i have a class where are code the methode that i have to use in my form. i want to display on a button with a if statement a text value depending of the requirement are met. i put the code of the class here:
[Code]...
i have a problem with a SELECT statement.I have a table <EisagogiStoixeion> with 6 columns, one of then is < AgonPeriodos>. I want to display data in a datagridview depending on the column <AgonPeriodos>. I use the Select statement like this :
SELECT * from EisagogiStoixeion where AgonPeriodos = '" & textbox1.text &"'.
Value not set for one or more required parameters. This is my problem on the fill command.
If i don't use the where statement everything is ok and i can see the data including the data from the AgonPeriodos column.
I want to display a message box to inform a user of a requirement. In this case, the requirement is to insert a USB flash drive. This is easy enough:
MessageBox.Show(blah, blah, blah)
This message box will only have an OK button. What I need to happen is this:The OK button should not be available (enabled) until after the flash drive has had a chance to initialize. We will say this takes 2-4 seconds. So how to I keep the OK button disabled during this time and then enable after the time has passed?
I am building a vb.net application with VS2010. The aim of the application is to change sln. files from VS2005/2008 versions into VS2010.I am using a Form with 2 text boxes and 2 buttons. When I click the 1st button it reveals the sln file in the text box. Then i have a 'convert' button that I want to use to 'convert' the file that appears in the first text box. I have come quite far with the source code but am just a bit puzzled as to how i can retrieve the VS2005 sln files and to get the 'convert' button to display the text in the 2nd text box.[code]
View 5 RepliesI have read a text file into a textbox. The text looks like this (small snippet):
N08861 A1 P 0 A2 P 0 A3 P 0
N08862 P 0
N08870 P 0
N08900 P 00000001
What I want to do is to only display certain lines - this depends on the N number shown above.
E.G. I want the text box the display line N5000 upto N6000.
See
Public Class Form1
Dim sql As String
Dim conn As New OleDb.OleDbConnection
Dim da As New OleDb.OleDbDataAdapter
[CODE]...
The problem, The INSERT statement works fine in the form load but not in the button click event?
What is the appropriate declaration such as "ValueChanged" or "Click" for a NumericUpDown that will execute the code when I press enter. I already know that setting the "AcceptButton" property of the main form to a default button will not work, especially if I want a different button to be selected depending on which control I give focus. How do I accomplish this?
PS: Is the syntax any different from Visual Basic 2010 Express than it is on Visual Studio 2012 RC (running in Visual Basic Mode)?
Im currently trying to get button depending on what the background is to do something
EG:
if Button19.BackgroundImage = my.resources.play then
AxWindowsMediaPlayer1.Ctlcontrols.play()
This doesnt work, but is there any other method of doing this?
This is interesting. We've spent the last day attempting to patch a problem with the following (legacy) code that continues to grow its process size. This is done in Visual Studio 2003.We have a form on which we display an image (from MemoryStream) and some text and a button. Nothing fancy. Looks something like this: Protected Overrides Sub OnLoad(ByVal e As System.EventArgs)
[Code]...
Now. We've tried very numerous things. We've discovered that Disposing does nothing, and, indeed, the IDisposable interface doesn't actually touch memory. If we don't create a new CJ5Form_PTOperatorAcknowledgement form each time, the process size does NOT grow. But loading a new image into that form still causes the process size to continually grow.
Simple question I couldn't find in the book or online. I have a Button which needs to have permanent text set to 'Calculate' and 'Section' on separate lines. The 'Multiline' option I have seen mentioned does not appear in my properties. I can't 'show the code' as I think it is a properties setting.
View 7 RepliesI am new to VB and seeking to create a visual basic program which controls the display of several on-screen elements depending on a single value input by a user. The user can enter anyone of 2500 values and depending on the value entered, five different display elements on the screen will change color or text. The program's response to a given input value never changes, in other words if the user enters 279, the five different display items will always be the same. However, there is no real pattern to the display items that would allow for programming an anticipated response to the input value.
My thinking is to create a large and ponderous "lookup table" in visual basic - I am assuming this an be done but perhaps there is a different or better method. I plan on creating the lookup file in Excel but was assuming I'd need to export it to something that VB could easily read. Any suggestions on the best way to do this? Does the lookup table reside as a separate .txt files someplace or something like that? [Code]
I have a question regarding radio buttons. I am creating a little prog that has three separate radio button groups. After selecting one button in each group, I would like a text box to display a value. The text box value will be a number between 50 and 350 or so.
View 19 Repliescreating a mortgage calculator that display continuous information depending on the user input such as monthly payments, remaining balances, and interest paid. I am attempting to use a list box and am currently stuck. [code] Please use code tags when posting your code. Code tags are used like so.
