I have created all the controls in my app in vb.net code. I have checkboxes that I want to be able to check the state in code and also check or uncheck if i need to this is my code which does not work
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i am running a dos command. now i created checkboxes to add parameters to the command. [code] but it only gives me a 1 or 0 but i want the parameter -h, -t, -v when the checkbox is checeked.
View 10 RepliesDoes anyone know how to pass values from adynamically created gridview checkboxes to a crystal report?Is it possible? I am using asp.net, vb.net and mssql. Here's my grid minus a few boundfields:
<asp:gridview id="grid" runat="server" autogeneratecolumns="False" cellpadding="4"
forecolor="#333333" gridlines="None" emptydatatext="No Products registered for this company...">
<RowStyle BackColor="#EFF3FB" />[code]............
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?
View 2 RepliesI have a form that opens another. I want the second form's checkbox to match the first form's after the second has loaded. I tried using MyForm2_Load, MyForm2_Activated and MyForm2_Shown but the checkbox checked state of the second form always changes the checkbox in first form. The code below works if I check the checkbox in either form, the other changes to match it. The problem occurs only when MyForm2 is first loaded. How can I get it to work the way I want it?
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All I want to do is build some kind of table-like or grid-like control in my form that has two columns. An element in the first column should be a checkbox that is changable by the user, and an element in the second column is some un-editable text. Of course, when the user checks or unchecks a checkbox, I have to be able to handle that event and figure out which row it came from.I've been trying this all day with no luck. Do I use a ListView or a DataGridView? If the answer is DataGridView, do I add columns and rows to it directly or do I try to make a DataTable which I then assign to the DataGridView's "DataSource" property?Is is possible to make editable checkboxes in a DataTable? I succeeded in making checkboxes by making a DataColumn of type boolean, but then I couldn't check or uncheck them during runtime.
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but then I couldn't figure out how to add rows. The examples online all assume that there is only string data in each row.Also there is apparently a type called DataGridBoolColumn? What is that all about?My point is there are a lot of different objects out there with similar sounding names
In my project, I have a local dataset (XSD) that I am using as local-temporary tables. I am getting a System.InvalidCastException when trying to access the field in one the tables. I believe this is because I my code is (incorrectly) not setting a field's value in a row before trying to access it.My problem is that the exception is breaking in the designer file and not in my code. As a result, I'm having difficulting determining which line of my code reading the field value before it has been set. Is there any way to configure Visual Studio to break in my code instead of in the designer created file?
View 1 RepliesI want to create two columns of checkboxes but only the first column is being displayed.
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I have a theater seating project. I am creating checkboxes in a panel that represent the seats. Each of the rows has a label on it, giving it a row number.When a user clicks one of the check boxes, I need to be able to determine what row the seat was that they clicked on. I then use the row number to determine the price of the seat. I am stumped!! I can't seem to figure out how to get the row number associated with the seat. Here is my where I am configuring the seats:
Private Sub ConfigureSeating()
intTheaterID = CInt(frmTheaterTickets.cboTheater.SelectedItem)
Dim strSQL As String
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I am working on a program that has about 20 checkboxes on it. What I want to be able to do is to check the checkboxes and then hit an apply button then at that point whatever is checked/ or if something is unchecked the code for that item is run and those changes are applied. If the box is checked it disables the service if it is unchecked it enables the service.
the code I have so far is this for each service I want turned off i have placed under a button name ApplyEach service is a different registry entry and service name, some are just registry key changes.the code seemed to work at first but that is when I only had one checkbox under the button.
I know I have done something wrong with the program logic here Im just not sure how to fix it as I've only been using VB.net for 2 weeks now... I can't find any reference on the internet to having multiple checkboxes with an apply type button. Just like in a normal windows application where the apply button is used to apply the changes on the form.
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I'm trying to use checkboxes to show and close child forms.I'm using MDI. I want to try and make the child form show inside of the parent form like it should.This is the code I was using:
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And that works, but if I close the window instead of using the check box and then try to use the checkbox to open the new window again i get an error:Object reference not set to an instance of an object.Also I have more than one checkbox (each one serves a child form) and I would like to be able to open and close any of the child forms at any time.
i have this code for saving my DGV as a comma separated text file:[code]It saves fine, but where checkboxes are unchecked, or "false" in the text file, these show as blank columns which then throw errors when i reopen the text file into the datagridview.how can i get my code to save checkboxes which are not checked as a "false" value.
View 17 RepliesI would like to use checkboxes to determine the names of multiple labels, but seems like a lot of code.
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I can do this using VBA, but I want to be able to create the code using a compiled VB programme, which can then be opened in Excel.
View 1 RepliesHow do I close all opened forms which are created on the fly?
Sub OpenForms
dim F as new frmForm1
F.show
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I want to close all opened frmForm1?
In my program it detects if there is more than one monitor connected. It then creates a form on each monitor screen and you just click on the screen that you want the program to run on.
Here's where I'm having a problem. Everything works great, but when I load my MAIN form how would I call those programmatically created forms? I can't just do frmYou.close.
