbortPostBack(); __doPostBack('" + chkSelection.UniqueID + "','');")
AddHandler chkSelection.CheckedChanged, AddressOf ChkSelector_CheckedChanged
[code].....
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Apr 22, 2010
I have a ListView with Checkboxes in vb.net and what I want to do is when the user check the checkbox, the program ignore the response of the user in checking the checkbox, instead it leaves the checkbox uncheck..
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Mar 29, 2012
i am using vb2010, i am trying to make a groupbox with many checkbox inside i wane builds a function that will go throw all the checkboxs and return a string with the text of the chechbox(for ex: a pizza add-on where the user check what he wants)i dont wane start writing an if statment for each cheackbox becuse if ill have 1000 of them then it is stuped...
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Oct 20, 2009
Is there a way to make a listview have a checkbox? Because im going to have muti stuff in it and the user picks what he /she wants and so on. Or is this another item in the toolbox?
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Mar 20, 2011
[Code] The code is to make when one checkbox being checked, other checkbox within the gridview will be unchecked. But this code did not work at all. Is it my event handler wrong or code problem?
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Oct 3, 2011
I'm trainig to make a program, when you check 2 different Checkbox it add on textbox. The textbox need create a other line witout delete the fist.I dont have problems when checkbox it add on textbox but i dont make me a new line it's all togheter.
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Feb 5, 2010
I've created a basic form, entering the name and song of an artist. They can select a priority (1, 2 or 3) and it will drop the information into seperate columns of a listview. Based on the priority, the row is assigned an image in the item field of either an up, rgiht or down arrow. This works all fine. I selected the checkbox function to true and it places checkboxes next to every image as planned. However the checkboxes are just the arrows. If you click the 'checkbox' it keeps cycling through the 3 images.
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Mar 5, 2010
I ran some code through an automatic translator for C# to VB, and it translated some code like this:Public Property Title As [String]How is this different to Public Property Title As String
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Jul 2, 2009
how do i make an event for only one checkbox in the checked list box ie there are 3 items
item A
item B < this one needs to have the event...
item C
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Aug 27, 2009
Is it possible to make a checkbox large? So far, the sources i've read said that it's nearly
impossible.I've tried Cssclasses and it didn't work either. I don't want to cheat and use a TextBox.How can I make the checkboxes larger?
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Apr 5, 2009
I need to make the text value of a checkbox appear on a listbox when I check it and when make it disappear when I uncheck it. However, I need to do this with 100 checkboxes, and doing it per checkbox, I need a code that for any checkbox checked and unchecked, the text value will be listed or cleared on a listbox.
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Jun 9, 2011
IN VB.NET (VISUAL STUDIO 2005)I HAVE taken one textbox with some message and want to bold it by using chkbox control when checkbox is checked the text in textbox should be bold otherwise it is regular.i tried the code too many different ways but till now problem is not solved
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Jul 14, 2009
How can i make a datagridview which have a column like that i mean cells have both image and checkbox as this :
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Jun 25, 2009
i want to make checkbox as readonly not enable/disable.
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Oct 2, 2011
i have a datagridview with checkbox column including some others columns,my problem is that i want to make the datagrid noneditable except checkbox column..how do accomplish this task? my second question is that i have roll no column in datagridview.i m able to generate roll no through looping but unable to save them to database.
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Jan 4, 2011
I need to make a program (or if someone wants to make it for me, feel free to do so) that has a starter form with a combobox where you can select different sizes, like 2x2, 4x4, 6x6 and so on. When i then press the button to choose size, a new form would pop up , with 4 different grids of checkboxes, (white, red, green, blue).Do i have to make each form (frm2x2, frm4x4) and make each individual checkbox, or is there some other much greater solution?Because, in the end, i don't feel like naming 576 different checkboxes for just 1 form.
After all that has been made, it would be saved to a text file, with 0 being anything thats unchecked, 1 is white, 2 is red and so on. And it would look something similar to this:
[Code]...
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