View 1 RepliesI have a Main form, called Main.vb, that is a Parent Form. I have another form called Notes.vb. Inside Main.vb I have a toolstrip with a button on it called Notes. I'm wanting to change the checked status of the Button to either True when the Notes.vb window is open inside the parent or to false when it is close. Is this possible?
View 6 Repliesform1 have four buttons, i want to set a label text in form2 according to which of the button on form1 is clicked.below is what i tried so far.on form1 each of the button click event i made it focus
Private Sub Answerbtn3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Answerbtn3.Click
Me.Focus()
Form2.Show()
and on form 2 load event i have
Private Sub FinalAnswer_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If Main1.Answerbtn1.Focus Then
Label2.Text = "You choosed option '
[code]....
the above code displays only the first condition ("You choosed option 'A'"") on the label when any of the button is clicked?
i wan to display the text from combobox into the textbox and clear the combobox text when click on the button.But when i select another text from the combobox and click the button, the textbox display and overwrite the previous text.How can i do so that when click, textbox display text from combobox and clear combobox text. Then click again, display the new text at 2nd line of the textbox without deleting the previous text?
View 5 Repliesi am using vb.net 2005, in my window form i have textbox as txtbox1 and txtbox2. if i entered any text in txtbox1 and press my tab button the txtbox2 should display the same text as txtbox1 .
View 2 RepliesI am here by to ask help on enhancing messageboxs. How is the way to Display a picture(like a JPG file) inside a messagebox along with text when a button is clicked?
View 9 RepliesI have a web page that I need to log in, the first page is not a problem I can log in as it only has the company name to enter, but from here is where I have problems, as when the first page is done, I am directed to a second page with two fields that has to be filled, filename and author, then depending on the action you have to click on in button,out,button delay button, here is where I need help, how do I fill the second page fields and how to chose the right button depending the action to take.
View 9 RepliesIs it possible to add text next to its value in a cell, depending on its value?
as example if the value of the cell is less than 1.00, the box will turn to red color and will be appear.
attachment 1 (pic1) is the image before and attachment 2 (pic2) is the image result i want.
i have successfully color the box and having problem with adding the text.
I'm looking to create a simple program with 1 text field, 1 button, and an area to display what is happening and if there were any errors.My goal is to be able to delete user profiles stored on a network drive by simply putting in the users ID and hitting the button.I'll use my own id as an example:If I put mdesieno in the txt box and hit the button, I'll need the button to map to the network drive and delete mdesieno.corp and mdesieno.v2 I would like the bottom half of the window to display text like:
"Deleting User Profile mdesieno.corp" SUCCESSFUL
"Deleting User profile mdesieno.V2" SUCCESSFUL
To me this seems pretty simple, but as I said, I do not know VB yet. Is there code out there that is already written to do something like this?
I am trying to make the application similar to Notepad++. Notepad++ colours text depending on what type they are, eg. HTML, PHP, CSS, Java, ect.
I just wondered if somebody might be able to help with this? I have no clue where to start, but I have an idea of how it would happen.
- Text is entered into the RTB (RichTextBox)
- The text is read by the program as it's entered
- The text is coloured depending on the type
I have a little loop what reads in a text file the text layout is[code]...
View 9 RepliesI have 2 text boxes one for email and one for Name. If text is entered in email I want to make Name required field. How can I do this using .net validation controls?
View 1 RepliesI'm trying to play around with combo boxes and trying to figure out how to navigate to a certain url in webbrowser1 depending on the text selected in combobox1.
VB
Imports System.Windows.Forms
Imports System.Net
Imports System.IO
[Code].....
im searching on how to change labels text color inside the code depending on my needs , for example my label's text is set to = "hello world" , can i change hello's world color to x and world's color to y?
View 4 RepliesI'm trying to add functionality to my application that will disable buttons and checkboxes depending on what version the OS is when the app is launched. I made a test app to test this but unfortunately I can not get it to work. Here is my code:
'OS Check
Dim osValue As Object
osValue =
My.Computer.Registry.GetValue("HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrent Version", "CurrentVersion", "5.2")
[Code]...
*Note - 5.2 is Windows 2003, 6.0 is Vista, 5.1 is Windows XP
I am unable to change my button text to "&" .
Button1.text = "&"
When I run the program button has no text.
What could be the problem ?
In trying to test some graphic features, I am trying to get them to display on load so button doesn't have to be pressed. I used the following code as suggested from forum. Message boxes run but ellipses aren't displayed until button is clicked which is what I am trying to avoid!
Private Sub Form3_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Button1.PerformClick()
Button1_Click(Nothing, Nothing)
[code]....
I have 2 dropdown lists, 1 label & 1 textbox.on selection of 'product categories' @ 1st ddl, 2nd ddl displays all product categories.question is, how may i display the product category id @ the label, and name @ the textbox, on load/selection of 2nd ddl?[code]....
View 3 Replies