Here's the code I use to create the forms.
Public myScreen As New Point
Public ScreenReady As Boolean = False
Public sX As Integer'holds screen x width
Public sY As Integer'holds screen y height
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But why can't I figure out how to get one of any number of created WebBrowser controls to navigate to a website?I have a FORM a BUTTON and TWO TEXTBOX controls at design time. I run the program and it creates a random number of WEBBROWSER controls named WebBrowser1 to WebBrowser whatever.textbox1.text = a number, 1 - max number of created webbrowsers, determined in whatever way it is. but what if textbox1.text could equal 35, or 1, or whatever. HOW DO I REFERENCE IT'S ASSOCIATED WEBBROWSER CONTROL?!?!?I've spent a few hours researching this and I find page after page on creating controls, but I can't change the data of a control determined at run time, and I can't find how to anywhere.
View 3 RepliesI have created a new icon using VB.NET and have saved it to the project directory. I then set the icon property for a form to point to my new icon file. The new icon shows up in the properties window but when the program runs, the title bar displays the default icon that you get when starting a new icon file rather than my new icon.
View 5 RepliesFor example, when I click on the btn(5) I would like the textbox1 says: "5"
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I have programmatically created a new project from a windows application. I now want to programmatically add a form to this project that already has some data bound controls on it.
View 4 RepliesI have never programmed anything in my life -- and I'm learning VB from a tutorial which I found here:[URL]...So I've created my button and added the code. Then it says:
"Now run your first application!"I have no idea how to do that!
I create many buttons in code like :
Public Sub GenereTextBox(ByVal rep As String)
Dim txt As New TextBox
Dim fnt As Font
fnt = Me.Font
txt.Location = New Drawing.Point(26 + NbreCacher * (68), txtOrdonnee)
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And I want delete some buttons create when I click on my button, but I don't how I can do, because these buttons are create in code??
I am writing a game tenetivly labeled Code Invaders. It is similar to space invaders in which a space ship shoots out lasers at the incoming enemies. My problem is the lasers exiting the space ship. I can create them except they won't move...
Public Class frmMainInvasion
Dim activationCheck As Boolean = False
Private Sub frmMainInvasion_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
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I'm making a program where at the click of a button, a textbox is added to the form.
Basically, right now my code looks like this:
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(Public)
Dim i As Integer = 0
Dim s As String = ""
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Now when the user clicks a different button, I want it to get the value of the textboxes that were created in the code.
OK, so my project is like this:The user selects a folder from their computer that holds a list of subfolders. The program then dynamically inserts a check boxes per subfolder within a seperate cell of a Table Layout Panel.I want to and a simple Click event to each checkbox control so that when a control is clicked, it counts all of the check boxes on the form that are checked.How do I go about adding the event handler to the checkboxes when they are created. Here is the code that adds the checkboxes:
Dim iCol As Integer = 1
Dim objFolder As Object = Nothing
For j = 0 To rCount - 1 '0 to dynamic number of rows
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I'm working on a project and my boss insists I use a DataGrid for this. The grid holds information for work orders, one of the cols has a check box in it. I need the user to be able to select any number of those checkboxes/rows and then return a value to the table "stamping" that users ID. This is what I have so far to get the grids populated... I'm using 2005 with a 2000 Access Database if that helps. Though this will be changed to SQL Server once we get it working (yay more work)...
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I removed the code from the second grid to make it easier to read, obviously once I can get one to work the second shouldn't be as much trouble.
This is the check box: dgvNewBiz.Columns(1).HeaderText = "Select"At this point if someone knows how to get it to recognize the click event of the check box and pass that row info to a variable that would be super as I'm sure I could probably figure it out from there.
What I am trying to do is create a form in code that runs while the BackGround worker is running.I created a form the normal way with a label and progress bar but I want to update the label with what is going on in the BackGround Worker.Doing it the standard way isn't updating the label on the form.So my next idea is to create a form in code which I have done, but now I can't remember how to add controls to that form at runtime.Here is the code I have so far.[code]So from here I have tried the CreateControl() and the Controls.Add() and neither one is working for me.
View 7 RepliesI have a search page in my application where I am searching the database for the records that meet the specified conditions that the user selects. All of this works by creating the dataset, datatable, and dataadapter in the code. I then take a created bindingsource link it to the created datatable and then attach the bindingsource to my datagridview to display the results. Now what I am trying to do is to figure the Mean, Median, Mode and Standard Deviation of the results that were found above. My question is how to I run a select query on the code created table. I have the select query I want to use and when I try to use it in the code it talks about the connection. Now I have a dataset that is part of the project and I have the on just for the search page. Let me know if you need any code samples.
View 10 RepliesI created a listbox and button in my application using vb code.When the user select an item in the listbox and click on the remove button, the item will be removed from the listbox. I know how to remove the item in the listbox, but I don't know what coding to add to activate the click event on the button.
View 4 Replieshow to refer to a column created in code for a listview, I need to set it's width property but don't know how to refer to it in code.
lsvOrderDetails.Columns.Clear()
lsvOrderDetails.Columns.Add("Product")